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 1 2 3 
 
 1 
 
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 4 
 
 5 
 
 6 
 

GUIDE 
 
 TO THE GENERA AND CLASSIFICATION 
 
 OF THE 
 
 NOETH AMERICAN ORTHOPTEEA 
 
 FOUND NORTH OF MEXICO 
 
 BY 
 
 SAMUEL HUBBARD SCUDDER 
 
 CAMBRIDGE 
 EDWARD W. WHEELER 
 
 1897 
 
 ^t .., % 
 
 ENT0M6y)6lCAL 8rAW6H . 
 
 DEPARTMENT OF AGRiCUL JURE 
 OttAWA - - CANADA 
 
The poetry of earth is never dead: 
 
 When all the birds are faint with the hot sun, 
 And hide in cooling trees, a voice will run 
 
 From hedge to hedge about the new-mown mead ; 
 
 That is the Grasshopper's — he takes the lead 
 In summer luxury, — he has never done 
 With his delights; for when tired out with fun 
 
 lie rests at ease beneath some pleasant weed. 
 
 The poetry of earth is ceasing never: 
 
 On a lone wintar evening, when the frost 
 
 Has wrought a silence, from the stove there shrills 
 The Cricket's song, in warmth increasing ever, 
 And seems to one in drowsiness half lost, 
 The Grasshopper's among some grassy hills. 
 
 Keats. 
 
 (oO 
 
PREFACE. 
 
 The following Tables and Bibliographies are published, not as 
 a finality, but for temporary use by students of Orthoptera in this 
 country, who have few means for working up their collections. 
 The author contemplates a general work on the classification of our 
 Orthoptera, of which this is merely a Prodromus and which may 
 serve its purpose until the material at hand has been more thor- 
 oughly studied. The frequent demands made for information 
 have prompted it. The greater number of the tables are based 
 upon those of Stal, Brunner and de Saussure, but these authors 
 are in no wa}'^ responsible for the form in which they here appear. 
 
 A great deal of work has yet to be done, especially in the 
 Saltatorial families, before even the genera of our fauna are 
 fairly known. What is given below includes only data already 
 published or about to be published. Nearly two hundred genera 
 are included in the tables. 
 
 Cambbidoe, Mass., April 13, 1897. 
 
CONTENTS. 
 
 Preface 
 
 Table of the families of Orthoptera 
 
 Table of Forficulidae 
 
 Tables of Blattidae 
 
 Tables of Mantidae 
 
 Tables of Phasmidae 
 
 Tables of Acridiidae 
 
 Tables of Locustidae 
 
 Tables of Gryllidae 
 
 Bibliographical Notes : General 
 
 Forficulidae 
 
 Blattidae 
 
 Mantidae 
 
 Phasmidae 
 
 Acridiidae 
 
 Locustidae 
 
 Gryllidae 
 List of the Literature 
 Index 
 
 PA (IK 
 
 8 
 11 
 12 
 16 
 19 
 22 
 51 
 62 
 67 
 67 
 68 
 70 
 71 
 72 
 77 
 80 
 88 
 88 
 
OTTAWA ^'' ^^^'CULTURE 
 UTTAWA - . CANADA 
 
 GUIDE TO THE 
 
 GENERA AND CLASSIFICATION 
 
 OF NORTH AMERICAN ORTHOPTERA. 
 
 All the seven families of Orthoptera are found in the United 
 States, but only ^Jie saltatorial families in any considerable vari- 
 ety, unless we maj except the Blattidae. In the subfamilies how- 
 ever the case is different, for less than half of them occur within 
 our boundaries at all and a number that do occur are represented 
 only by a single (often introduced) species. The following list 
 will show the proportion that occur in the different families. 
 
 Forficulidae 1 subfamily represented out of 1 recognized. 
 
 Blattidae 
 
 6 subfamilies 
 
 (( 
 
 (( 
 
 11 
 
 a 
 
 Mantidae 
 
 
 
 (( 
 
 u 
 
 6 
 
 u 
 
 Phasmidae 
 
 3 
 
 
 (( 
 
 u 
 
 12 
 
 (( 
 
 Acridiidae 
 
 4 
 
 
 (( 
 
 u 
 
 9 
 
 u 
 
 Locustidae 
 
 6 
 
 
 ({ 
 
 u 
 
 15 
 
 n 
 
 Gryllidae 
 
 G 
 
 
 (( 
 
 u 
 
 6 
 
 u 
 
 28 " « « 60 « 
 
 It will be seen that even in the saltatorial families scarcely 
 more than half of the subfamilies occur, notwithstanding that all 
 the subfamilies of GrylUdae have representatives. The repre- 
 sentation is shown also to be very unequally distributed. 
 
 The families of Orthoptera may be distinguished by the table 
 given on the next three pages. 
 
I* 
 
 
 8 
 
 GUIDE TO ORTHOI'TEHA 
 
 Families of Orthoptera. 
 
 A^. Non-Haltatorial and mute, llind femora cloHcly reHembling 
 tlioHc of the other legs, and scarcely if at all stouter or longer 
 than the middle femora; organs of flight in a normal position 
 when immature ; ovipositor concealed by the suhgcnital plate. 
 6'. Mouth anterior; tarsi with not more than Oirce joints; anal 
 area of wings (when present) extending around the ajtex over 
 more than half the front border of the wings ; abdomen termin- 
 ated in both sexes by forcipate appendages. FouFi<aiLii)AK. 
 b^. Mouth posterior, inferior, or at most antero-inferior ; tarsi 
 five-jointed*; anal area of the wing never infringing on the 
 front border ; abdominal ajjpendages not distinctly forcipate. 
 c'. Hody oval, depressed, much broader than deep at the 
 posterior extremity of the prothorax ; liead nearly lior' ntal 
 and wholly or almosi wholly concealed beneath the i)ro- 
 notum, the mouth posterior or infero-posterior when at rest ; 
 ocelli generally two in number ; pronotum clypeate, generally 
 transverse ; legs depressed. Insects of rapid movement. 
 
 Blattidae- 
 t^. Body elongate, generally narrow, even when depressed or 
 expanded generally but little broader than deep at the poste- 
 rior extremity of the prothorax ; head free, often separated 
 from the protaorax by a deep constriction ; ocelli three or 
 wanting ; pronotum never transverse, except occasionally by 
 laminate expansions; legs rarely depressed. Insects of 
 delibei-ative movement. 
 
 d^. Head oblique, generally trigonal ; mouth inferior or 
 infero-posterior ; ocelli three ; antennae rarely as long as the 
 body, generally slender; pronotum generally longer than 
 any other segment ; fore-legs raptorial, terminating in a 
 single claw, which with the tarsi is placed beneath the 
 spinous tibiae when at rest; anal cerci articulated. 
 
 Mantidae. 
 
 « Occasionally a joint is absent, probably by accidental loss of the leg in early life, 
 since in the reproduction of lost limbs one tarsal joint always disappears. 
 
CHembling 
 or longer 
 il position 
 :,al plate. 
 >iiitH; anal 
 apex over 
 en terniin- 
 
 'rior ; tarni 
 ng on the 
 rcipate. 
 3ep at the 
 hor* -ntal 
 I the pro- 
 en at rest ; 
 , generally 
 cnient. 
 
 LATTIDAE- 
 
 spresseil or 
 , the postc- 
 
 separated 
 three or 
 donally by 
 
 nsects of 
 
 inferior or 
 ong as the 
 nger than 
 ating in a 
 ncath the 
 ated. 
 [antidae. 
 
 ; in early life, 
 
 FAMILIES OF OIlTIIOrrERA 9 
 
 iP. Head subhorizontal, generally (|uadrato or gibbous; 
 mouth antero-inferior ; ocelli often wanting; antennae 
 generally longer than the body and coarse ; pronotum 
 very short ; f(»re-legs constructed lik»; the others, termin- 
 ating in a pair of claws, the fore femora often arcuate at 
 the base ; anal corci inarticulate. . . Piiasmidae. 
 A^. Saltatorial and generally stri<lulating. Hind femora very 
 much stouter basally, or very much longer, or both, than the 
 middle femora ; organs of flight in a reversed position when im- 
 mature; head vertical; o-. i' >sitor, with few exceptions, free. 
 bK Antennae much shon i than the body (with few excep- 
 tions), filiform, clubbed or ensiform, but if the first scarcely 
 tapering, the joints C jnct, ofteii depressed; ocelli three; tarsi 
 three-jointed, similar in strvciure on all the legs ; stridulating 
 organs (when present) ^itiiated on the hind femora and costal 
 field of the tegmin a ; auditory organs (when present) on the 
 basal segment of the tibdomen ; ovi[(nsitor composed of a dis- 
 crete double pair of short arcuate plates, vertically diverg'iit 
 
 at tip. ........ ACEIDIIDAE. 
 
 b^. Antennae much longer than the body, setaceous, delicately 
 tapering ; ocelli often wanting ; tarsi three- or four- jointed ; 
 stridulating organs (when present) situated on the anal field of 
 the tegmina ; the auditory near the base of the fore tibiae (or 
 rarely on the prosternum) ; ovipositor usually prolonged Into a 
 compressed blade or needle, its parts compact. 
 
 c^ Ocelli generally wanting; tarsi four-jointed, nearly similar 
 in structure on all the legs*; fore coxae usually broader than 
 long t ; Diiddle field of tegmina in repose, like the costal field, 
 nearly or quite vertical ; base of male tegmina (when present) 
 furnished on dorsal surface with a tympanum limited to the 
 anal area, crossed by a ])rominent nervure formed by the 
 last branch of the anal vein, and as a whole narrower tha.i the 
 rest of thetegmen; ovipositor (unless, as rarely, concealed) 
 forming a strongly compressed, generally ensiform blade, 
 the inner valves almost always partially exposed the entire 
 length of the ovipositor, the tip not expanded. Locustidae. 
 
 * In Daihinia the fore and bind tarsi are tbree-jointed. 
 t Excepting in Stenopelmatinae and Gryllacrinae. 
 
Il 
 
 10 GUIDE TO ORTHOPTERA 
 
 c". Ocelli variable ; tarsi three-jointed, those of the fore legs 
 or else of the hind legs differing from the others in structure ; 
 fore coxae longer than broad; middle field of tegmina in 
 repose, like the anal field, nearly or quite horizontal * ; base 
 of male tegmina (when present) furnished on the dorsal 
 surface with a tympanum (rarely absent) extending across 
 both anal and median areas, crossed by a prominent nervure 
 formed by the main anal vein, and as a whole broader than 
 the rest of the tegmen (except in Gryltotalpinae) ; ovipos- 
 itor (unless, as rarely, concealed) forming a nearly cylin- 
 drical straight or occasionally upcurved needle, the inner 
 valves generally scarcely exposed except at the expanded tip. 
 
 Gbyllidae. 
 
 *The Asiatic Scliizodactylus is a curious example of a Locustid, with an enor- 
 mously developed and horizontal anal field, giving it the aspect of a Gryllid. 
 
 il 
 
 
 N 
 
FORFICULIDAE 
 
 11 
 
 FORFICULIDAE. 
 
 This family has never been divided by systematists save into 
 genera, of which half a dozen occur in the United States, and 
 may be separated by the subjoined table. Somewhat more than 
 thuty genera are now recognized in the whole world. None of 
 our genera are restricted to our territory. 
 
 Genera of Forficulidae. 
 A^. Sixth antennal joint much shorter than the first. 
 
 bK First antennal joint as long as the fourth to sixth joints 
 inclusive. 
 
 cK Furnished with both tegmina and wings. 
 
 Lahidura Leach, 
 c^ Possessed of neither tegmina nor wind's. 
 
 Anisolabis Fieber. 
 h^. First antennal joint no longer than the fourth and fifth 
 joints together Spongophora ServUle. 
 
 A\ Sixth antennal joint as long or very nearly as long as the 
 
 first. 
 
 h^. Sixth antennal joint cylindrical, many times longer than 
 broad; second tarsal joint produced beneath the first, 
 ci. Forks of the male forceps dilate at base, contiguous. 
 
 Forficula Linn4. 
 c\ Forks of male forceps not dilate at base, separate. 
 
 Sphingolabis Bormans. 
 ¥, Sixth antennal joint plainly obconic; second tarsal joint 
 
 simple, compressed Zahia Leach. 
 
 The first two genera are represented by single cosmopolitan 
 species, introduced along the Atlantic coast. Spongophora is 
 also known only by a single species, found in the Southern 
 States and southward. The other genera are better represented, 
 especially Forficula, but most of the species are confined to the 
 extreme south. Hardly more than a dozen species of the family 
 occur anywhere in the United States. 
 
12 
 
 GUIDE TO ORTHOPTERA 
 
 
 i > 
 
 BLATTIDAE. 
 
 Only about half the subfamilies of Blattidae occur in North 
 America north of Mexico, and half of those that do occur are 
 represented only by one or two commercially introduced species. 
 A single subfamily is fairly well represented by indigenous species, 
 and of all the genera only one is confined to the United States. 
 Many of the genera occur in both the Old and New Worlds. 
 
 Subfamilies of Blattidae. 
 A ^ All the femora, or at least the middle and hind pair spined 
 beneath. 
 
 b \ Last ventral segment of female abdomen relatively plane, 
 not compressed-rostrate, entire, not fissate; fore femora rarely 
 armed beneath on the inner margin with many distinct spines 
 next the genicular spines, and if so then the styles are unequal 
 or one is wanting. 
 
 c ^ Pronotum and tegmina glabrous ; tarsi without pulvilli ; 
 median vein of wings sending but few veinlets to the apex, 
 the radial many parallel, generally simple veinlets to the 
 costal margin. ...... Blattinae. 
 
 c ^ Pronotum and tegmina more or less pilose ; tarsi provided 
 with pulvilli ; median vein of wings with many branches, the 
 radial emitting relatively few and more or less irregular 
 veinlets to the costal margin. . . Nyctoborinae. 
 
 b '^. Last ventral segment of female abdomen compressed-ros- 
 trate, fissate so as to be bivalved ; fore femora armed beneath 
 with many spines on the inner margin, throughout nearly or 
 quite the whole length or at least in the middle ; styles of equal 
 length. ....... Periplanetinae, 
 
 A ^ The middle and hind femora, and usually all the femora, 
 without spines beneath.* 
 
 b ^ The supraanal plate more or less produced in both sexes, 
 its hind border emarginate. 
 
 c ^. A distinct arolium between the claws ; pronotum and 
 tegmina glabrous ; anal field of wings multiplicate when at 
 rest. ....... Panchlorinae. 
 
 * Bristles or hairs must not be mistaken for spines. 
 
BLATTIDAE — BLATTINAE 
 
 13 
 
 c2. No arolium between the claws'; pronotum and tegmina 
 more or less pilose ; anal field of wings uniplicate when at 
 rest, or simply folded without plication beneath the anterior 
 
 ■ft 1 vl 
 
 ^ ^ • • • . Corydinae. 
 
 b . The supraanal plate short or rather short, the hind margin 
 straight or rounded, not emarginate. 
 
 c ^ A distinct arolium between the claws ; subgenital plate 
 of male more or less produced, furnished with one style ; 
 tegmina and wings present. . . . Plectopterinae. 
 No arolium between the claws ; subgenital plate of male 
 
 Patiesthinae. 
 
 minute, without styles ; apterous. 
 
 Blattinae. 
 Only half a dozen genera of this subfamily have been recog- 
 nized in the United States, although this is nearly half as many 
 as are known from Mexico and Central America and is a larger 
 number than appertain to any other of our subfamilies of Blat- 
 tidae, and the genera are represented by more species than in any 
 other subfamily. 
 
 Genera of Blattinae. 
 
 a\ Tegmina completely developed, or in the female rarely 
 abbreviate. 
 
 b \ Tegmina membranaceous or slightly coriaceous. 
 
 c K Antennae basally incrassate, densely but briefly pilose, 
 often particolored. . . . Thyrsocera Burmeister! 
 c'K Antennae setaceous, sparsely pilose, unicolorous. 
 
 t?^ Ulnar vein of wings emitting complete branches to 
 the apical margin and incomplete branches to the vena 
 
 dividens Ischnoptcra Burmeister. 
 
 d^. Ulnar vein of wings emitting no incomplete branches 
 to the vena dividens. 
 
 c ^ Ulnar vein of wings undivided or furcate. 
 
 Blatta Linn^. 
 e ^ Ulnar vein of wings ramose. 
 
 Phyllodromia ^qtyiWq. 
 
w 
 
 14 
 
 GUIDE TO ORTHOPTERA 
 
 b^. Tegmina corneous. . . Ceratinoptera Brunner. 
 
 a ^. Tegmina in both sexes abbreviate, corneous, exposing a por- 
 tion (generally a great portion) of the abdomen. 
 
 d \ Tegmina articulate ; wings present though minute. 
 
 I'enmopteryx Brunner. 
 
 b '\ Tegmina squamiform, lateral, not articulate ; wings wanting. 
 
 Loboptera Brunner. 
 
 All of these genera are found in the southern portion of the 
 United States, and only Ischnoptera, Blatta (introduced) and 
 Temnopteryx in the northernmost portions of the country. Thyr- 
 socera, Blatta, Ceratinoptera and Loboptera only occur in single 
 species, so far as is yet known. Ischnoptera (Platamodes Scud- 
 der) is the most prolific in foims. A careful study of our native 
 Blattinae is much to be desired. 
 
 Nyctobokinae. 
 
 Represented by only a single species of Nyctobora Burmeister 
 found in southernmost Texas. 
 
 Periplanetinae. 
 
 Four genera of this subfamily occur in the United States, only 
 one other genus occurring in North America south of our 
 boundaries. 
 
 Genera of Periplanetinae. 
 
 a^. First joint of hind tarsi shorter than the others together; 
 arolia rather large. 
 
 b^. Tegmina abbreviate and apically truncate, or wanting. 
 
 Eurycotis Stal. 
 b ^. Tegmina as long as but not surpassing the body. 
 
 Pebnatosilpha Dohrn. 
 « ^ First joint of hind tarsi as long as or longer than the others 
 together; arolia small. 
 
 b ^ Eyes at least as far apart as the antennal scrobes ; tegmina 
 more or less abbreviate, especially in the female. 
 
 Stylopyga Fischer de W. 
 
BLATTIDAE — PANCHLORINAE |§ 
 
 h *. Eyes less distant than the antennal scrobes ; tegmina fully 
 developed in both sexes. . . Periplaneta Burmeister. 
 Pelraatosilpha and Stylopyga have only a single representative 
 each ; the others have two or three species each. The species of 
 Stylopyga and Periplaneta are introduced foi-ms (from the Old 
 World or the American tropics) and now occur widely over the 
 United States. The others are found only in the extreme south. 
 
 Panchlorinak. 
 
 The two genera of this subfamily occurring in the United 
 States are each represented by a single introduced species, and 
 may be distinguished thus : — 
 
 Genera of Panchlorinae. 
 
 a^. First joint of hind tarsi densely biseriately setose beneath 
 through the greater part of its length, and furnished at tip with 
 a small naked plantula. . . . Panchlora Burmeister. 
 a '. First joint of hind tarsi bare or nearly bare of bristles beneath, 
 a naked plantula extending very narrowly over the whole joint. 
 
 Pycnoscelus Scudder. 
 
 CORYDINAE. 
 
 Represented in the region adjoining Mexico by Homoeogamia 
 Burmeister, of which we have probably more than one species. 
 
 Plectopterixae. 
 
 A single species or two of Chorisoneura Brunner occur in the 
 extreme southern states from Georgia to Texas. 
 
 Panesthinae. 
 
 The anomalous'genus Cryptocercus Scudder is represented by 
 a single species found from Virginia to California. 
 
w 
 
 u 
 
 GUIDE TO ORTHOPTERA 
 
 xMANTIDAE. 
 
 Only eleven genera of this family are found in the United 
 States and only two of the six subfamilies are recognized, and 
 one of these by but a single species, an interloper from further 
 south, as is the case also with some of the genera of Mantinae, 
 the subfamily to which the others belong. The species are all 
 confined to the southern half of the United States, and most of 
 them to the extreme southern margin. The family is notoriously 
 a tropical one. 
 
 /Subfamilies of Mantidae. 
 
 A ^ Upper surface of middle and hind femora and tibiae 
 rounded ; head unarmed. ..... Mantinae. 
 
 A^. Upper surface of middle and hind femora and tibiae 
 carinate ; middle of head with an erect process as long as the rest 
 of the head Vatinae. 
 
 Mantixae. 
 
 The larger development of this group in the United States 
 would be looked for from its preponderance further south. Most 
 or all of the genera occur also beyond the southern boundaries of 
 the United States, so that we have no endemic genera unless 
 Bactromantis be excepted. 
 
 Genera of Mantinae. 
 A ^ Inner margin of upper surface of fore coxae not conspicu- 
 ously dilated apicallv. 
 
 b ^ Pronotum but slightly longer than fore coxae ; eyes more 
 or less conical ; hind femora armed exteriorly with an apical 
 spine. 
 
 c ^ Eyes distinctly pointed (conico-acuminate) above ; hind 
 femora delicately incrassate basally, in the 9 nearly twice as 
 long as the pronotum; tegmina and wings abbreviate or 
 wanting in both sexes ; cerci long, distinctly surpassing the 
 infragenital plate. .... Yersinia Saussure. 
 
MANTIDAE — MANTINAE 
 
 17 
 
 c'. Eyes trigonal, scarcely pointed above; hind femora 
 linear, in the $ but little longer than the pronotum ; 
 tegmina and wings fully developed in the ^ , abbreviate in 
 the 9 ; cerci short, scarcely or not surpassing the infragenital 
 plate. ..... Litaneutria Saussure. 
 
 h^. Pronotum much longer than fore coxae; eyes rotundate ; 
 hind femora with no apical spine, 
 c^ Antennae filiform. 
 
 d^. Broadest portion of pronotum far in advance of the 
 middle, the sides in front distinctly tapering ; outer margin 
 of fore femora armed with main spines only. 
 
 e^. Body of $ very elongate; anal membrane of 
 
 tegmina violet. 
 
 Phasmomantis Saussure. 
 
 e^. Body of i moderately elongate; anal membrane of 
 tegmina light colored. 
 f^. Anal and axillary veins of tegmina independent 
 and simple throughout. . . Callimantis Stal. 
 
 f^. Anal and axillary veins of tegmina apically 
 confluent. . . . Stagmomantis Saussure. 
 
 d'^. Broadest portion of pronotum hardly in advance of 
 the middle, the sides in front parallel or subparallel ; outer 
 margin of fore femora armed with numerous distinct spin- 
 ules between the main spines. . Gonatista Saussure. 
 c^. Antennae incrassate beyond the base and thereafter 
 tapering. ..... Brunneria Saussure. 
 
 A '^. Inner margin of upper surface of fore coxae abruptly and 
 considerably dilated at apex. 
 
 h 1. Fore tibiae longer than their apical claw. 
 
 e^. Fore and hind sections of pronotum subequal in length. 
 
 Oligonyx Saussure. 
 c^. Hind section of pronotum twice as long as fore section. 
 
 JBactromantis Scudder. 
 b^. Fore tibiae no longer than their apical claw. 
 
 l^hesprotia Stal. 
 Of these ten genera hardly one contains more than one or two 
 species and all are southern in their range. Litaneutria, how- 
 ever, found only in the west, has three or four species ; the other 
 
GUIDE TO OIITHOPTERA 
 
 3 
 
 genera occur almost exclusively in the Gulf States and two, C'alli- 
 mantis and Bactromantis, are known only from Florida. Yer- 
 sinia has a single species in Eastern Colorado and neighborhood. 
 Nearly or quite all these genera are represented, often much 
 more fully, south of our border, including several of our species. 
 
 Vatinae. 
 
 This subfamily is represented in the United States by only a 
 single genus, Theoclytes Serville, a single species of which occurs 
 along our southern border. 
 
PHASMIDAE 
 
 19 
 
 PHASMIDAE. 
 
 This family is very feebly represented in the United States, 
 only half a dozen different genera with from one to three species 
 each having been detected. These few species, however, repre- 
 sent three of the dozen recognized subfamilies. With the excep- 
 tion of Diapheromera which has a wide distribution, most of the 
 species are found only in the west or the extreme south. One 
 genus is confined to the United States. 
 
 All of our species are apterous, and though, on occasion, the 
 males may run with some rapidity, they are all generally sluggish 
 in movement, and depend for their protection largely on their 
 resemblance to twigs and on the action of their prothoracic 
 glands, which may emit an offensive fluid or spray when the 
 insect is alarmed. Their eggs are dropped loosely and singly on 
 the ground ; they are of very varied structure, covered with an 
 exceedingly hard and often strikingly sculptured shell, and so far 
 as we know continue through the winter, sometimes through a 
 second, before hatching. Our commonest species feeds upon the 
 tough leaves of the oak. 
 
 Subfamilies of Phasraidae. 
 
 A 1. Tibiae not furnished at apex with a sunken areola to receive 
 the base of the tarsi when bent upon them. (The antennae are 
 much longer than the anterior femora and furnished with at least 
 thirty joints, and the median segment is much shorter than the 
 
 metanotum.) Bacunculinae. 
 
 A ^. Tibiae furnished at apex beneath with a sunken areola to 
 receive the base of the tarsi when bent upon them. 
 
 6 1. Antennae many jointed, longer than the fore femora; 
 median segment shorter than the metanotum ; without spines 
 on head, thorax or legs ; anterior segments of abdomen trans- 
 verse, at least in the $ . . . . Anisomorphinae. 
 b^. Antennae with less than twenty joints, shorter than the 
 fore femora ; anterior segments of abdomen much longer than 
 broad. BacilUnae. 
 
 
 1. 
 
20 
 
 GUIDE TO ORTHOPTERA 
 
 Bacunoumnae. 
 
 This is an American group and of the eleven genera recog- 
 nized we have three, which may be distinguished by the folio whig 
 table : — 
 
 Genera of BacuncuUnae. 
 
 (f ^ Hind femora armed beneath on the median line near apex 
 with one or more distinct spines. . Diapheromera Gray. 
 
 a ^. Hind femora unarmed beneath next apex. 
 
 h^. Head, especially in the 9, furnished in front between the 
 eyes with a pair of tubercles or longitudinal rugae, sometimes 
 highly developed; hind femora of $ hardly extending beyond 
 the middle of the fourth abdominal segment, relatively stout ; 
 first joint of hind tarsi of 9 shorter than the other joints 
 
 together . Sermyle Stal. 
 
 b ^. Head unarmed in both sexes ; hind femora of 9 reaching 
 the end of the fourth abdominal segment, relatively slender ; 
 first joint of hind tarsi of 9 about equal to the other joints 
 together. ..... JBacunculus Burmeister. 
 
 The genera have been but little studied in this country. Dia- 
 pheroma is represented nearly everywhere and has sever '\1 species, 
 probably including some as yet undescribed. The othei genera 
 occurs only in the Gulf States, with one or two species each. 
 
 Anisomorphinae. 
 
 This also is an American group, with about half a dozen known 
 genera of which we possess two. 
 
 ii 
 
 II r 
 I) ^ 
 
 Genera of Anisomorphinae. 
 
 ^. Mesothorax twice as long as the prothorax ; basal joint of 
 antennae but little longer and little stouter than the second. 
 
 Atiisomorpha Gray. 
 a ^ Mesothorax no longer than prothorax ; basal joint of antennae 
 fully twice as long and, especially on apical half, twice as stout 
 as the second joint Timema Scudder. 
 
 a 
 
PHASMIDAE — BACILLINAE 
 
 Several nominal species of Anisomorpha occur in the extreme 
 south and especially the southeast, but they have not yet been 
 carefully compared. Timema occurs in central California, with a 
 single species, and is not otherwise known. 
 
 Bacillixae. 
 
 This small subfamily of only four recognized genera is repre- 
 sented by a single genus. Bacillus Latreille, two species of which 
 are known from Colorado and Arizona. 
 
 ■t.i 
 f 
 
 m 
 
 ■■* 
 
22 
 
 GUIDE TO ORTHOPTERA 
 
 ACRIDIIDAE. 
 
 Only four of the nine subfamilies of Acridiidae are represented 
 in the United States, although three others occur in more 
 southern portions of America. Yet on the whole this family is 
 better developed in our district than is any other and contains 
 some genera, especially Melanoplus, of very great extent. 
 
 iSnhfamiliea of Acridiidae. 
 
 A^. Claws without arolium; pronotum extending over the 
 
 abdomen ; tegraina lobiform. .... Tettiginae. 
 
 A ". Claws furnished with an arolium ; pronotum extending at 
 
 most over the extreme base of the abdomen ; tegmina generally 
 
 well developed, but sometimes abbreviate, lobiform or wanting. 
 
 b^. Presternum without marked prominence (sometimes with 
 
 an obtuse tubercle); arolium usually small or rather small. 
 
 c '. Face retreating and angulate at meeting with vertex ; 
 
 foveolae generally well developed ; fastigium usually but 
 
 little declivent ; eyes generally longer than the infraocular 
 
 portion of the genae ; mediastinal and scapular fields of 
 
 tegmina generally regularly reticulate by transverse veins. 
 
 Tryxalinae* 
 c^. Face nearly or quite vertical, and rounded at meeting 
 with vertex ; foveolae generally obscure ; fastigium usually 
 strongly declivent; eyes 'jfenerally shorter than the infra- 
 ocular portion of the genae ; mediastinal and scapular fields 
 of tegraina generally very irregularly reticulate. 
 
 Oedipodinae* 
 h^. Prosternura armed anteriorlv with a distinct conical or 
 cylindrical spine. ...... Acridiinae. 
 
 ♦ These two subfamilies are occasionally difficult to distinguish, and I accordingly 
 give here, in an English form, the detailed distinctions laid down by Stal (Rec. 
 Orthopt., i, 6-7). 
 
 Fastigium of vertex not or slightly, rarely strongly, declivent ; front trending more 
 or less, generally strongly and obliquely, backward ; eyes generally longer than the 
 infraocular portion of the genae, rarely shorter or of equal length, and in these cases 
 the front is very oblique ; antennae sometimes ensiform, inserted between the middle 
 or below the middle (inter medium vel pone medium) of the eyes. M etazona rarely 
 longer, generally shorter than the prozona, the hind margin rarely rectangulate or 
 
ACRIDIDAE — TETTIGINAE 
 
 23 
 
 Tkttioinak. 
 
 Of the seven larger groups into which Bolivar divides this 
 subfamily, we possess only two neighboring ones, though two 
 otliers occur directly south of us. 
 
 i,i 
 
 Groitjys of l^ettiginae. 
 
 a ^ Anterior femora more or less compressed, carinate above ; 
 antennae with 12-14 joints. .... Tettigiae. 
 a '. Anterior femora distinctly and broadly sulcate above ; anten- 
 nae with 16-22 joints JJatrachidcae. 
 
 ' (■ 
 
 subrectangulate, generaUy obtuse, the median carina not cristate ; sulci of tlie pro- 
 zona either obUterated or interrupted on the disk, the posterior of these not or but 
 very slightly recurved, never confluent with the principal sulcus [i. e., that separat- 
 ing the prozona and metazona] ; lateral lobes generally narrowed in passing down- 
 ward, rarely longer than deep, with parallel anterior and posterior margins ; tegmina 
 generally lacking the intercalary vein, the anal and axillary veins generally united at 
 a greater or less distance from the base ; arolia generally of medium size or large ; 
 metasternal lobes not or but slightly separated Tryxalinas. 
 
 Fastigium of vertex generally strongly declivent, slightly or very slightly prom- 
 inent ; front not or very slightly oblique, generally vertical or subvertical ; eyes 
 generally small or rather nmall, rarely a little longer than the inf raocular portion of 
 the genae; antennae linear or sublinear, generally inserted above the middle of the 
 eyes, sometimes al nost above the eyes themselves (plerumque ante medium, inter dum 
 fere ante oculos). Fronotum furnished with a median carina often wholly or partly 
 cristate, the metazona typically longer than the prozona, the hind margin generally 
 rectangulate or 8iibrectar„'ulate, the sulci of the prozona either interrupted, or the 
 anterior sulcus alone continuous and bisecting the carina or crest, rarely both con- 
 tinuous, the posterior sulcus recurved and frequently confluent with the principal 
 sulcus; lateral lobes transverse [i. e., longer than deep] or subtrans verse, the front 
 and hind margins parallel or subparallel ; tegmina generally furnished with an inter- 
 calary vein, the anal and axillary veins frequently running free to the margin ; hind 
 femora generally broad, aM above nrd below compressed; arolia small; metasternal 
 lobes generally somewhat distant Oedipodinae. 
 
 To this may be added the following from Hrunner (R^v. syst. Orthopt., 102, note) :— 
 
 Tlie distinction between the Tryxalinae and Oedipodinae is somewhat arbitrary and 
 rests on individual perception (I'estimation personelle). When, however, the rel tive 
 position of the front and the vertex [on which he rests his tabular distinction] 1 ,aves 
 one in doubt, the presence or absence of foveolae may guide one, Tryxalinae having 
 in this case very distinct foveolae, while in the Oedipodinae they are effaced. More- 
 over the species here taken with consideration, when they are Tryxalinae, have the 
 mediastinal and scapular areas of the tegmina regularly reticulate by transverse 
 veinlets ; while, if they are Oedipodinae, these areas are always very irregularly 
 reticulated. 
 
 See also McNeill's paper on Tryxalinae (pp. 181-182) for a tabulation of differences 
 between the Tr^ JLalinae and Oedipodinae. 
 
 I'l 
 
 P 
 
 : S 
 \i 
 
I! 
 
 24 
 
 GUIDE TO ORTHOPTERA 
 
 Tettig-iae. 
 
 We possess representatives of half the known genera of this 
 group, the other genera belonging mostly to the Old World. 
 
 t ; 
 
 ■' i 
 
 Genera of Tettigiae. 
 
 rt V Median carina of pronotum cristiform; superior lateral sinus 
 
 (at insertion of tegniina) shallow, not nearly so deep as the 
 
 inferior sinus. Nomotettix Morse. 
 
 rt*. Median carina of pronotum low; superior lateral sinus of 
 
 same nearly as deep as the inferior sinus. 
 
 b \ Vertex of f astigium generally broader than the eyes, pro- 
 jecting beyond them, generally angulate anteriorly. 
 
 Tettix Charpentier. 
 b ^. Vertex of fastigium narrower than the eyes and not pro- 
 jecting beyond them, usually truncate anteriorly. 
 
 Paratettix Bolivar. 
 All these genera are widely distributed in our country, Tettix 
 
 being the most numerous in species, followed by Paratettix. 
 
 Monotettix is confined to North America. 
 
 Batrachideae. 
 
 Only two of the seven known genera of this group occur in the 
 United States, though three others are found in America. 
 
 I 
 
 Genera of Batrachideae. 
 
 a^. Body plump; dorsum of pronotum tumid, smooth or slightly 
 punctate, with no antehumeral lateral carinae. Paxilla Bolivar. 
 «^. Body more slender; dorsum of pronotum more or less 
 concave between the carinae, marked with longitudinal rugae and 
 with conspicuous antehumeral lateral carinae. 
 
 Tettigidea Scudder. 
 1 Paxilla is monotypic and known only from Georgia ; Tettigidea 
 is wide spread, extending also to Central and South America, and 
 has several species in the United States. 
 
 u 
 
< ! 
 
 ACRIDIIDAE — TRYXALINAE 
 
 25 
 
 Tryxalinae. 
 
 This subfamily has a varied development in the United States, 
 where at least thirty-five genera occur, none of them very rich in 
 species, though most of the genera are endemic. 
 
 The following table to separate them is copied from McNeill's 
 just pubHshed Revision of our Tryxalinae, excepting as it is 
 altered to correct some slight clerical errors, to change some 
 generic names, to include the genera purposely omitted by him, 
 which seem to me (contrary to an opinion formerly expressed — 
 Psyche, v, 431 seq.) to belong here, and to omit one genus 
 belonging elsewhere. The order and alliance of genera in this 
 table (especially as here altered) leave much to be desired, but 
 the construction of a substitute would too long delay the publica- 
 tion of this Guide, which has been awaiting the appearance of 
 Professor McNeill's paper for its completion. 
 
 Genera of Truxalinae, 
 
 a ^ Head distinctly longer than the pronotum ; eyes very oblique, 
 nearly horizontal ; metasternal lobes contiguous. 
 
 h^. Tegmina very much shorter than the abdomen; spines of 
 posterior tibiae minute and numerous, about twenty-five. 
 
 Rhadinotatum McNeill. 
 
 b ^. Tegmina exceeding the abdomen ; spines of posterior 
 
 tibiae less numerous, about sixteen. Achurum Saussure. 
 
 a \ Head 3ometimes equalling, never exceeding, the pronotum 
 
 in length. 
 
 b^. Head ascending, more or less conical, the occiput elevated 
 considerably above, or inclined upward at a distinct angle with, 
 the pronotum. 
 
 c^. Head as viewed laterally strongly ascending or greatly 
 raised above the pronotum. 
 
 d^. Upper half of head markedly conical; face below 
 fronto-vertical process subperpendicular ; antennae more 
 than half as long as tegmina. 
 
 e '. Metazona much longer than prozona, with an ele- 
 vated crest. . . . Acrolophitus Thomas. 
 
26 
 
 GUIDE TO ORTHOrXERA 
 
 ■ 
 
 & '■! 
 
 e '^. Metazona barely longer than prozona, only slightly 
 
 carinate. .... Acrocara Scudder. 
 
 d^. Upper half of head only feebly conical, more or less 
 
 tumid; face below fronto- vertical process distinctly 
 
 oblique ; antennae less than half as long as tegmina. 
 
 e^. Vertex of the head forming an acute angle with 
 
 the face ; tempora nearly plane triangular spaces. 
 
 Bootettix Bruner. 
 e ■^. Vertex of the head forming an obtuse angle with 
 the face ; tempora impressed, trapezoidal. 
 
 Ligurotettix McNeill, 
 c ^. Head as viewed laterally less, though distinctly, ascend- 
 ing. 
 
 d^. Antennae much longer than the face ; lower margui 
 of lateral lobes anteriorly excised, broadly exposing the 
 pleura. .... Pedioscirtetes Thomas. 
 
 d'^. Antennae shorter than the face; lower margin of lat- 
 eral lobes nearly horizontal throughout, scarcely exposing 
 the pleura. .... Gymnes Scudder. 
 
 b '^. Head elevated above the pronotum at most only by the 
 feeble tumescence of the occiput, and not otherwise forming 
 any angle with the pronotum, 
 
 c^. Mesosternal lobes separated by a space almost linear in 
 
 its narrowest part; metasternal lobes approximate in both 
 
 male and female. .... Mermiria Stal. 
 
 c '^. Mesosternal lobes separated by a space never much longer 
 
 than broad, generally broader than long ; metasternal lobes 
 
 rarely approximate in tlie male, very rarely in the female. 
 
 d ^ Antennae triquetrous, or strongly depressed at the base 
 
 and distinctly acuminate ; pronotum with the lateral lobes 
 
 vertical and straight and the lateral carinae not at all 
 
 sinuate ; median carina of the pronotum generally cut 
 
 much behind the middle ; the disk plain and unstriped. 
 
 e ^ Tegmina exceeding the abdomen considerably in 
 
 both sexes (in some large females but little); lateral 
 
 carinae of the pronotum quite as distinct as the median ; 
 
 spurs at the apex of the posterior tibiae on the inner 
 
 side about equal. . . . Tryxalis Fabricius. 
 
ACRIDIIDAE - TRYXALINAE 
 
 27 
 
 e\ Tegmina not exceeding the abdomen even in the 
 male. 
 
 f\ Lateral foveolae of the vertex linear and distinct ; 
 tegmina quite unspotted ; inner spurs of posterior 
 tibiae equal. . . . ^Tapaia McNeUl. 
 
 / \ Lateral foveolae less distinct and subtriangular or 
 obsolete ; tegmina more or less distinctly spotted as 
 well as the face and pronotum ; inner tibia' spurs 
 very unequal, the longer but little shorter than the 
 first tarsal joint. . . . Qpeia McNeUl 
 
 d\ Antennae never triquetrous, sometimes plainly de- 
 pressed basally and acuminate, most commonly filiform, 
 rarely clavate; pronotum with the lateral lobes less dis- 
 tinctly vertical, with the lateral carinae very rarely quite 
 straight, but gently or strongly sinuate near the middle; 
 median carina of the pronotum generally cut in or not far 
 behind the middle. 
 
 e \ Tempora either foveolate or plane, not visible from 
 above. 
 
 /^ Scutellum of the vertex with a distinct median 
 carina, which is usually a coarse raised line stronger 
 anteriorly. 
 
 ff\ Spurs on the inner side of posterior tibiae very 
 unequal, the apical spur being twice as long as the 
 other. 
 
 h\ Antennae depressed basally and distinctly 
 acuminate; no supplementary carinae present 
 either upon the head or disk of the pronotum. 
 
 Pedeticum McNeill. 
 h 2. Antennae depressed apically and somewhat 
 clavate; supplementary carinae accompanying 
 the median carina upon either the head or the 
 disk of the pronotum. . Eritettix Bruner. 
 
 g ^. Spurs of the inner side of the posterior tibiae 
 
 about equal in length. 
 
 h \ Spines on the exterior margin of the pos- 
 terior tibiae 19-21. . . Syrbida Stal. 
 
28 
 
 GUIDE TO ORTHOPTERA 
 
 
 iiti 
 
 h 2. Spines on the exterior margin of the posterior 
 tibiae not exceeding 15. 
 
 »^. Median carina of the pronotura cut in the 
 middle by the principal sulcus. 
 J^. Color striped distinctly or obscurely; 
 scapular area of the tegmina broader than 
 the mediastinal area. 
 
 k ^. Lateral carinae of the pronotum obso- 
 lete ; median carina accompanied by a 
 supplementaiy pair upon the disk. 
 
 Amphitomus McNeill. 
 k ^. Lateral carinae of the pronotum pres- 
 ent; median carina not accompanied by 
 supplementary carinae on the disk. 
 
 Acentetus McNeill. 
 J ^. Color plain ; scapular area of the tegmina 
 not broader than the mediastinal area. 
 
 Amblytropidia Stal. 
 * '^. Median carina of the pronotum cut much 
 behind the middle by the principal sulcus. 
 
 Chloealtis Harris. 
 /^ Scutellum of the vertex with no distinct median 
 carina. 
 
 g^. Median carina of the pronotum cut much 
 behind the middle by the principal sulcus. 
 
 h^. Posterior margin of the metazona angulate ; 
 tegmina usually much shorter than the abdomen, 
 with the ulnar area not very much wider than the 
 discoidal area. . Dlchromorpha Morse. 
 
 h"^. Posterior margin of the metazona rounded 
 or not distinctly angulate ; tegmina not much 
 shorter than the abdomen, with the ulnar area 
 very wide and several times as broad as the dis- 
 coidal area. . . Cliiiocephalus Morse. 
 g"^. Median carina cut near the middle by the 
 principal sulcus. 
 
 !:i 
 
ACRIDIIDAE — TR YXALINAE 
 
 Orphiila Stal. 
 
 h ^ Hind tibiae never red. 
 h ^. Hind tibiae red. 
 
 i^. Antennae depressed basally, long and 
 acuminate ; face strongly oblique. 
 
 Alpha Brunner. 
 i ^. Antennae filiform ; face moderately oblique 
 in the male, subperpendicular in the female. 
 
 Phlihostroma Scudder. 
 e^. Tempora plain or foveolate, visible from above (in 
 Mecostethus small or minute, tiiangular and basal ; in 
 this case the intercalary vein is very strong) . 
 /^ The vertex is not bounded in front by a raised 
 line and, viewed from the side, does not form an 
 angle with the face; the tempora are very faintly 
 impressed spaces, which are strongly declivent ; inter- 
 calary vein of tegmina wanting. 
 g \ Tegmina plain ; lateral carinae of the pronotum 
 very little sinuate. . . Bo<ypedon Thomas. 
 g^. Tegmina distinctly spotted; lateral carinae of 
 the pronotum strongly sinuate. 
 
 PUctrotettix McNeill. 
 p. Vertex bounded in front by a raised line ; viewed 
 from the side it forms a more or less distinct angle 
 with the face, or it is not at all angulate. 
 
 g ^ Median carina of the pronotum high and sharp, 
 cut by the principal sulcus m or plainly in front of, 
 the middle; intercalary vein very strong; apical 
 spurs on inner side of posterior tibiae subequal. 
 
 Mecostethus Fieber. 
 g'^. Median carina of the pronotum rarely cut 
 plainly in front of the middle, and in this case it is 
 not high and sharp, or the intercalary vein is not 
 strong. (In Stirapleura and Psoloessa the inter- 
 calary vein is present but not very strong and the 
 inner apical spurs of the posterior tibiae are very 
 unequal). 
 
 mi 
 
30 
 
 GUIDE TO ORTHOPTERA 
 
 h^. Temporae longate, narrow, from two to four 
 times as long as broad ; apical spur on inner side 
 of posterior tibiae much less than twice as long 
 as the one beside it. 
 i\ Antennae filiform. 
 j^. Median carina of the pronotum cut in 
 the middle ; posterior margin of the prono- 
 tum plainly more angulate than the anterior. 
 
 Stenobothrus Fischer. 
 
 j^. Median carina of the pronotum cut 
 
 plainly behind the middle ; posterior margin 
 
 of the pronotum not more angulate than the 
 
 anterior. . . Jiruneria McNeill. 
 
 i\ Antennae clavate. 
 
 Gomphocerus Thunberg. 
 h 2, Tempora short, little longer than broad or, 
 when twice as long as broad, the apical spur on 
 the inner side of the posterior tibiae is twice as 
 long as the one beside it. 
 
 I ^. Posterior margin of the metazona straight 
 or just perceptibly angulate ; pronotum shorter 
 than the head, which is very large. 
 
 Etipnigodes McNeill. 
 
 i ^. Posterior margin of the metazona distinctly 
 
 or strongly angulate ; pronotum never shorter 
 
 than the head, generally plainly longer (viewed 
 
 from above). 
 
 j \ Median carina of the pronotum cut by 
 
 principal sulcus behind the middle ; vertex 
 
 of the head destitute of a median carina; 
 
 posterior margin of the metazona generally 
 
 veiy obtusely angulate or rounded. 
 
 k^. Generally larger forms. Median 
 carina of prozona cut by the transverse 
 sulci; foveolae of male vertex triangular 
 
 hind tibiae blue ; lower 
 
 or subtrianorular 
 
 I* • 
 
"J 
 
 
 an 
 
 % 
 
 -se ' 
 
 
 lar I 
 
 
 '■er i 
 
 
 
 
 r 
 
 
 5 
 
 
 i 
 
 ~ 
 
 ■" 
 
 
 
 
 ACRIDIIDAE — TRYXALINAE 
 
 apical spur of inner side of same much 
 less than half as long again as upper spur. 
 
 Aulocara Scudder. 
 k"^. Generally smaller forms. Median 
 carina of prozona not cut by the trans- 
 verse sulci ; foveolae of male vertex sub- 
 equal, rhomboidal ; hind tibiae red ; lower 
 apical spur of inner side of same fully half 
 as long again as upper spur. 
 
 Ageneotettix McNeill. 
 J^. Median carina of the pronotum cut by 
 principal sulcus more or less plainly in front 
 of the middle, never behind ; summit of the 
 head furnished with a more or less distinct 
 median carina, which sometimes extends 
 nearly or quite to the tip of the vertex, and 
 is most distinct on the posterior part of the 
 scutellum; posterior part of the metazona 
 strongly angulate. 
 k ^. Lateral lobes of the pronotum fur- 
 nished with a single or double series of 
 short, irregular, and sometimes indistinct 
 carinae which extend from about the 
 middle of the anterior margin toward or 
 to the upper posterior angle ; also with a 
 second more distinct, low, broad, light- 
 colored carina which extends from the 
 middle of each lobe toward the lower 
 posterior angle; sometimes this carina is 
 distinct only at the anterior end; face 
 nearly perpendicular, rarely very mod- 
 erately inclined ; frontal costa sulcate 
 throughout, acuminate at the vertex and 
 regularly divergent below. 
 
 Stirapleura Scudder. 
 k". Lateral lobes of the pronotum desti- 
 tute of carinae ; face distinctly and con- 
 
 i 
 
 r, 
 
 li 
 
I I 
 
 I 
 
 GUIDE TO ORTHOPTERA 
 
 siderably oblique ; frontal costa not 
 sharply acuminate above and scarcely 
 sulcate at any point. Paoloessa Scudder. 
 Excepting Mermiria, the first thirteen of these genera, as 'w ell 
 as Acentetus, Amblytropidia, Clinocephalus, I^Mibostroma, Plec- 
 trotettix and Bruneria, or more than half the total, are only 
 known in our country by single species ; the others have from 
 two to six each, and Orphula probably more than that. Orphula 
 appears to be the only genus spread over the entire country ; some 
 are so far known only from a single state, as Rhadinotatum 
 and Pedeticum from Florida, Acentetus from Colorado, Acrocara 
 from Idaho and Pedioscirtetes from Nevada. Clinocephalus is 
 confined to the Atlantic States, Tryxalis (Metaleptea Brunner) 
 to the region east of the Great Plains ; Psoloessa is known only 
 from the extreme south, from Texas westward, Achurum and 
 Bootettix in the extreme southwest. The great plains east of 
 the Rocky Mts. are characterized by Opeia, Phlibostroma (Beta 
 Brunner), Boopedon and Acrolophitus, while they share with 
 the region to the west of them, as far as the Sierras or even 
 the coast, the genera Stirapleura (Pseudostauronotus Brunner), 
 Alpha, Amphitornus, Mermiria, Aulocara (Oedocara Scudder, 
 Coloradella Brunner) and Ageneotettix (Eremnus McNeill). 
 Gomphocerus is found in the same region, but only in its northern 
 portions. Chloealtis, Dichromorpha, Mecostethus and Steno- 
 bothrus are also found in the northern half of our country (and 
 in Canada) from the Atlantic to the Rocky Mts. or even to the 
 Sierras, while an equivalent southern district is inhabited by 
 Amblytropidia, Syrbula and Eritettix. Finally, the genera Liguro- 
 tettix, Gymnes, Napaia, Plectrotettix (Plectrophorus McNeill), 
 Bruneria (Brunneria McNeill) and Eupnigodes (Pnigodes Mc- 
 Neill) are confined to the Pacific coast. 
 
 Oedipodixae. 
 
 This is one of the prevailing groups of Acridiidae in the United 
 States, and especially in the western half of the continent. Two 
 of the tribes occur, the Thrincini being unknown. Our genera 
 are in large part indigenous. 
 
ACRIDIIDAE — OEDIPODINAi: 
 
 33 
 
 fV^' 
 
 
 Tribes of Oedipodinae. 
 a 1. Outer margin of hind tibiae with no apical spine next the 
 
 sP'irs Oedlpodini. 
 
 a\ Outer margin of hind tibiae with an apical spine next the 
 sP^rs Eremobiini, 
 
 Oedlpodini. 
 This tribe is very varied in type, no less than twenty-three 
 genera occurring in the United States, out of the sixty odd 
 recorded by Saussure from the whole world. All our genera are 
 neogeic and in large part confined to the United States or shared 
 only with Mexico. 
 
 Genera of Oedipodmi. 
 A ^ Interspace between the metasternal foramina linear, or dis- 
 tinctly longer than broad in the male, narrower than the inter- 
 space between the mesosternal l6bes in the female. 
 
 b ^ ^e^ina subcoriaceous, densely and irregularly reticulate, 
 only at the apex remotely (but scarcely regularly) areolate ; 
 the intercalary vein nearer the median than the ulnar vein} 
 wings brightly colored, red or yellow at base ; none of the 
 veins incrassate and no costal stigma; ulnar area not notice- 
 ably dilated Arphia Stal. 
 
 b^. Nearly the whole apical half of the tegmina, at least in the 
 discoidal field, membranaceous, traversed by straight veinlets ; 
 the intercalary distant from the median vein ; wings with 
 dihite coloring, nebulous ; the veins next the costal margin and 
 frequently, in the male, the median vein incrassate ; costa with 
 a dusky stigma ; ulnar area dilated, with remotely scalariform 
 venation. 
 
 c\ The intercalary vein of the tegmina running midway 
 between the median and ulnar veins, only apically a little 
 approximating the former; veins of the wings slightly or 
 scarcely incrassate. . . Chortophaga Saussure. 
 
 c ^. The intercalary vein of the tegmina distinctly nearer the 
 ulnar than the median vein ; the veins of the wings referred 
 to (under ¥ ) distmctly incrassate in the male. 
 
 i 
 
34 
 
 GUIDE TO ORTHOPTERA. 
 
 
 
 iP. Antennae very short, stout; head compressed, the 
 fastighim prominent, angulate. Chimarocephala Scudder. 
 d^. Antennae rather long, slender; head subtumid, rotun- - , 
 date, the fastigium in the female anteriorly obtuse. 
 
 Encoptolophus Scudder. 
 A '^. Interspace between the metasternal foramina rather broad, 
 in the male quadrate, in the female transverse. 
 
 b^. Lateral canthi of the metazona traversing the principal |.,,iv'^' 
 sulcus (where they are frequently cristulate or rugose), not 
 intersected by that sulcus (or only in individual cases); princi- 
 pal sulcus more or less obsolete or delicate in the lateral lobes. 
 c 1. Carina of pronotum conspicuous ; tegmina with moder- 
 ately dense reticulation, at least the apical third remotely and 
 quadrately reticulated. 
 
 (U. Smaller forms. Pronotum not rugose; wings sub- 
 vitreous, the area of the median forks obscurely divided or 
 with only one row of areoles. . . Camnula Stal. 
 d'^. Larger forms. Pronotum rugose ; wings colored, the 
 area of the median forks divided for the larger part by a 
 spurious vein, and so biareolate. Hippiscus Saussure. 
 
 c ^. Carina of pronotum very slight ; nearly the whole of the 
 tegmina densely reticulate and coriaceous, only membrana- 
 ceous or subvitreous at extreme tip. 
 
 d^. Less stout ; mesosternum only a little broader than the 
 head ; tegmina extending well beyond tip of abdomen, the 
 intercalary vein distinct throughout and everywhere very 
 much nearer the median than the ulnar vein; transverse 
 fascia of wings with no subcostal taenia ; posterior process 
 of pronotum acutangulate. . . Leprus Saussure. 
 
 d^. Exceptionally stout; mesosternum fully half as broad 
 again as head ; tegmina leaving tip of abdomen exposed, 
 the intercalary vein more or less obscure proximally and 
 only a little nearer the median than the ulnar vein ; trans- 
 verse fascia of wings with distinct subcostal taenia; 
 posterior process of pronotum rectangulate. 
 
 Agymnastus Scudder. 
 
ACRIDIIDAE — OEDIPODINAE 
 
 35 
 
 not 
 
 b . Lateral canthi of the metazona typically intersected by the 
 pnncipal sulcus, often vanishing anterior to that; principal 
 sulcus distinctly developed on the lateral lobes. 
 
 c 1. Pronotal carina entire or intersected by but one sulcus. 
 clK Pronotum with a very high foliaceous crest. 
 
 Tropiclolophus Thomas. 
 d^. Pronotum crested or carinate, but not excessively. 
 e K Body slender, compressed ; lateral foveolae of the 
 head trigonal, short. 
 f\ The whole of the apical third of the tegmina, 
 even next the costal margin, membranaceous. 
 g ^ The intercalary vein of the tegmina very dis- 
 tinct, retroarcuate, rather remote from the median 
 vein, nearly intermediate between it and the ulnar ; 
 the anterior intercalary area, therefore, rather broad ; 
 wings conspicuously marked, but not banded. 
 
 Dissosteira Scudder. 
 g \ The intercalary vein of the tegmina more or 
 less distinct, hardly arcuate, nearer the median 
 than the ulnar vein ; the anterior intercalary area, 
 therefore, nan-ow, densely coriaceous ; wings with a 
 fuscous arcuate median band. 
 
 Ai. Tegmina rather broad, the intercalary vein 
 more or less flexuous ; pronotal crest anteriorly 
 elevated, profoundly intersected, arcuate on the 
 metazona as seen laterally. 
 
 Spharagemon Scudder. 
 h ^ Tegmina very narrow, the intercalary vein 
 straight, subobsolete ; pronotal crest low, straight 
 as seen laterally, not deeply intersected. 
 
 Scirtettica Saussure. 
 /2. The apical membranaceous portion of the tegmina 
 ' oblique, the costal margin coriaceous. 
 
 Lactista Saussure. 
 Body rather stout; lateral foveolae of the head 
 
 lanceolate. 
 
 Tomonotus Saussure. 
 
36 
 
 GUIDE TO ORTHOPTERA 
 
 li 
 
 rr 
 
 c'^. Pronotum or pronotal carina twice intersected by trans- 
 verse sulci. 
 
 d^. Pronotal carina percurrent, not obliterated between 
 the sulci. 
 e ^ Pronotum cristate anteriorly ; tegmina generally 
 membranaceous over most of the apical half. 
 /^. Lateral lobes of the pronotum posteriorly rec- 
 tangulate or obtusangulate, the posterior margin 
 descending obliquely forward ; their metazonal por- 
 tion, posterior to the typical sulcus, thereby narrowed 
 inferiorly ; prozona posteriorly acutellate on disk ; 
 vertex of head with a transverse cannula on either 
 side next the eyes. . . Derotmema Scudder. 
 /'*. Posterior portion of the lateral lobes of the pro- 
 notum of equal width throughout. 
 
 g 1. Inferior margin of lateral lobes oblique, the pos- 
 terior angle thereby acute or posteriorly produced. 
 h ^ Lateral canthi of the metazona terminating 
 at the principal sulcus, or, if continued, it is in a 
 different course ; prozona posteriorly scutellate on 
 disk ; inferior margin of lateral lobes straight, the 
 posterior concave ; tegmina fasciate or maculate ; 
 head tumid, the frontal costa moderately con- 
 stricted. . . . Mestobregma Scudder. 
 h '■^. Lc'.teral canthi of the metazona acute, passing 
 in the sa^ue course beyond the principal sulcus. 
 i ' . Disk of prozona not posteriorly scutellate ; 
 inferior margin of the lateral lobes straight 
 or arcuate, the posterior concave, the angle 
 slightly produced posteriorly ; frontal costa of 
 head very strongly compressed ; proximal half 
 of tegmina densely coriaceous. Psinidia Stal. 
 i^. Disk of prozona more or less distinctly 
 scutellate posteriorly ; lower margin of the 
 lateral lobes straight and oblique, the posterior 
 margin nearly straight, the angle produced 
 
 \^ 
 
 ■»» 
 
ACRIDIIDAE — OEDIPODINAK 
 
 37 
 
 
 ^/^ 
 
 
 
 y 
 
 inferiorly ; head narrow, its frontal costa mod- 
 erately constricted ; tegmina densely reticulate, 
 fasciate on the costal margin, onlj'^ the distal 
 third membranaceous. Conozoa Saussure. 
 
 // ^. Inferior margin of lateral lobes horizontal, but 
 anteriorly oblique, the posterior angle rounded rec- 
 tangulate ; disk of prozona scarcely or not scutel- 
 late posteriorly, the distal third of the tegmina 
 membranaceous. 
 
 /i\ Radiate veins of anal field of wings normal. 
 
 Trimerotropis Stal. 
 •'" h^. Radiate veins of anal field of wings dis- 
 
 tinctly incrassate. . Circotettix Scudder 
 
 e^. Pronotum delicately carinulate; tegmina densely 
 coriaceo-reticulate, only the distal fourth membrana- 
 ceous. .... Iladrotettix Scudder. 
 
 d^. Pronotal carina obliterated between the sulci. 
 
 e \ Only the proximal third of tegmina densely reticu- 
 late and coriaceous ; intercalary vein distinctly devel- 
 oped. ..... Anconia Scudder. 
 
 c*. Fully the proximal two-thirds of tegmina densely 
 reticulate and coriaceous; intercalary vein lacking or 
 indistinct. .... Meliastus Saussure. 
 
 The richest of these genera are Hippiscus with nearly forty 
 species, Arphia and Trimerotropis, each with about twenty, Mes- 
 tobregma (Trachyrachys Scudder) with eight or ten, and Sphara- 
 gemon with nearly as many ; all these genera occur everywhere, 
 excepting Mestobregma, which is found only in the west, where 
 the others are also more numerous in species. Circotettix with 
 about half a dozen species occurs only in the north, but from 
 Atlantic to Pacific. Other genera which range over the whole 
 country or nearly so are Chortophaga and Dissosteira with two 
 or three species each. Chimarocephala, Agymnastus and Lac- 
 tista, each with about two species, are confined to California ; 
 Encoptolophus, Scirtettica and Psinidia, with two or three species 
 each, to the eastern half of the continent ; Cammula with a single 
 
w 
 
 38 
 
 GUIDE TO ORTHOPTERA 
 
 I 
 
 
 species ranges across the continent near the northern boundary of 
 the United States ; Leprus with two species occurs in California, 
 Texas and Colorado ; Tomonotus with two species in Texas ; 
 Anconia and Heliastus, with two or three species each, in Cali- 
 fornia, Arizona, southern Utah and New Mexico. The other 
 genera, with from one to four species each but ordinarily with 
 only one or two, are confined to the high plateau region of the 
 western Cordilleras. Nearly half of oui' genera occur also in 
 Mexico, often with more numerous species. Other uncharacter- 
 ized genera also occur in our territory. 
 
 Eremobiini. 
 Three only out of the fourteen known genera of this tribe 
 occur in the United States, and only one of these is peculiar to it. 
 
 Genera of Eremohiini. 
 
 a ^ Body stout but subcylindric, more compressed than depressed, 
 normal or subnormal ; hind femora normally elongate, much more 
 than half as long as the body, above smooth, simply carinate. 
 b ^. Intraocular space more than twice the breadth of the eyes 
 as seen from above ; pronotum rather gently narrowing from 
 behind forward, sharply carinate, posteriorly truncate, the lat- 
 eral lobes rapidly and greatly narrowdng inferiorly ; tegmina 
 lobif orra, lateral ; wings rudimentary ; hind legs excessively 
 stout, the femora scarcely compressed ; arolia very large. 
 
 Brachystola Scudder. 
 h ^. Intraocular space narrower than the width of the eyes as 
 seen from above ; pronotum rapidly narrowing from behind for- 
 ward, feebly carinulate, with blunt lateral rugae, the lateral lobes 
 subequal in width throughout ; tegmina and wings fully devel- 
 oped ; hind legs normal ; arolia minute. Tytthotyle Scudder. 
 a ^ Body gross, short, subfusiform, more depressed than com- 
 pressed ; hind femora exceptionally broad and only half as long 
 as the body, compressed, above tuberculate and laminato-carinate. 
 
 Ilaldemanella Saussure, 
 Th^se genera are western and particularly southwestern, and 
 have one or two species each, in our territory. 
 
ACRIDIIDAE — ACRIDIINAE 
 ACKIDIINAE. 
 
 39 
 
 This subfamily is richly represented in the United States as 
 compared for instance with Europe, but poorly endowed as com- 
 pared with other parts of the world. The groups found with us 
 appear in the following table : — 
 
 Groups of Acridiinae. 
 
 A\ Hind tibiae furnished above with an apical spine on both 
 sides. 
 
 bK Hind tibiae armed with strong spines, those on the inner 
 margin much longer than those on the outer. TropidonoH 
 b,\ Hmd tibiae armed with moderate spines, of similar length 
 on the inner and outer margins. 
 
 c\ Fastigium of vertex subtriangularly acuminate; frontal 
 costa compressed. 
 
 d\ Pronotum tectiform, the front margin subtriangularly 
 produced, the median carina elevated throughout. 
 
 Taeniopodae. 
 
 d . Pronotum plane above, the front margin truncate or 
 
 emarginate, the median carina lacking on the prozona, but 
 
 httle elevated on the metazona. . . RhomaUae. 
 
 c . Fastigmm of vcitex obtuse ; frontal costa neither com- 
 
 pressed nor sulcate Tropidacres. 
 
 /f . Hihd tibiae with no apical spine on the outer side. 
 b \ Face very oblique ; fastigium of vertex prominent, more or 
 less acuminate. 
 
 -^ Hind tibiae not expanded apically, the outer margins 
 
 rounded. 
 
 Mesopes. 
 
 c\ Hind tibiae expand d apically, the outer margins acute* 
 
 Leptysmae. 
 b . Face nearly verticil ; fastigium of vertex not prolonged, 
 apically obtuse. 
 
 c \ Mesosternal lobes longer than broad, the inner margin 
 
 «*^^^g^^- Acridia. 
 
 c 2. Mesostern, i lobes transverse or equally long and broad, 
 the inner m Vi-gin usually rounded. 
 
II ■■■ 
 
 
 40 GUIDE TO ORTHOPTERA 
 
 <P. Hind tibiae armed on exterior margin with at least 
 nine spines *...... MelanopU. 
 
 (P. Hind tibiae witJi six to eight spines only on the 
 exterior margin. ..... Dactyloti. 
 
 Tropidonoti. 
 
 Our only representative of this group is the genus Dracotettix 
 Bruner, with a superficial resemblance to the Pyrgomorphinae, 
 and of which two species occur in the southern portion of our 
 Pacific coast in California and Arizona. 
 
 Taeniopodae. 
 
 Dictyophorus Thunberg is our only genus, the ivfo .aiown 
 species of which occur in our extreme southern states. 
 
 Rhomaleae. 
 
 A single species of Rhoraalea Burmeister, a tropical genus, 
 occurs in Texas. 
 
 Tropidacres. 
 
 Of the gigantic forms in this group, Tropidacris Scudder is the 
 only one which extends north into our territory; a single speoios 
 is found in Texas and has even been reported as far north s.s 
 Nebraska. 
 
 Mesopes. 
 
 Our only representative of this small group is Pseudopomala 
 Morse, with two or three species in the northern half of our 
 country east of the Rocky Mountains. 
 
 Leptysmae. 
 
 This is an ^Vraerican group, consisting of only two genera, 
 tinguished below. 
 
 (,:s- 
 
 Pi 
 
 •There are occasional individual exceptions to this, -where ashy accidental it 
 were, only eight spines are present on one or both V':''c-.u 
 
 
 ¥ 
 
ACRIDIIDAE - ACRIDIINAE 
 
 41 
 
 Genera of Leptysmae, 
 a^ Head slightly shorter than the pronotum ; fastigium of 
 moderate size, with margins less compressed than in the alternate 
 category. 
 
 a . Head as long as or longer than the pronotum, strongly 
 exserted; fastigmm large, horizontal, noticeably narrowed anterl- 
 orly, the margins compressed, at least before the middle. 
 
 rp, . Leptysma Stal. 
 
 These genera occur in the extreme southern states along the 
 Gulf of Mexico and haye one or two species each. 
 
 Acridia. 
 The only recognized genus is Sohistocerca Stal, with numerous 
 species widely spread oyer the United States. The species need 
 careful reyision. 
 
 Melanopli. 
 This group has its highest deyelopment in America and espe- 
 mlly m North America; its single Old World genus occurs in 
 the north temperate region of Europe and Asia and is not pecu- 
 har to It but shared with North America, the half dozen genera 
 not found m our territory being exclusively Central and South 
 American. 
 
 Genera of Melanopli. 
 A\ Lateral margins of subgenital plate (last ventral segment) 
 of male, as seen laterally, straight throughout or yery slightly 
 convex, never at all abruptly ampliate at the base. 
 
 b \ Body exceptionally slender ; mesosternal lobes subattin- 
 gent in both sexes ; prozona three times as long as metazona. 
 
 Gymnoscirtetes Bruner. 
 b . Body not exceptionally slender ; mesosternal lobes in both 
 sexes so widely separated that the interspace between them is 
 at most twice as long as broad ; prozona not more than twice 
 as long as metazona. 
 
 c 1. Interspace between mesosternal lobes of female decidedly 
 transverse, sometimes twice as broad as long ; of male some- 
 
42 
 
 GUIDE TO ORTHOPTERA 
 
 times transverse, sometimes quadrate or subquadrate ; teg- 
 mina lobiform, linear, or wanting. 
 
 (P. Apical tubercle of subgenital plate small, extending 
 but a short distance beyond the supraanal plate ; cerci of 
 male abruptly narrowed before the middle by excision of 
 the inferior margin, the apical half narrow ; lateral carinae 
 of pronotum wholly wanting. Phaedrotettix Scudder. 
 
 d'^. Nearly the whole subgenital plate forming a blunt 
 conical tubercle projecting some distance beyond the 
 tnpraanal plate ; cerci of male forming broad, apically 
 c zed, subfalcate laminae ; lateral carinae of pronotum 
 mo or less distinct. . . Conalcaca Scudder. 
 
 c . Interspace between mesosternal lobes of female gener- 
 ally longer than broad, sometimes quadrate, rarely feebly 
 transverse ; of male never at all transverse ; tegmina 
 variable. 
 
 d^. Tegmina never fully developed, rarely as long as the 
 pronotum, lateral and ovate or linear, or wholly wanting ; 
 hind margin of pronotum distinctly truncate ; fore and 
 middle femora of male distinctly more gibbous than in the 
 female. 
 
 e ^ Furcula of male wanting, or forming a pair of 
 brief lobes, at most no longer than broad. 
 f^. Tegmina lobiform ; subgenital plate of male pro- 
 truding beyond the tip of the supraanal plate by less 
 than half the length of the latter ; cerci of male com- 
 pressed, subequal, the tip broad. 
 
 Mhabdotettix Scudder. 
 f'^. Tegmina linear; subgenital plate of male pro- 
 truding beyond the tip of the supraanal plate by 
 much more than half the length of the latter; cerci 
 of male tapering from the base, the tip acuminate. 
 
 Cyclocercus Scudder. 
 c^. Furcula of male consisting of a pair of parallel, 
 attingent, cylindrical processes, generally at least twice 
 as long as broad. . . Paraidemona Brunner. 
 
ACRIDIIDAE — ACRIDIINAE 
 
 43 
 
 d'^. Tegmina fully developed or abbreviate, never much 
 if any shorter than the pronotum ; hind margin of pro- 
 notum distinctly angulate ; fore and middle femora scarcely 
 more gibbous in the male than in the female (except in 
 some species of Campylacantha) . 
 
 e^. Head not prominent, the summit very slightly 
 arched longitudinally ; prosternal spine erect ; furcula 
 of male composed of projecting cylindrical fingers ; sur- 
 face of bodj"^ very feebly pilose. ITi/pochlora Brunner. 
 e^ . Head prominent, the summit strongly arched longi- 
 tudinally ; prosternal spine more or less retrorse ; fm-- 
 cula of male reduced to slight scarcely projecting lobes ; 
 surface of the body rather densely pilose. 
 
 Campylacantha Scudder. 
 A ". Lateral margins of subgenital plate of male suddenly ampliate 
 to a considerable degree at the base ; or if not to a considerable 
 degree, then the entire margin rather strongly convex or sinuate. 
 b^. Subgenital plate of male furnished with a distinct sub- 
 apical tubercle {i. e., one in which the apical margin does not 
 pass through and form a part of the summit of the tubercle, 
 but where it is distinctly separated from the summit) , but not 
 otherwise tumescent (see note under A^ b^). 
 
 c ^. Median carina of pronotum well developed and equally 
 developed throughout, accompanied' on the front of the pro- 
 zona by distinct lateral carinae ; prosternal spine sharply 
 acuminate ; tubercle of subgenital plate directed wholly 
 backward, occupying the middle of the terminal portion of 
 the plate ; furcula distinctly developed. £!otettix Scudder. 
 c •^. Median carina of pronotum feebly developed and gener- 
 ally much more feebly on the prozona than on the metazona, 
 accompanied by no lateral carinae whatever ; prosternal 
 spine bluntly acuminate ; tubercle of subgenital plate directed 
 upward, or upward and backward, occupying the upper 
 extremity of the terminal portion of the plate. 
 
 c?^ Body relatively slender and compressed, not much 
 enlarged at the metathorax, particularly in the male ; disk 
 
44 
 
 GUIDE TO ORTHOPTERA 
 
 [' ! 
 
 \^' 
 
 ! 
 
 i 
 
 < ! 
 
 ! \ 
 
 of the pronotum tectiform,* the prozona not distinguished 
 from the metazona either by its plane or by any lack of a 
 median carina, which latter is generally marked in color ; 
 pronotum fully half as long again as broad ; hind femora 
 long and slender ; apical tubercle of male abdomen prom- 
 inent ; furcula present as distinctly projecting lobes ; ter- 
 minal segments of female abdomen not abbreviated, the 
 ovipositor fully exserted. . Jlesperotettix Scudder. 
 
 d *. Body relatively short and stout, considerably enlarged 
 at the metathorax even in the male; disk of pronotum 
 generally convex transversely ; the prozona slightly and 
 independently tumid with no median carina, thus dis- 
 tinguishing it from the metazona ; f hind femora relatively 
 short and stout ; apical tubercle of male abdomen not very 
 prominent ; furcula scarcely or not apparent ; terminal 
 segments of female abdomen abbreviated, the ovipositor 
 only partially exserted. . . Aeoloplus Scudder. 
 
 b ^. Subgenital plate of male with no distinct subapical tubercle, 
 but often apically prolonged or tumescent. + 
 
 c^. Meso- and metastethium together, in both sexes, no 
 longer or scarcely longer than broad ; metastethium naiTow- 
 ing but little posteriorly, so that the portion behind the 
 metasternal lobes is but little naj-rower than the rest, rarely 
 (in the male) less than three- fourths its width ; cerci of male 
 very simple, subconical, straight ; ovipositor half concealed. 
 
 Bradynotes Scudder. 
 c"^. Meso- and metastethium together, at least in the male 
 and nearly always in both sexes, distinctly longer than the 
 width of the metastethium ; the latter rapidly narrowing 
 posteriorly, so that the portion behind the metasternal lobes 
 is not, or is hardly more than, one half the greatest width of 
 the metastethium ; cerci of male variable ; ovipositor gen- 
 erally fully exserted. 
 
 * This feature is not so apparent in some species as in others. 
 
 t This feature is less marked in some species than in others- 
 
 } There is a minute subapical tubercle in some species of the flabellifer group of 
 Melanoplus, but in these the male cerci are exceptionally broad ; while in the species 
 of the alternate category (^2 j^i) they are very slender and tapering. 
 
ACRIDIIDAE - ACRIDIINAE 
 
 45 
 
 cP. Interspace between mesosternal lobes of male dis- 
 tinctly transverse, * as broad or nearly as broad as the 
 lobes themselves; of the female distinctly or strongly 
 transverse, fully as broad as or (and generally) broader 
 than the lobes ; metasternal lobes of male generally dis- 
 tinctly distant, occasionally approximate ; of the female 
 generally more distant, the interspace in the latter gener- 
 ally as wide as or wider than the frontal costa ; tegmina 
 typically abbreviate. 
 
 e ^. Face almost vertical ; eyes small but prominent and 
 widely distant; pronotum constricted in the middle, 
 with deeply impressed transverse sulci, and the lateral 
 lobes not obliquely truncate apically in front ; distinct 
 lateral carinae. . . . Dendrotettix Riley. 
 e^. Face a little oblique; eyes rather large, not vt^ry 
 prominent and not very distant ; pronotum not, or but 
 feebly, constricted in the middle, with generally feebly 
 impressed transverse sulci, and the lateral lobes obliquely 
 truncate apically on the anterior section. 
 
 Podisma Latreille. 
 d^. Interspace between mesosternal lobes generally longer 
 or much longer than broad in the male, almost never in 
 the least broader than long even when the sides of the 
 interspace are posteriorly divergent ; generally quadrate 
 in the female, but more variable than in the other sex, 
 sometimes as narrow as there, more often subtransverse, 
 occasionally in some brachypterous forms distinctly trans- 
 verse ; in both sexes always distinctly, generally much, 
 narrower than the lobes (except in the females of the cases 
 just cited, where they are barely narrower); metasternal 
 lobes of male generally attirigent or subattingent, rarely 
 only approximate ; of the female less distant than in the 
 alternate category {A'^ b'^ c^ d^)^ generally approximate, 
 or subapproximate, the interspace generally narrower than 
 the frontal costa ; typically the tegmina are completely 
 developed. . 
 
 *In many cases the interspace is truncato-cuneiform or broadly clepsydral, in 
 which cases the breadth is to be measured in the middle. 
 
u 
 
 .1\ 
 
 46 
 
 GUIDE TO ORTHOPTERA 
 
 
 t ff 
 
 [r 
 
 e\ Face almost vertical or a little oblique, its angle 
 with the fastigium rarely less than 75° ; eyes rounded 
 oval, never more (generally less) than half as long again 
 as broad ; portion of metasternum lying behind the lobes 
 transverse, more than twice as broad as long ; tegmina 
 normally present. 
 f^. Fastigium of vertex plane or convex ; eyes sepa- 
 rated widely, the space between them twice as broad 
 as the frontal costa ; pronotum furnished with distinct 
 percurrent lateral carinae ; tegmina abbreviate ; cerci 
 apically acuminate. . Paratylotropidia Brunner. 
 f^. Fastigium of vertex more or less depressed or 
 with elevated lateral margins ; eyes separated nar- 
 rowly, at most but little further apart than the width 
 of the frontal costa ; pronotum with indistinct * or no 
 lateral carinae ; tegmina fully developed or abbreviate ; 
 cerci variable, rarely acuminate apically. 
 g ^. Inferior genicular lobe of hind femora with at 
 least a darker basal spot or transverse band ; cerci 
 of male variable, often enlarging apically. 
 
 h ^ Dorsum of pronotum rarely or never twice 
 as long as the average breadth, generally only 
 half as long again, even in the male, generally 
 constricted more or less in the middle ; antennae 
 even when longest no longer than the bind 
 femora, and only twice as long as the pronotum 
 alone ; face rarely as declivent as in Paroxya ; 
 prozona usually a half longer than the metazona. 
 * ^. Head not large in proportion to pronotum, 
 nor prominent, but little longer than the pro- 
 zona, unless the latter is distinctly transverse ; 
 pronotum in no way subsellate, nor flaring in 
 front ; tegmina, when fully developed, narrow, 
 rarely rather broad, but then very distinctly 
 tapering, more or less tapering in distal half, 
 
 * In a few species tbey are tolerably distinct. 
 
ACBIMIDAE — ACBIDIINAE 
 
 m 
 
 at a distance from the app?: equal to the 
 breadth of the teginina distinctly narrower 
 than the metazona, the intercalaries and cross- 
 veins of the discoidal area relatively numer- 
 ous, at least in the apical fourth and usually 
 throughout, the venation in general sharp and 
 clearly defined, the area intercalata distinctly 
 deP.,.ed by the adjustment of the veins at its 
 distal extremity, the humeral vein straight and 
 apically arcuate, nearly always terminating 
 either on the apical margin or but a short dis- 
 tance before it, running for some distance 
 almost exactly parallel to the costal margin or 
 merging insensibly into it; cerci of male very 
 variable, very rarely styliform, and then the 
 subgenital plate is either exceptionally broad 
 or only moderately narrow, and the apical 
 margin elevated. . . Melanoplus Stal. 
 i'\ Head large in proportion to pronotum, 
 nearly half as long again as the long prozona ; 
 pronotum faintly subsellate, feebly flaring in 
 front to receive the head ; tegmina, when fully 
 developed, broad and subequal, hardly tapering 
 in the distal half, at a distance from the apex 
 equal to the breadth of the tegmina as broad 
 as the metazona, the intercalaries and cross- 
 veins of the discoidal area everywhere few 
 the venation in general loose and ill defined, 
 the area intercalata not distinctly marked by 
 the adjustment of the veins at its distal ex- 
 tremity, the humeral vein broadly sinuous, 
 terminating on; the costal margin at least as far 
 before the apex as the breadth of the tegmina, 
 nowhere running closely parallel to that margin 
 nor merging into it ; cerci of male styliform, 
 the subgenital plate very narrow, the margin 
 not apically elevated. Phoetaliotes Scudder. 
 
iV 
 
 1 
 
 ' i 
 
 H»'i 
 
 1' 
 
 48 
 
 GUIDE TO ORTHOPTERA 
 
 /* ^. Dorsum of pronotum twice as long is average 
 breadth, at least in the male, with no median con- 
 striction ; antennae, at least in the male, generally 
 lonjjer than the hind femora and much more than 
 twice as long as the pronotum, generally twice as 
 long as head and pronotum together ; face more 
 declivent than in Melanoplus ; prozona only about 
 a third longer than the metazona. 
 
 Paroxya Scudder. 
 g ^. Inferior genicular lobe of hind femora wholly 
 pallid, with no dark basal spot or transverse band ; 
 cerci of male conical or subconical or basally buUate, 
 always apically pointed. 
 
 h^. Subgenital plate of male terminating in a 
 pronounced tubercle ; prosternal spine slender. 
 
 Poecilotettix Scudder. 
 h ". Subgenital plate of male, even when apically 
 angulate, not furnished with an apical tubercle ; 
 prosternal spine stout. 
 
 i^. Relau.-'^ly heavy bodied; dorsal disk of 
 the prozona tumid independently of the meta- 
 zona ; pronotum distinctly angulate or convex 
 behind ; the portion of the metasternum lying 
 behind the lobes laterally extended, reaching 
 to the coxae ; tegmina fully developed or 
 abbreviate but overlapping, with many longi- 
 tudinal veins ; cerci of male very stout and 
 bullate on basal half or more ; abdomen of 
 female bluntly rounded apically, the posterior 
 segments much abbreviated ; ovipositor but 
 slightly exserted. Oedaleonotus Scudder. 
 
 i '^. Relativelv slender bodied : dorsal disk of 
 prozona not tumid independently of the meta- 
 zona; pronotum truncate posteriorly; portion 
 of metasternum lying behind the lobes laterally 
 abbreviated, much narrower than the width 
 
ACIUDIIDAE — ACRIDIINAE 
 
 49 
 
 between coxae ; tegmina linear, lateral, distant, 
 with only a few longitudinal veins ; abdomen 
 of female tapering regularly to a pointed tip ; 
 ovipositor normally exserted. 
 
 Asemoplus Scudder. 
 
 e'^. Face rather strongly oblique, the angle it makes 
 
 with the fastigium varying about from 55° to 67° ; eyes 
 
 elongate, almost or quite twice as long as broad ; portion 
 
 of metasternum lying behind the lobes subtriangular, 
 
 not greatly broader than long; tegmina linear and 
 
 lateral or absent. . . Aptenopedes Scudder. 
 
 Of these genera Melanoplus is the dominant type and the most 
 
 prolific in species of any North American Orthoptera, having 
 
 within our borders alone one hundred and twenty species or 
 
 more. Podisma (Pezotettix Burmeister) is the most peculiar in 
 
 distribution, its eight species being confined to high altitudes or 
 
 latitudes and to two great districts, one in the west from Alberta 
 
 to New Mexico, one in the east from New York and Ontario to 
 
 Maine. The other well endowed genera belong mostly to the 
 
 western half of the continent, Aeoloplus with ten species being 
 
 found from the Yellowstone to Mexico ; Bradynotes with seven 
 
 species confined to the extreme northwest ; and Hesperotettix with 
 
 seven species having much the same range as Aeoloplus but wider, 
 
 one species being confined to the eastern half of the continent and 
 
 found indeed only on or near the Atlantic border. Of the genera 
 
 with two or three species each, Aptenopedes and Paroxya ai-e 
 
 confined to the Gulf or the Gulf ?. ^ .r? Atlantic States, Campylacan- 
 
 tha to the plains and prairie region from Nebraska to Texas, 
 
 Paraideraona to southern Texas and Poecilc ' rttix to the southern 
 
 part of the Pacific coast. Of the remaining genera with one 
 
 species only in the United States, Gymnoscirtetes and Eotettix 
 
 are confined to Florida ; Asemoplus to the extreme northwest ; 
 
 Hypochlora, Dendrotettix, Paratylotropidia and Phoetaliotes 
 
 range between the Rocky Mountains and the Mississippi from 
 
 various points northerly between Alberta and Texas ; Phaedro- 
 
 tettix, Rhabdotettix and Cyclocercus are found in southern Texas ; 
 
60 
 
 GUIDE TO ORTHOPTERA 
 
 and Oedaleonotus along the Pacific coast. Nine of these twenty- 
 one genera, viz. Phaedrotettix, Rhabdotettix, Cyclocercus, 
 Paraidemona, Campylacantha, Hesperotettix, Melanoplus, Phoe- 
 taliotes and Poecilotettix, range southward into Mexico. Podisma 
 is also found in the Old World, but the reraair *ve strictly 
 indigenous types. Dimorphism in respect of the length of the 
 organs of flight is common in many of the genera, but a number 
 of them are uniformly subapterous. 
 
 Dactyloti. 
 
 This is a Central American group of two or three genera, of 
 which only the genus Dactylotum Charpentier is represented, by 
 a single species, in our country, occurring from Dakota to Texas 
 along the eastern front of the Rocky Mountains. 
 
 
LOCUSTIDAE 
 
 51 
 
 LOCUSTIDAE. 
 
 So far as variety of forms is concerned, this family is better 
 represented in the Old World than in the New. Only six of the 
 Mteen recognized subfamilies are known to occm- in the United 
 States, and only one other has been found anywhere else in 
 America. At the same time all the American subfamilies are 
 shared by the Old World. The six subfamilies found with us 
 may be distmguished by the following table. 
 
 Sahfamilies of Locustidae. 
 A \ Body generally winged ; tarsi more or less depressed. 
 
 h \ Fore tibiae furnished with foramina near the base ; male 
 tegmina, when present, furnished with a tympanum. 
 
 c^ First two joints of tarsi smooth laterally; hind tibiae 
 wrth an apical spine on each side. . Phaneropterinae. 
 ' c . First two joints of tarsi longitudinally sulcate laterally • 
 hmd tibiae with an apical spine on outer side only or on 
 neither. 
 
 d^. Fore tibiae without apical spines. 
 
 e\ Fastigiura of vertex short, crowded by the prom- 
 inent antennal scrobes ; pronotum crossed by two dis- 
 tinct transverse sulci. . . Pseudophyllinae. 
 
 e\ Fastigium of vertex extended and free from the not 
 
 prominent antennal scrobes ; pronotum without, or with 
 
 only one, transverse sulcus. . Conocephalinae. 
 
 d\ Fore tibiae with an apical spine on the outer side 
 
 (Body generally subapterous). . . Decticinae. 
 
 b \ Fore tibiae without foramina near the base; male tegmina 
 
 without a tympanum Gryllacrinae. 
 
 A . Body apterous ; tarsi distinctly compressed. 
 
 StQnopelmatinae . 
 
 Phaneropterinae. 
 
 Brunner, in his latest monograph of this subfamily, divides it 
 
 into forty-three groups. Only five of these are known to occur 
 
 in the United States, the first standing at a wide distance from 
 
52 
 
 GUIDE TO ORTHOPTERA 
 
 h 
 
 the remainder. Many other groups occur in tropical America ; 
 none of ours are peculiar to the United States, and with a single 
 exception, where two genera occur, each of these groups is rep- 
 resented by a single genus. 
 
 Groups of Phaneropterinae. 
 ^ Fore coxae unarmed. ... 
 
 Odonturae. 
 
 a 
 
 a ^. Fore coxae bearing a spine. 
 
 b ^ Fore and middle tibiae sulcate or plane above, but acutely 
 margined, the outer margin spinulose or unarmed. 
 
 c^ Fastigium of vertex scarcely deflexed, acuminate, no 
 broader than the first antennal joint. 
 
 d ^ . Tegmina narrow, the hind margin sinuate ; geniculai* 
 lobes of hind femora armed with a long pointed spine ; 
 
 pronotum subsellate Hormiliae. 
 
 d^. Tegmina broader, the hind margin straight or rounded ; 
 
 genicular lobes obtuse or armed with a short spine; 
 
 pronotum not at all sellate. . . Scudderiae. 
 
 c '^. Fastigium of vertex deflexed, obtuse, much broader than 
 
 the first antennal joint; metasternum truncate or with 
 
 rounded lobes. ..... Amblycoryphae. 
 
 h -. Fore and middle tibiae smooth above, without angular 
 margin, generally unarmed above ; metasternum with elon- 
 gated lobes. Microcentra. 
 
 Odonturae. 
 This group is represented by a single genus, Dichopetala Brun- 
 ner, one species of which occurs in Texas. 
 
 
 Hormiliae. 
 
 This group is also represented by a single genus, Arethaea 
 Stal (Aegipan Scudder) which has three or four species in the 
 extreme southern states from Georgia to Arizona. 
 
 Scudderiae. 
 Two of the six genera are represented in our fauna. 
 
LOCUSTIDAE -PSEUDOPHYLLINAE 
 
 53 
 
 a 
 
 Genera of Scudderiae. 
 '. Fore and middle femora unarmed beneath ; the hind femora 
 
 unarmed beneath or .ith few spines. . ...^dj^^, 
 
 • ^;1 *^^ femora spmulose beneath. Symmetropleura Brunner 
 bcudderia has numerous species widely spread over the country 
 
 mostly east of the Rocky Mountains. Symmetrople.ra is known 
 
 only by a smgle species from Carolina. 
 
 Amblycoryphae. 
 
 Amblycorypha Stal is our only genus of this group, with half a 
 dozen species found in the eastern half of the continent. 
 
 Microcentra. 
 
 This group is represented by a single genus, Microcentrum 
 Scudder nch m species, most of which are tropical. Its range in 
 the United States is similar to that of Amblycorypha. 
 
 PSEUDOPH YLLINAE . 
 
 This subfamily is barely represented in the United States, as it 
 AmlricI ^ ''"^^' indigenous genus, shared with tropical 
 
 Genera of PseudophylUnae. 
 a K Body and tegmina testaceous, the latter of only moderate 
 breadth, its anterior ulnar vein terminating not very far before 
 the apex of the tegmina, the veinlets of the costal field distinctlv 
 obhque ; middle coxae with no basal tubercle. Bliastes Stal 
 
 a . Body and tegmina green, the latter of exceptional breadth, 
 Its anterior ulnar vein terminating very far before the apex of the 
 tegmina, the veinlets of the costal field transverse ; middle coxae 
 with a basal tubercle. . . Cyrtopkyllus Burmeister. 
 
 Bh-^-fas is not mdigenous and has occurred only in the orchid 
 house of iL^ Missouri Botanic Garden, where a single specimen 
 did much damage. Cyrtophyllus is the « Katydid " and is widely 
 spread over the United States east of the Rocky Mts., though 
 living at the north only in colonies. "^ 
 
pp 
 
 54 
 
 GUIDE TO ORTHOPTERA 
 
 J 
 
 PI 
 
 CONOCEPH ALIN AE . 
 
 Two of the four tribes of this subfamily occur in the United 
 States, but are also found elsewhere, being widely distributed 
 over the globe. 
 
 Tribes of Conocephalinae. 
 
 a 1. Fore and middle femora spined he^ • th. 
 a ^. Fore and middle femora unarmed . neath. 
 
 Conocephalini. 
 Xiphidiini. 
 
 Conocephalini. 
 
 Redtenbacher recognizes twenty-five genera in this tribe, of 
 which only the four following occur in the United States, all 
 but one of them also found further south. 
 
 Genera of Conocephalini. 
 
 a ^ Prosternum unarmed. . . Copiophora Serville. 
 
 a ^. Prosternum armed with two spines. 
 
 b 1. Tegmina lobiform ; wings wanting. Belocephalus Scudder. 
 b ^. Tegmina and wings perfectly developed, 
 c 1. Fastigium of vertex triquetral, flat above. 
 
 Pyrgocorypha Stal. 
 c-^. Fastigium of vertex conical, convex above. 
 
 Conocephalus Thunberg. 
 Copiophora is not indigenous, but has been taken in the green- 
 houses at Washington, D. C. Belocephalus is a monotypic genus 
 only known from Florida. A single species of Pyrgocorypha is 
 known in eastern America, but of Conocephalus, a dominant 
 genus, our species are numerous and widely spread over the 
 country. 
 
 Xiphidiini. 
 
 Redtenbacher recognizes three genera in this tribe, with only 
 one, a cosmopolitan genus, occurring in the United States. 
 
LOCUSTIDAE _ DECTICINAE 
 
 55 
 
 a 
 
 Genera of Xiphidiini. 
 
 Larger and stouter species. Ovipositor short, falcate. 
 
 /,3 Q^„i, , , , Orchelimum Serville. 
 
 a . Smaller and slenderer species. Ovipositor straight or 
 
 scarcely curved. . W/ •^- cf •„ 
 
 m. „ ^ • . . . Aiphtdium Serville. 
 
 These two genera are united by Redtenbacher, the latest 
 monographer of the group. Both, but especially the latter are 
 represented by a considerable number of species from all par s of 
 tne country. ^ 
 
 Decticinae. 
 This subfamily is fairly well represented in North America, all 
 the groups mto which it is divided by Brunner, with but one 
 foZT -^ 7^'t«^"t^d' -n<i nearly as many genera being 
 found here as m all other countries taken together. The species 
 of the.genera are, however, in no case numerous. 
 
 Ge7iera of Becticinae. 
 
 ^^ Prosternum armed with two erect spines. 
 b 1. Four terminal spines on the lower side of the hind femora 
 two smaller ones between a larger pair. ' 
 
 c*. Ovipositor straight. 
 
 dK Prosternal spines short, obtuse, mgoniaspis Bvxxun^v 
 d\ Prosternal spines long and slender, subacute. 
 
 ^2 rk • -x Atlanticus Scudder 
 
 c\ Ovipositor arcuate. ^^uuuei, 
 
 d 1. Ovipositor curved downward. 
 
 e\ Tegmina longer than the body ; posterior process 
 ot pronotum brief; humeral sinus in posterior maro-in of 
 lateral lobes distinct. . . Capnobotes Scu'dder 
 e \ Tegmina shorter than pronotum ; posterior process 
 of pronotum long ; no humeral sinus in posterior maro-in 
 of lateral lobes. .... ^^o^, Scudd'er. 
 ^- Ovipositor curved upward. Orchesticus ^ixumme 
 
 b . Two terminal spines only (the outer) on the lower side of 
 
 the hind femora. v^^.. • • r, 
 
 • • • . ^rojnzaspisBvmmQY. 
 
['4'i" 
 Ill 
 
 56 
 
 GUIDE TO ORTHOPTERA 
 
 A-' 
 
 Prosternum unarmed. 
 b ^ Fore tibiae spined above on both margins. 
 
 c ^ Large bulky insects. Tegmina of ^ almost completely 
 concealed beneath the pronotum ; eyes but little larger than 
 antennal scrobes. . . . Anabrus Haldeman. 
 
 c '^. Relatively small insects. Exposed portion of $ tegmina 
 half as large as pronotum; eyes fully twice as large as 
 antennal scrobes. . . Cacopteris Scudder p. p. 
 
 h '^. Fore tibiae armed above on outer margin only. 
 
 c ^ Fore tibiae with several spines above on outer margin. 
 d^. Fore tibiae with three spines above on outer margin. 
 e ^ Legs short, the hind femora scarcely or not extend- 
 ing beyond abdomen ; surface of pronotum granulate. 
 
 Peranahrus Scudder. 
 e 2. Legs long, the hind femoi'a extending far beyond 
 abdomen ; sm*face of pronotum smooth. 
 /'I. Pronotum without distinct lateral carinae, except 
 sometimes posteriorly ; a median carina rarely present 
 and then weak. 
 g^. Pronotum transversely arched as much on the 
 posterior as on the anterior half. 
 
 h ^ . Ovipositor straight. Cacopteris Scudder p. p. 
 h ^. Ovipositor arcuate. Ereniopedes Scudder. 
 g"^. Pronotum laterally subangulate posteriorly, 
 and often with a slight median carinula. 
 
 Idiostatus Pictet. 
 f^. Pronotum with distinct lateral and median carinae, 
 the latter sometimes weak. 
 
 g^. Lateral carinae of pronotum parallel or sub- 
 parallel. . . . Steiroxys Hermann. 
 g'^. Lateral carinae approximated in middle of 
 anterior half of pronotum, so as to narrow the 
 dorsum by nearly one half. Idiofiotus Scudder. 
 d^. Fore tibiae with four spines above on outer margin. 
 e^. Descending lobes of pronotum long, obliquely 
 declivent, the dorsum narrow. Clinopleura Scudder. 
 
i 
 
 LOCUSTIDAE — STENOPELMATINAE 
 
 67 
 
 e^. Descending lobes of pronotum short, vertical, the 
 
 dorsum broad. . . . Plagiostira Scudder. 
 
 c^. Fore tibiae with only one spine above on outer margin, 
 
 situated at apex Atelophis Scudder. 
 
 About half these genera are represented by only one or two 
 species each ; the others have more, but none of them probably 
 much above a dozen. They are almost exclusively found west of 
 the Mississippi and particularly in the elevated plateau of the Cor- 
 dilleras, but Atlanticus has three species which are found only 
 east of the Mississippi and especially upon the Atlantic slope, and 
 a single species or two of Orchesticus, the most prolific of the 
 genera, occur on the Atlantic slope. Apote, Idiostatus, Idionotns 
 and Ateloplus are only known west of the Sierra Nevadas and 
 the same is the case with most of the species of Cacopteris. 
 None of our genera occur in the Old World. 
 
 Gryllacrinae. 
 
 This subfamily is represented by only a single apterous genus, 
 Neortus Brunner, one species of which occurs in Carolina. 
 
 Stenopelmatinae. 
 
 Brunner has divided this subfamily into two sections (unnamed), 
 which I have here regarded as tribes. Both of them occur with 
 us, but the former only by one of the twenty-four genera into 
 which the section is divided by Brunner, most of them being Old 
 World types. 
 
 IVibes of iStenopelmatinae. 
 
 a^. Tarsi provided with pulvilli; inserting angle of the hind 
 femora situated on the outer side. . . Stenopelmatini. 
 
 a '^. Tarsi without pulvilli ; inserting angle of the hind femora 
 situated on the inner side. . . . MhaphidophorinL 
 
 Stenopelmatini. 
 
 Represented only by the uncouth genus Stenopelmatus Bur- 
 meister, three species of which have been described from the 
 
HI 
 
 \i 
 
 58 
 
 GUIDE TO ORTHOPTERA 
 
 r 
 
 I 
 
 W 
 
 it 
 
 \J 
 
 Pacific coast; it ranges over the desert region eastward to the 
 Rocky Mts. ; a larger number of species occur south of our 
 border. 
 
 Bhaphidophorini. 
 
 Two of the foiu- groups into which this tribe may be divided 
 occur in North America, the other two belonging exclusively to 
 the Old World. One of our groups is peculiar to the United 
 States, and the other much more highly developed here than else- 
 where, though shared with South America and the Old World. 
 
 Groups of Mhaphidophorini. 
 
 «!. Hind tibiae supplied above and below with spines of one 
 grade only, on both outer and inner margins. TropicUschiae. 
 
 a ^. Hind tibiae furnished above with spines of two grades, 
 longer being interspersed with shorter spines (obscure in Gam- 
 marotettix) ; beneath nearly or quite unarmed, such spines as are 
 present occurring on the middle line only, . Ceuthophili. 
 
 Tropidischlae. 
 
 Its only known genus, Tropidiscjhia Scudder, is monotypic and 
 is found in California. 
 
 Ceuthophili. 
 
 This group, as developed in the United States, contains six of 
 the nine genera known to belong to it, and all of these are peculiar 
 to the United States, excepting as they may extend southward 
 into Mexico. It is the most representative group of temperate 
 North American Locustidae. 
 
 Genera of Ceuthophili. 
 
 «!. Last palpal joint cleft apically on the under side. Descend- 
 ing lobes of the mesonotum but little longer than those of the 
 pronotum ; sides of fore and middle coxae externally laminate, the 
 lamination elevated to a denticle or compressed spine either 
 
LOCUSTIDAE — STENOPELMATINAE 
 
 59 
 
 mesially or (on middle legs) apically, occasionally (Hadenoecus) 
 wanting on middle legs. Fore tibiae not sulcate above; hind 
 tibiae with spines of two grades on both outer and inner margins 
 of upper surface. Outer valves of ovipositor unarmed above 
 before the apex. 
 
 b^. Palpi long. Hind tibiae usually considerably longer than 
 the hind femora. Third hind tarsal joint only half or less 
 than half as long as the second. 
 
 c^. Vertex obscurely bituberculate at apex. Last palpal 
 joint no longer or scarcely longer than the third, and cleft 
 beneath only apically. Middle coxae unarmed. Middle 
 femora with a feeble genicular spine on posterior margin. 
 Hind tibiae with more than four pairs of spurs. First hind 
 tarsal joint almost as long as the others together. Sub- 
 genital plate of male triangular and rather deeply and 
 narrowly emarginate. . . . Hadenoecus Scudder. 
 c^. Vertex not tuberculate. Last palpal joint distinctly 
 longer than the third, cleft beneath for almost its entire 
 length. Middle coxae spined mesially. Middle femora with 
 a distinct genicular spine on posterior margin. Hind tibiae 
 with only four pairs of spurs. First hind tarsal joint 
 generally a third shorter than the rest combined. Sub- 
 genital plate of male ample and broadly emarginate. 
 
 Ceuthophilus Scudder. 
 
 h ^. Palpi short. Hind tibiae shorter or at most but little longer 
 
 than the hind femora. Third hind tarsal joint hardly shorter 
 
 than the second, or (in Daihinia) wanting. (Lamination of 
 
 middle coxae produced inferiorly to the semblance of a spine.) 
 
 c 1. Third palpal joint as long as fifth, the ^inferior cleft of 
 
 the latter extending over only the apical half. Middle femora 
 
 unarmed at tip or with a very feeble spine. Hind tibiae 
 
 shorter or at least no longer than the hind femora, with few 
 
 spines of the second grade on the upper surface, those of the 
 
 first grade relatively numerous, at least in the $ , more or 
 
 less in'egularly placed and of unequal length ; the calcaria 
 
 three in number on each side, the uppermost generally a 
 
ill 
 
 ■ 
 
 '■^ i 
 
 t '^ •' 
 
 ' 
 
 
 \ II i 
 
 lil 
 
 nl 
 
 60 GUIDE TO OilTHOPTEKA 
 
 little the longest and unusually distant from the extreme 
 apex, so as to appear rather as an additional pair of spurs. 
 Subgenital plate of male greatly produced and apically 
 deeply fissured. 
 
 d^. Descending lobes of mesonotum slightly longer than 
 those of pronotum. Last tarsal joint very much shorter 
 than the remaining joints together, the third joint of hind 
 legs normal though but little shorter than the second. 
 Subgenital plate of male ample, rather deeply and broadly 
 emarginate, the sides extending backwards as slender 
 threads. .... Phrixocnemis Scudder. 
 
 d^. Descending lobes of mesonotum no longer than those 
 of pronotum. Last tarsal joint about as long as the rest 
 together ; third tarsal joint of hind legs wanting (as also 
 of fore legs). Subgenital plate of male immensely pro- 
 duced and so deeply fissured as to form two tapering 
 ribbons. .... Daihinia Haldeman. 
 
 t* ^. Third palpal joint shorter than the fifth, the inferior cleft 
 of the latter extending its whole length. Middle femora 
 with a genicular spine on posterior side. Hind tibiae slightly 
 longer than the hind femora, with numerous spines of the 
 second grade uniform in length and pretty regularly sepa- 
 rated ; calcaria three in number on each side, the middle one 
 much longer than the others. (First hind tarsal joint a third 
 shorter than the rest combined.) Subgenital plate of male 
 ample, apically bituberculate. . Udeopsylla Scudder. 
 
 a^. (Vertex bituberculate. Palpi short), the last joint apically 
 with no inferior cleft. Descending lobes of mesonotum consider- 
 ably longer than those of pronotum; sides of fore and middle 
 coxae neither carinate nor spined. (Fore and middle femora 
 unarmed.) Fore tibiae sulcate above ; hind tibiae (of the same 
 length as the hind femora) with only one grade * of spines above 
 on the lateral margins ; (calcaria two in number on each side, 
 subequal and not long. Third hind tarsal joint half as long as 
 
 * There are in reality two grades, but the alternating longer and shorter spines 
 are of such slight inequality as easily to be overlooked. 
 
LOCUSTIDAE — STENOPELMATINAE 
 
 the second. Subgenital plate of male ample, apically broadly and 
 not deeply emarginate); outer valves of ovipositor serrate above 
 
 before the apex Gammarotettix Bvnnner. 
 
 The dommant genus is Ceuthophilus with about sixty species; 
 It IS found m every part of the United States and Canada and 
 extends mto Mexico (a few species are confined to northern 
 Mexico). The other genera contain each from one to three 
 species, and excepting Hadenoecus, known only from caves and 
 deep weUs east of the Mississippi River, occur west of this stream. 
 One species of Udeopsylla has been found a little further east, in 
 llhnois and Manitoba. Gammarotettix is confined to California 
 
in 
 
 62 
 
 GUIDE TO ORTHOPTERA 
 
 GRYLLIDAE. 
 
 All six of the subfamilies of Gryllidae occur in the United 
 States, since all are cosmopolitan ; no similar case occm-s among 
 the Orthoptera. Here also, more than in the other groups, may 
 be seen a nearer correspondence to the European fauna, many 
 more of the genera being identical than is usual in Orthoptera. 
 The following table distinguishes the subfamilies. 
 
 Subfamilies of Gryllidae. 
 
 A 1. Tarsi compressed, the second joint minute, compressed. 
 b ^. Fore legs fossorial ; female without ovipositor ; tympanum 
 of male tegmina (when present) without speculum. 
 
 Gryllotalpinae. 
 b ^. Fore legs gressorial ; female with ovipositor, though it is 
 sometimes rudimentary; tympanum of male tegmina (when 
 present) furnished with a speculum. 
 
 c ^ Hind tibiae biseriately serratulate but not spined, or, if 
 spined (Myrmecophila), then the body is subspherical and 
 the uiiid femora exceptionally gibbous. Myrrnecophilinae. 
 c2. Hind tibiae biseriately spined, the body always sub- 
 elongate, with relatively slender hind femora. 
 
 f?i. Hind tibiae rather stout, armed with stout spines, not 
 
 serrulate between them Gryllinae. 
 
 d 2. Hind tibiae slender, armed with delicate spines, and 
 seiTulate between them. . . . Oecanthinae. 
 
 A '^. Second joint distinct, depressed, cordiform. 
 
 b^. Hind tibiae biseriately spinose, not serrate, the apical 
 spurs two in number on the inner side. Trigonidiinae. 
 
 b^. Hind tibiae biseriately spinose and also serrate, the apical 
 spurs three in number on both sides. . Eneopterinae. 
 
 Gryllotalpinae. 
 Two of the three tribes of this subfamily are represented with 
 us, the third being an Australian type ; both these they share 
 with k,ne Old World, as well as with tropical America. 
 
GRYLLIDAE - GRYLLOTALPINAE 
 
 68 
 
 Tribes of Gryllotalpinae. 
 
 ml'rJ^r^ T"^"^"^ :^'^ '^' ^'•'^^ ^^^"^' ^«^« ^^biae dUatecl, 
 jdnted ^""""'^ ''"'"'^^ saltatorial; tarsi 3- 
 
 dilate?, f"-. ^'•\'''''' small ocelli; fore tibiae scaLy 
 dilated 3-4 spmed apically ; hind femora strongly saltatoriaf- 
 
 tarsi uniarticulate or aborted. t • /T , .' 
 
 • • • • Iridactylmi. 
 
 Gryllotalpini. 
 Both the known genera of this tribe occur in the United States. 
 
 I 2 
 
 Genera of Gryllotalpini. 
 
 Anterior tibiae tetradactyle. . . Gryllotalpa Unr.^ 
 
 a ^ Anterior tibiae bidactyle. . ^ea^/mc Jscudder 
 
 Scapteriscus occm-s only along the margin of the Gulf of 
 
 Mexico; GryUotalpa everywhere; and each is represented by 
 
 two or three species, ^ 
 
 Tridactylini. 
 
 One of the two genera of this group, Tridactylus Olivier, is a 
 cosmopolitan genus which occm-s throughout our territory, repre- 
 sented by several species. ^ ^ 
 
 Myemecophilinae . 
 
 .^!^'^^'?'^! ""^ ^^' ^^^"^"^ ^"^""^ ^"""^^ «f t^i« f^"^% occur in 
 the United States, two of them shared with Europe, one with trop- 
 ical America. ^ 
 
 Genera of Myrmecophilinae. 
 a \ Antennae stout ; hind femora ovate ; hind tibiae dilated with 
 only three or four apical spurs. . MyrmecophUa Latreille 
 a . Antennae slender ; hind femora elongate ; hind tibiae slender' 
 with six apical spurs. ' 
 
 h \ First joint of hind tarsi sulcate and serrate ; pronotum not 
 produced posteriorly, the metanotum expo^.ed. 
 
 Mogosiplistus Serville. 
 
fr 
 
 64 
 
 GUIDE TO ORTHOPTERA 
 
 b '*. First joint of hind tarsi neither sulcate nor serrate ; pro- 
 notum produced posteriorly, concealing the raetanotum. 
 
 Cycloptilum Scudder. 
 Myrmecophila is represented by several species and is widely 
 spread, probably occurring wherever there ar<5 ants' nests. 
 Cycloptilum is represented by one or two species along the 
 borders of the Gulf of Mexico ; and Mogosiplistus has just been 
 discovered under bark of trees at Biscayne Bay, Florida, by Mrs. 
 A. T. Slosson. 
 
 1 1 
 
 j \ 
 
 Gbyllinae. 
 
 Only three of the nineteen acknowledged genera of this sub- 
 family occur in the United States, and these genera are all cos- 
 mopolitan, or at any rate widely distributed over the globe. 
 
 Genera of Gryllinae, 
 
 a 1. Hind tibiae furnished with long, mobile, pilose spines ; first 
 joint of hind tarsi unarmed above or with one row of serrations. 
 
 Nemobius Serville. 
 a 2. Hind tibiae armed with strong fixed spines ; first joint of 
 hind tarsi sulcate above, with two rows of serrations. 
 
 b ^. Fore tibiae provided with auditory foramina on both faces. 
 
 Oryllus Linne. 
 b ^ Fore tibiae with no auditory Toramen on inner face. 
 
 Gryllodes Saussure. 
 Neraobius and Gryllus occur everywhere, anr" have a consider- 
 able number of species, especially the former G lloucs occurs 
 only in the southern portions with two or +^ pecies at most. 
 
 Many of the species in these genera are dii aic as regai iS the 
 length of the organs of flight. 
 
 Oecanthinae. 
 
 This subfamily is represented in the United States by a single 
 genus, Oecanthus Serville, out of the twenty known, and this it 
 shares with the Old World and South America. We have half 
 a dozen or more species, spread over the whole country. 
 
GRYLLIDAE — TRIGONIDIINAE 
 
 65 
 
 Trigonidiixae. 
 
 Half the known genera of this subfamily occur with us, two of 
 which are shared with tropical AmeriJa, while the third is 
 cosmopolitan. 
 
 Genera of I'rigonidiinae. 
 aK Last palpal joint infundibuliform, apically dilated; lower 
 margin of the facial scutellum transverse or arcuate ; basal joint 
 of antennae subdepressed, pretty large ; lateral lobes of pronotum 
 subquadrate, the lower margin subhorizontal, subexcised in the 
 middle. 
 
 b 1. Foramina of fore tibiae wanting or found on one side only. 
 
 Anaxiphiis Saussure. 
 h 2. Foramina of fore tibiae present on both sides. 
 
 Cyrtoxiphus Brunner. 
 a 2. Last palpal joint dilate, foliaceous ; lower margin of the 
 facial scutellum angularly excised in the middle ; basal joint of 
 antennae narrow, minute ; lateral lobes of pronotum narrowed 
 anteriorly, the lower margin not excised. Phylloscirtus Gu^rin. 
 These genera are represented by only one or two species each, 
 and these are almost entirely confined to the Southern States, and 
 to the region east of the Rocky Mountains. 
 
 Eneopteuuv/e. 
 
 Only four of the twenty-nine known genera o,*' this group occur 
 in the United States, and all are shared with tropical America. 
 
 Genera of Eneopterinae. 
 
 a^. Tegmina of male provided with a stridulatory tympanum. 
 b^. At least three or four oblique veins traverse the median 
 area of the tympanum of the male tegmina, reaching to its pos- 
 terior portion Paroecanthus Saussure. 
 
 b \ No more than two oblique veins traverse the median area 
 of the tympanum of the male tegmina, and are found in the 
 proximal portion only. 
 
Ul 
 
 I 
 
 m 
 
 ♦I fi 
 
 66 
 
 GUIDE TO ORTHOPTERA 
 
 a 
 
 '. Fore tibiae with auditory foramen on the inner face only 
 0^. Fore tibiae with auditor foranuna on U>ttT^ ™"- 
 Tegmina of male ■i.e those of the female wituf t^Tpl':- 
 
 Orochari. ranj^ ^^^^ ZlTZir^^lt^''^ ^ 
 known from eaat of the Rocky Mountls ^ ''' ""'^ 
 
 if 
 
 
BIBLIOGRAPHICAL NOTES 
 
 67 
 
 BIBLIOGRAPHICAL NOTES. 
 
 The modern system of Orthoptera was first laid down in general 
 treatises by Burmeister and Serville (quoted below), but these 
 works are now of relatively small value, since the study of each 
 family has been much more fully developed independently by 
 various later writers, to whom, when American groups are treated 
 reference is made farther on. The latest general system of 
 Orthoptera — a sketch only — is to be found in Brunner's Revi- 
 sion du syst^me des Orthopt^res (1893). Other general works 
 that may be consulted for North American Orthoptera are 
 Scudder's Catalogue of the earlier described species (1868) and 
 Glovers' Illustrations (1872). 
 
 For tables for the determination of the famiUes of Orthoptera, 
 see Burmeister's Handbuch der entomologie, ii, 468 (1838)1 
 Serville's Orthopt^res (Suites k Euffon), 9,293 (1839); Fieber's 
 Synopsis der europaischen Orthopteren, 2-3 (1853); Fischer's 
 Orthoptera europaea, 4-5 (1853); Scudder, in Bost. journ. nat. 
 hist, vii, 413 (1862), and in Psyche, i, 169-70 (1876); Thomas' 
 Key to Illinois Orthoptera, 1 (1875), and the same in Rep. ins. 
 Ill, IX, 82 (1880); Brunner's Prodromus der europaischen Orthop- 
 teren, 1 (1882); Comstock's Introduction to entomology, 89-90 
 (1888); Fernald's Orthoptera of New England, 12 (1888); Fmot's 
 Insectes Orthopt^res, 59 (1890); Sharp, in the Cambridge natural 
 history, v, 201 (1895); and Comstock's Manual for the study of 
 insects, 105 (1895). 
 
 FORFICULIDAE. 
 
 Besides the treatment of this family in the general works on 
 Orthoptera, some of the principal of which are mentioned above, 
 see ServiUe, Rev. m^th. Orthopt., 2-3 (1831); de Haan, Bijdr! 
 kenn. Orthopt., 238-39 (1842); Dohrn, Monogr. Dermapt. 
 (Stett. ent. zeit., xxiv, 35-66, 309-322; xxv, 285-96, 417-29; 
 xxvi, 68-99; xxviii, 341-43 -1863-67); numerous papers by de' 
 
l: 
 
 m 
 
 GUIDE TO ORTHOPTERA 
 
 Bonnans, and especially his Etude sur quelques Forficulaires 
 (Ann. soc. ent. Belg., xxvii, 59-90, 1893), where a table of genera 
 is added ; and his treatment of these insects in the Biol, centr. 
 amer., Orthopt., 1-12 (1893); Brunner, Prodr. eur. Orthopt., 4, 
 for a table of the European genera (1882); Scudder, Proc. Bost. 
 soc. nat. hist., xviii, 287-332 (1876); also his Synoptical table of 
 U. S. Forficulariae (Psyche, i, 177-78 — 1876); and his Synopsis 
 of the North American species (Bull. U. S. geol. surv. ten*., ii, 
 249-60, 1876); and finally Kirby's Revision of the Forficulidae 
 (Journ. Linn. soc. Lond., Zool., xxiii, 502-31, 1890), which also 
 contains a table of the genera. 
 
 Anisolabis. — (Table of species) Scudder, Bull. U. S. geol. 
 surv. terr., ii, 251 (1876). 
 
 Sphongophora. — (Table of species) Scudder, Bull. U. S. geol. 
 surv. terr., ii, 252 (1876). 
 
 Labia. — (Tables of species) Scudder, Psyche, i, 178 (1876); 
 Id., Bull. U. S. geol. surv. terr., ii, 257 (1876). 
 
 Forficula. — (Tables of American species) Scudder, Psyche, i, 
 177 (1876); Id., Bull. U. S. geol. siu-v. terr., ii, 254 (1876). 
 
 BLATTIDAE. 
 
 For the general treatment of this family and tables for its sub- 
 division, to which special reference is made, see, in chronological 
 order and with special reference to North American forms, Bur- 
 nieister's Ilandb. ent., ii, 481-82 (1838) ; Serville's Orthopt^res, 
 66 (1839) ; de Ilaan, Bijdr. kenn. Orthopt., 48 (1842) ; Fieber, 
 Syn. eur. Orthopt., 4-6 (1853) ; Fischer, Orthopt. eur., 91 (1853) ; 
 Scudder, Bost. journ. nat. hist., vii, 413 — for New England 
 genera (1862) ; Saussure, Orthopt. Am6r. moy., 46, 47-49, 145, 
 219 (1864-65) ; Brunner, Syst. Blatt., 46-50 (1865) ; Saussure, 
 M61. orthopt., i (1869) ; his Miss, scient. Mex., Orthopt. (1870) ; 
 Stal, Kech. syst. Blatt. 6-7 (1874) ; Thomas, Key 111. Orthopt., 
 (1875) ; Brunner, Prodr. eur. Orthopt., 29-30 — for the European 
 genera (1882) ; Fernald, Orthopt. N. Engl, 50 — N. Engl, gen- 
 era only (1888) ; Brunner, R6v. syst. Orthopt., 10-12 (1893) ; 
 
BIBLIOGRAPHICAL NOTES - MANTIDAE 
 
 69 
 
 ^rficulaires 
 ' of genera 
 ►iol. centr. 
 rthopt., 4, 
 *roc. Bost. 
 il table of 
 ' Synopsis 
 ^. terr., ii, 
 >rficulidae 
 hich also 
 
 S. geol. 
 
 • S. geol. 
 
 (1876); 
 
 *8yche, i, 
 5). 
 
 its sub- 
 ological 
 18, Bur- 
 Dptdres, 
 Fieber, 
 1853) ; 
 Ingland 
 9, 145, 
 ussure, 
 1870) ; 
 thopt,, 
 I'opean 
 1. gen- 
 893) ; 
 
 Saussure-Zehntner, Biol, centr. amer., Orthopt., 14-15 (1893) • 
 and Sharp, Cambr. nat. hist., v, 240-41 (1895). 
 
 Blattinae.— (Tables of genera) Brunner, Syst. Blatt., 46-47 
 (1865); Id., My. syst. Orthopt., 13-14 (1893); Saussure-Zehnt- 
 ner, Biol, centr. amer., Orthopt., 30-31 (1893). 
 
 Thi/rsocera. — (Tables of species) Brunner, Syst. Blatt., 
 116-17 (1865); Saussure, Miss, scient. Mex., Orthopt., 48 
 (1870) ; Brunner, li^v. syst. Orthopt., 21 (1893). 
 
 Ischnoptera.— {Tables of species) Brunner, Syst. Blatt., 
 128-29 (1865) ; Saussure, Miss, scient. Mex., Orthopt., 53 (1870) • 
 Saussure-Zehntner, Biol, centr, amer., Orthopt., 35-36 (1893). 
 
 J'hyllodromia. — (Tables of species) Saussure, Orthopt. Am^r 
 moy., 93-94 (1864-65); Brunner, Syst. Blatt., 89-90 (1865)- 
 Saussure, Miss, scient. Mex., Orthopt., 27 (1870) ; Brunner, R^v' 
 syst. Orthopt., 14-15 (1893) ; Saussure-Zehntner, Biol, centr 
 amer., Orthopt., 41-42 (1893). 
 
 Ceratmoptera.— (Tables of species) Brunner, Syst. Blatt., 76 
 (1865); Saussure-Zehntner, Biol, centr. amer., Orthopt., ' 48 
 
 (loyd). 
 
 T€m7iopteryx.~ (Tables of species) Brunner, Syst. Blatt., 84 
 (1865); Saussure, Miss, scient. Mex., Orthopt., 23 (1870); Saus- 
 sure-Zehntner, Biol, centr. amer., Orthopt., 50-52 (1893). ' 
 
 Zoboptera.— (Table of species) Brunner, Syst. Blatt., SO 
 (1865). 
 
 Nyctoboeinae. — No table of genera has ever been published. 
 
 JVi/ctobora.~ (Tables of species) Brunner, Syst. Blatt., 144 
 (1865); Saussure-Zehntner, Biol, centr. amer., Orthopt, 55 
 (1893). 
 
 Periplanetinae.— (Tables of genera) Brunner, Syst. Blatt 
 48,202-3(1865); Stal, Kech. syst. Blatt., 12-14(1874); Brun- 
 ner, R^v. syst. Orthopt., 33-35 (1893); Saussure-Zehntner, Biol, 
 centr. amer., Orthopt,, 69-70 (1893). 
 
 Murycotis. —(Table of species) Saussure-Zehntner, Biol, centr. 
 amer., Orthopt., 70 (1893). 
 
 Pelmatosilpha.— (Table of species) Saussure-Zehntner, Biol, 
 centr. amer., Orthopt., 72 (1893). 
 
70 
 
 GUIDE TO ORTHOPTERA 
 
 t 
 
 I'eriplaneta. — (Table of species) Saussure-Zehntner, Biol, 
 centr. amer., Ortliopt., 73-74 (1893). 
 
 Pakchlorinae. — (Tables of genera) Brunner, Syst. Blatt., 
 48-49 (1865); Stal, Rech. syst. Blatt., 16-17 (1874); Saussure- 
 Zehntner, Biol, centr. amer., Orthopt., 88-89 (1893). 
 
 Panchlora. — (Tables of species) Saussure, Orthopt. Amer. 
 moy., 187-202, passim (1864-65); Brunner, Syst. Blatt., 271- 
 72 (1865); Saussure, Miss, sclent. Mex., Orthopt., 101 (1870); 
 Saussure-Zehntner, Biol, centr. amer., Orthopt., 91-93 (1893). 
 
 CoRYDixAE. — (Table of genera) Saussure-Zehntner, Biol, 
 centr. amer., Orthopt., 104-105 (1893). 
 
 Homoeogamia. — (Table of species) Saussure-Zehntner, Biol, 
 centr. amer., Orthopt., 105-106 (1893). 
 
 Plectopteeinae. — (Table of genera) Brunner, Syst. Blatt., 
 48 (1865). 
 
 Chorisoneura. — (Table of species) Brunner, Syst. Blatc. 
 256 (1865). 
 
 Panesthinae. — (Tables of genera) Brunner, Syst. Blatt., 
 50 (1865); Id., R^v. syst. Orthopt., 45-46 (1893); Saussure, 
 Rev. Suisse zool, iii, 301-303 (1895). 
 
 MANTIDAE. 
 
 Tables for the determinations of the subfamilies (in some 
 instances of the genera only) of Mantidae will be found in Bur- 
 meister, Handb. ent., ii, 523-24 (1838); Serville, Orthopteres, 
 140 (1839); de Haan, Bijdr. kenn. Orthopt., 64-65 (1842); 
 Fischer, Orthopt. eur., 123 (1853); Saussure, Miss, sclent. Mex., 
 Orthopt., 229-30 (1870); Id., Ma orthopt., i, 157 (1870); Id., 
 Mant. am^r., 7 (1871); Id., Mitth. schweiz. ent. gesellsch., iii, 51 
 (1872); Stal, Syst. Mant., 5-7 (1877); Brunner, R6v. syst. 
 Orthopt., 57-58 (1893); Saussure-Zehntner, Biol, centr. amer., 
 Orthopt., 124 (1894) ; Sharp, Cambr. nat. hist., v, 259 (1895); and 
 Scudder, Can. ent., xxviii, 207-209 (1896). For a general dis- 
 cussion of the classific'ition, see also Stal, Rech. syst. Mant. 
 (1873). 
 
 Wi 
 
BIBLIOGRAPHICAL NOTES - PHASMIDAE 
 
 71 
 
 Mantinae.- (Tables of genera and higher groups) Saussure, 
 Ma orthopt., i, 175-77 (1870); Id., Mant. am^r., 27-30 (1871); 
 Id., Miss, scient. Mex., Orthopt., 233-36 (1872); Id., Mitth! 
 schweiz. ent. gesellsch., iii, 55-58, 224-27, 234-35 (1872); Id 
 M^l. orthopt., ii, 19-21 (1872); Stal, Syst. Mant., 18-45 (1877)' 
 Brunner, Prodr. eur. Orthopt., 57 — for European genera (1882);' 
 Id., mv. syst. Orthopt., 60-64 (1893); Saussure-Zehntner, Biol 
 centr. amer., Orthopt., 127-130, 162 (1894); Scudder, Can. ent 
 xxviii, 207-209 (1896). 
 
 I'hasmomatitis.— (Table of species) Saussure-Zehntner, Biol, 
 centr. amer., Orthopt., 149 (1894). 
 
 Stagm.omantis.—(Tiihles of species) Saussure, Mant. am6r., 
 44 (1871); Id., Miss, scient. Mex., Orthopt., 243-44 (1872). 
 Saussure-Zehntner, Biol, centr. amer., Orthopt., 140-41 (1894)! 
 
 £runneria. — {TaUe of species) Saussure, Mant. am^r., 133 
 
 (1871). 
 
 0%o/^2/a;.— (Tables of species) Saussure, Mant. am^r., 119 
 (1871); Id., Miss, scient. Mex., Orthopt., 273 (1872); Saussure- 
 Zehntner, Biol, centr. amer., Orthopt., 172 (1894). 
 
 Thesprotia. —(Table of species) Saussure-Zehntner, Biol, centr. 
 amer., Orthopt., 170 (1894). 
 
 Vatinae.— (Tables of genera) Saussure, Mant. am(5r., 156 
 (1871); Id., M^ orthopt., ii, 73 (1872); Id., Miss, scient. Mex. 
 Orthopt. 286 (1872); Id., Mitth. schweiz. ent. gesellsch., iii, 53 
 (1872); Brunner, R^v. syst. Orthopt., 73-75 (1893); Saussure- 
 Zehntner, Biol, centr, amer., Orthopt., 184 (1894). 
 
 TAeoc^y^es. —(Tables of species) Saussure, Mant. am($r., 172 
 (1871); Id., Miss, scient. Mex., Orthopt., 292 (1872) ; Saussure- 
 Zehntner, Biol, centr. amer., Orthopt., 190-91 (1894). 
 
 PHASMIDAE. 
 
 For the division of this family into subfamilies or genera, see 
 Bm-meister, Handb. ent., ii., 560 (1838); ServiUe, Orthoptics, 
 220-222 (1839); de Haan, Bijdr. kenn. Orthopt., 107-108 (1842); 
 Stal, Rech. syst. Phasm., 13-16 (1875); Id., Rec. Orthopt., iii^ 
 
I, 
 
 I. 
 
 Ill 
 
 III 
 
 1 
 ■ f 
 
 I 
 
 72 
 
 GUIDE TO ORTHOPTERA 
 
 4-62 (1875); Id., Obs. orthopt., i, 5-21 (1875); Brunner, R^v. 
 syst. Orthopt., 79-81 (1893); Sharp, Cambr. nat. hist., v, 277-78 
 (1895); and Scudder, Can. ent., xxvii, 29-30 (1895), the last for 
 the United States genera only. 
 
 Bacunculinae. — (Table of genera) Brunner, R6v. syst. 
 Orthopt., 82 (1893). 
 
 Sermyle. — (Table of species) Stal, Rec. Orthopt., iii, 1^-11 
 (1875). 
 
 Anisomorphinae. — (Table of genera) Brunner, Rev. Syst. 
 Orthopt., 98 (1893). 
 
 ACRIDIIDAE. 
 
 Tables for the distribution of this family into subordinate 
 groups will be found in Burmeister, Handb. ent., ii, 602-603 
 (1838); Serville, Orthopt^res, 565-70 (1839); de Haan, Bijdr. 
 kenn. Orthopt., 144-46 (1842); Fieber, Syn. eur. Orthopt., 
 8-37, passim (1853); Fischer, Orthopt. eur., 295-98 - for 
 European genera (1853); Scudder, Bost. journ. nat. hist., vii, 
 414 — N. Engl, genera (1862); Stal, Rec. Orthopt., i, 1-8 (1873); 
 Thomas, Acrid. N. A., 49-51 (1873); Id., Key 111. Orthopt., 
 2-3— for Illinois genera (1875); Stal, Obs. orthopt., ii, 8-10 
 (1876); Thomas, Rep. ins. 111., ix, 83-92 — for Illinois genera 
 (1880); Brunner, Prodr. eur. Orthopt., 83-87 — for European 
 genera (1882); Oomstock, Intr. ent, 100-101 (1888); Fernald, 
 Orthopt. N. Engl. 28— N. Engl, genera (1888); Brunner, R6v. 
 syst. Orthopt., 102-103 (1893); Sharp, Cambr. nat. hist., v, 
 309-10 (1895); Morse, Psyche, vii, 325 — for N. Engl, groups 
 only (1896); McNeill, Proc. Dav. acad. nat. sc, vi, 180 — Amer- 
 ican subfamilies only (1897). 
 
 Tettiginae. — (Table of species) de Haan, Bijdr. kenn. 
 Orthopt., 166-67 (1842). (Tables of genera) Thomas, Acrid. 
 N. A., 182 (1873); Stal, Obs. orthopt., ii, 47 (1876); Bolivar, 
 Ess. Tettig., 17-22 (1887); Comstock, Intr. ent., 112 (1888); 
 Fernald, Orthopt. N. Engl., 46 — N. E,, genera only (1888); 
 Morse, Psyche, vii, 149 — for N. Engl, genera only (1894). 
 
inner, R^v. 
 
 „ V, 277-78 
 the last for 
 
 R6v. syst. 
 
 , iii, 76-77 
 
 Rev. Syst. 
 
 subordinate 
 ii, 602-603 
 aan, Bijdr. 
 '. Orthopt., 
 j_98 - for 
 t. hist., vii, 
 1-8 (1873); 
 1. Orthopt., 
 >t., ii, 8-10 
 tiois genera 
 r European 
 ); Fernald, 
 inner, R^v. 
 ,t. hist., V, 
 Qgl. groups 
 iO — Araer- 
 
 ijdr. kenn. 
 Luas, Acrid. 
 >); Bolivar, 
 12 (1888); 
 y (1888); 
 (1894). 
 
 BIBLIOGRAPHICAL NOTES -ACRIDIIDAE 73 
 
 Tettig-iae. — (Table of genera) Bolivar, Ess. Tettig., 21 (1887) 
 /livf*'^'"^'^^^^''' ^^" 'P^''^^') ^^^^^^^' Ess. Tettig., 83-85 
 ^ ? LJ^rf."^' ^''^'P'- ^- ^"S^-' ^^-^- Engl, species 
 (im) ^'^'^'' '"' '^^""^' ^"^^- ^P^^'^« «"^y 
 
 Pam^em-a;. -(Tables of species) Bolivar, Ess. Tettig., 96-98 
 (1887). 
 
 Batrachideae.- (Table of genera) Bolivar, Ess. Tettig., 21-22 
 (1887). 
 
 re««^*<?ea. — (Tables of species) Bolivar, Ess. Tettig , 121-22 
 (1887) ; Fernald, Orthopt. N. Engl., 47 - N. Engl, species (1888) • 
 Morse, Psyche, vii, 149- N. Engl, species only (1894). ' 
 
 Tryxalinae. — (Tables of genera) Thomas, Acrid. N. A., 57 
 
 ••^fo^oo ^!o!: ^''' ^'^^^P^-' ^' ^^-^^ (1^^^)5 Id-' Obs. orthopt., 
 11, 19-23 (1876); Id., ibid., 41-43 -N. A. genera only (1876)' 
 Fernald, Orthopt. N.Engl., 34 -N. Engl, genera only (1888 • 
 Brunner, R4v. syst. Orthopt.. 118-123 (1893); Morse, Psyche, 
 vu, 325-327 — N, Engl, species only (1896); McNeill, Proc 
 Dav. acad. nat. sc, vi, 195-198 (1897). 
 
 Achurum.~(Tahle of species) McNeill, Proc. Dav. acad. nat 
 sc, vi, 202 (1897). 
 
 ^croc«m. — (Table of species) Scudder, Psyche v 437 
 (1890). ' J , , i 
 
 Mermiria. ~(T^hle of species) McNeill, Proc. Dav. acad. nat. 
 sc, vi, 204-205(1897). 
 
 £:ritemx. ~ (Table of species) McNeill, Proc. Dav. acad. nat 
 sc, vi, 218 (1897). 
 
 Si/rbula.-.(Tiih\e of species) McNeill, Proc. Dav. acad. nat 
 sc, vi, 221-222 (1897). 
 
 AmpMtor7ius. — (Table of species) McNeill, Proc Dav. acad 
 nat. sc, vi, 224 (1897). 
 
 AmUytropkUa. — (Table of species) McNeill, Proc. Dav. acad 
 nat. sc, vi, 226-227 (1897). 
 
 Chloealtis. — (Tables of species) Thomas, Acrid. N. A , 74 
 (1873); Fernald, Orthopt. N. Engl., 35 (1888); Morse, Psyche, 
 vii, 327 (1876); McNeill, Proc Dav.acad. nat. sc, vi, 228 (1897). 
 
74 
 
 GUIDE TO ORTHOPTERA 
 
 r) 
 
 
 ■■; :; 
 
 H 
 
 ti 
 
 p'l 
 
 Dichromorpha. — (Table of species) McNeill, Proc. Day. acad, 
 nat. sc, vi, 231 (1897). 
 
 Orphula. — (Tables of species) Morse, Psyche, vii, 326-327 — 
 N. Engl, species only (1896); McNeill, Proc. Dav. acad. nat. sc, 
 vi, 234-236(1897). 
 
 Alpha. — (Table of species) McNeill, Proc. Dav. acad. nat. sc, 
 vi, 246 (1897). 
 
 Boopedon, — (Table of species) McNeill, Proc. Dav. acad. nat. 
 sc, vi, 250 (1897). 
 
 Plectrotettix. — (Table of species) McNeill, Proc. Dav. acad. 
 nat. sc, vi, 252 (1897). 
 
 Mecostethus. — (Tables of species) Morse, Psyche, vii, 327 
 (1896); McNeill, Proc Dav. acad. nat. sc, vi, 254 (1897). 
 
 Stenohothrus. — (Tables of species) Thomas, Acrid. N. A., 81 
 (1873); Id., Key 111. Orthopt., 3 — 111. species only (1875); 
 McNeill, Proc. Dav. acad. nat. sc, vi, 260 (1897). 
 
 Gomphocerus. — (Tables of species) Stal, Rec Orthopt., i, 
 108-111 (1873); Bolivar, Anal, orthopt., 3-7 (1878); McNeill, 
 Proc Dav. acad. nat. sc, vi, 265 (1897). 
 
 Ageneotettix. — (Table of species) McNeill, Proc. Dav. acad. 
 nat. sc, vi, 268 (1897). 
 
 Stirapleura. — (Table of species) McNeill, Proc. Dav. acad. 
 nat. sc, vi, 270-271 (1897). 
 
 Psoloessa. — (Table of species) McNeill, Proc Dav. acad. nat. 
 sc, vi, 273 (1897). 
 
 Oedipodinae. — (Table of species) de Haan, Bijdr. kenn. 
 Orthopt., 159-61 (1842). (Tables of genera and tribes) 
 Thomas, Acrid. N. A., 71-72 (1873); Stal, Rec Orthopt., i, 
 113-119 (1873); Id., Obs. orthopt., ii, 24-28, 43-47 (1873); 
 Thomas, Key 111. Orthopt., — Illinois genera only (1875); 
 Scudder, Rep. Wheeler's surv., 1876, 508 — Western genera 
 only (1877); Saussure, Prodr. Oedip., 41-63 (1884); Id., Add. 
 prodr. Oedip., 14 (1888); Comstock, Introd. ent, 103 — Eastern 
 genera only (1888); Fernald, Orthopt. N. Engl., 38-39 — N. 
 E. genera only (1888); Morse, Psyche, viii, 35-37 —N. Engl, 
 genera only (1897). 
 
 ''• 
 
BIBLIOGRAPHICAL NOTES -ACRIDIIDAE 75 
 
 Oedipodini. _ (Tables of genera) Saussure, Prodr Oedip 
 41-61, 154, 192 (1884); Id., Add. prodr. Oedi;., 14-24 (1888)" 
 ^Arphia.-(T^Ue of species) Saussure, Prodr. Oedip, 65-66 
 
 Chonophaga. - (Tables of species) Scudder, Proc. Bost. soc 
 nat hist., xvn, 479 (1875); Saussure, Prodr. Oedip., 72 (1884) 
 75 ^ Jg^g4^"''^^^'^^- - ( Table of species) Saussure, Prodr. Oedip.,' 
 
 Encoptolophus.- (Tables of species) Shudder, Proc. Bost. soc. 
 nat. hist., xvii, 480 (1875); Saussure, Pi odr. Oedip., 77 (1884) 
 
 mppiscus.— (Tables of species) Saussure, Prodr. Oedb 82- 
 84, 89-90 (1884); Scudder, Psyche, vi, 266-74 (1892) 
 
 isf t57l'884r ^^^^' '^ '^'''''^ ^'''''''''' ^"''^"' ^'^'P" 
 Spharagemon.- (Tables of species) Scudder, Proc. Bost soc 
 nat. hist., xvii, 468 (1875); Saussure, Prodr. Oedip., 135 (1884v" 
 Fernald, Orthopt. K Engl. 43 _N. E. species (1888); Morse 
 Psyche, vii, 290, 292, 295 - N. Engl, species only (1895) 
 
 Scirtettica. — (Table of species) Saussure, Prodr. Oedip., 135 
 (1884). 
 
 Zactista. — {Tdihle of species) Saussure, Prodr. Oedin 142-4q 
 (1884). ^'' 
 
 Tomonotus.— (Table of species) Saussure, Prodr. Oedip., 97 
 
 (1884). 
 
 Berotmema. — (Table of species) Saussure, Prodr. Oedin 155 
 (1884). ^■' 
 
 Mestobregma. — (Tables of species) Saussure, Prodr. Oedip 
 160-61 (1884); Id., Add. prodr. Oedip., 58-59 (1888) . 
 
 Conozoa. — (Tables of species) Saussure, Prodr. Oedip., 165 
 (1884); Id., Add. prodr. Oedip., 60-61 (1888). 
 
 Trimerotropis. — (Tables of species) Saussure, Prodr. Oedip. 
 167-68 (1884); Id., Add. prodr. Oedip., 63 (1888). 
 
 Circotettix.— (Table of species) Saussure, Prodr. Oedip, 175 
 (1884). ^'' 
 
 Heliastus. — (Table of species) Saussure, Prodr. Oedip , 212- 
 13 (1884). ^ 
 
76 
 
 GUIDE TO ORTIIOPTERA 
 
 Eremobiini. — (Tables of genera) Saussure, Prodr. Oedip., 
 61-63 (1884); Id., Add. prodr. Oedip., 122-24 (1888). 
 
 Brachystola. — (Table of species) Saussure, Prodr. Oedip., 163 
 (1884). 
 
 AcRiDiiNAE. — (Tables of genera and higher groups) Thomas, 
 Acrid. N. A., 144-45(1873); Stal, Rec. Orthopt., i, 26-44 (1873); 
 Id., Obs. orthopt., ii, 10-19 (1876); Id., ibid., ii, 37-41— N. A. 
 genera (1876); Id., Syst. Acrid., 5-53 (1878); Comstock, Introd. 
 ent., 106 — the commoner N. A. genera (1888) ; Fernald, Orthopt. 
 N. Engl., 18 — N. Engl, genera (1888); Brunner. R^v. syst. 
 Orthopt., 131-51 (1893). 
 
 Dictyophorus, — (List of species) Pictet-Saussure, Catal. Acrid., 
 i, 17 (1887). 
 
 Mhomalea. — (Table and List of species) Pictet-Saussure, 
 Catal. Acrid., i, 18-20 (1887). 
 
 Tropiclacris. — (Tables and List of species) Stal, Rec. Orthopt., 
 i, 48-49 (1873); Pictet-Saussure, Catal. Acrid., i, 28-29 (1887). 
 
 Schistocerca. — (Tables of species) Stal, Rec. Orthopt., i, 64-67 
 (1873); Thomas, Acrid. N. A., 169 (1873); Id., Key 111. Orthopt, 
 3 — Illinois species only (1875). 
 
 Melanopli. — (Tables of genera) Stal, Obs. orthopt., iii, 3-5 
 (1878); Brunner, R6v. syst. Orthopt., 144-47 (1893); Scudder, 
 Psyche, vii, 367-68 — N. E. genera only (1896); Id., Proc. amer. 
 acad. arts sc, xxxii, 195-204 (1897). A monograph on this 
 group, with tables and descriptions of all the N. A. genera and 
 species will shortly be published by the U. S. National Museum. 
 
 Podisma. — (Tables of species) Thomas, Acrid. N. A., 145-46 
 (1873); Id., Key 111. Orthopt., 3 — Illinois species only (1875); 
 Stal, Obs. orthopt., iii, 14-15 (1878). 
 
 Melanoplus. — (Tables of species) Thomas, Ann. rep. U. S. 
 geol. surv. terr., v, 449-50 (1872); Id., Acrid. N. A., 158 (1873); 
 Id., Key 111. Orthopt., 3 — Illinois species only (1875); Scudder, 
 Proc. Bost. soc. nat. hist., xix, 322-24 — N. Engl, species only 
 (1878); Id., ibid, 327-28 — Western species only (1878); Stal, 
 Obs. orthopt., iii, 13-14 (1878); Comstock, Introd. ent, 108, 
 commoner species only (1888); Fernald, Orthopt. N.Engl., 31 — 
 
BIBLIOGRAPHICAL NOTES — LOCUSTIDAE 
 
 77 
 
 . Oedip., 
 Bdip., 163 
 
 Thomas, 
 4 (1873); 
 
 — N. A. 
 <, Introd. 
 , Orthopt. 
 \^v. syst. 
 
 al. Acrid., 
 
 Saussure, 
 
 Orthopt., 
 
 ) (1887). 
 
 ., i, 64-67 
 
 Orthopt, 
 
 iii, 3-5 
 Scudder, 
 oc. amer. 
 I on this 
 snera and 
 Museum. 
 ., 145-46 
 T (1875); 
 
 3p. U. S. 
 I (1873); 
 Scudder, 
 icies only 
 8); Stal, 
 3nt., 108, 
 gl.,31- 
 
 N. Engl, species only (1888); Scudder, Psyche, vii, 368-70 — 
 N. Engl, species only (1896); Scudder, Proc. amer. philos. soc, 
 xxxvi, (1897). 
 
 Tables of these and all the other genera of Melanopli having 
 more than one species will be found in the forthcoming memoir 
 referred to under Melanopli. 
 
 LOCUSTIDAE. 
 
 Tables more or less complete for determining the higher groups 
 of the genera will be found in Burmeister, Handb. ent., ii, 673-75 
 (1838); Serville, Orthopt^res, 376-83 (1839); de Haan, Bijdr., 
 kenn. Orthopt., 180-82 (1842); Fieber, Syn. eur. Orthopt. 
 38-62, passim (1853); Fischer, Orthopt. eur., 197-99 (1853); 
 Scudder, Bost. journ. nat. hist., vii, 414 — N. Engl, genera only 
 (1862); Stal, Rec. Orthopt., ii, 1-4 (1874); Thomas, Key 111. 
 Orthopt., 2 — IlHnois genera only (1875); Brunner, Monogr. 
 Phaneropt., 10-12 (1878); Id., Prodr. eur, Orthopt., 245-49 — 
 European groups only (1882); Comstock, Jutrod. ent., 113 — 
 northeastern U. S. genera only (1888); Fernald, Orthopt. N. 
 Engl, 18 — N. Engl, genera only (1888); Brunner, R6v. syst. 
 Orthopt., 165-66 (1893); Sharp, Cambr. nat. hist., v, 328-29 
 (1895). 
 
 PHANEEorTERiNAE. — (Tables of genera and higher groups) 
 Stal, Ofv. vet. akah. forh., xxx, 39-42 (1873), Id., Rec. Orthopt , 
 ii, 8-22 (1874); Brunner, Monogr. Phaneropt., 12-32(1878); Id., 
 Add. monogr. Phaneropt., 3-24 (1891). 
 
 Odonturae. — (Tables of genera) Brunner, Monogr. Phaneropt., 
 12-13 (1878); Id., Add. monogr. Phaneropt., 3-4 (1891). 
 
 Dichopetala. — (Table of species) Brunner, Monogr. Phan- 
 eropt, 76 (1878). 
 
 Hormiliae (Tables of genera) Brunner, Monogr. Phaneropt., 
 
 24 (1878); Id., Add. monogr. Phaneropt., 16 (1891). 
 
 Arethaea. — (Table of species) Brunner, Monogr. Phaneropt., 
 235(1878). 
 
78 
 
 GUIDE TO ortmopteha 
 
 Ji 
 
 re 
 
 Scudderiae. — (Tables of genera) Brunner, Monogr. Phaneropt., 
 25 (1878); Id., Add. monogr. Phaneropt., 16-17 (1891). 
 
 Scudderia. — (Table of species) Brunner, Monogr. Phaneropt., 
 237-38 (1878). 
 
 iSymmetopleura. — (Table of species) Brunner, Monogr. Phan- 
 eropt., 245-46 (1878). 
 
 Amblycoryphae — (Tables of genera) Brunner, Monogr. Phan- 
 eropt., 26-27 (1878); Id., Add. monogr. Phaneropt., 19 (1891). 
 
 Ambhjcovypha. — (Table of species) Brunner, Monogr. Phan- 
 eropt, 265-66 (1878). 
 
 Microcentra. — (Tables of genera) Brunner, Monogr. Phan- 
 eropt., 29-31 (1878); Id., Add. monogr. Phaneropt., 22-23 
 (1891). 
 
 Microcentrum. — (Tables of species) Brunner, Monogr. Phan- 
 eropt., 334-35 (1878); Id., Add. monogr. Phaneropt., 179-80 
 (1891). 
 
 PsEUDOPHYLLiXAE. — (Tables of genera and higher groups) 
 Stal, Ofv. vet. akad. forh., xxx, 44-48 (1873); Id., Kec. Orthopt., 
 ii, 48-67 (1874); Brunner, Monogr. Pseudoph., 9-22 (1895). 
 
 Bliastes. — (Table of species) Brunner, Monogr. Pseudoph., 
 181-83 (1895). 
 
 Cyrtophyllus. — (Table of species) Brunner, Monogr. Pseud- 
 oph., 239 (1895). 
 
 CoNOCEPiiALiNAE. — (Tables of genera and higher groups) 
 Stal, Ofv. vet. akad. forh., xxx, 50 (1873); Id., Rec. Orthopt., ii, 
 96-104 (1874); Redtenbacher, Verb, zool.-bot. gesellsch. Wien, 
 xli, 327-33 (1891). 
 
 Conocephalini. — (Table of species) de Haan, Bijdr. kenn. 
 Orthopt., 211-12 (1842). (Table of genera) Redtenbacher, 
 Verb, zool.-bot. gesellsch. Wien, xli, 328-30 (1891). 
 
 Copiophora. — (Tables of species) Stal, Rec. Orthopt., ii, 104- 
 105 (1874); Redtenbacher, Verb, zool.-bot. gesellsch. Wien, 
 xli, 340 (1891). 
 
 Pyrgocorypha. — (Table of species) Redtenbacher, Verb, zool.- 
 bot. gesellsch. Wien, xli, 372 (1891). 
 
 Conocephalus. — (Tables of species) Stal, Rec. Orthopt. ii, 108- 
 
BIBLIOGRAPHICAL NOTES - LOCUSTIDAE 
 
 79 
 
 110 (1874); Kedtenbacher, Verb, zool.-bot. gesellsch. Wein, 
 xli, 378-86 (1891). 
 
 XlphuUini. —(Tables of genera) Stal, Hec. Orthopt., ii, 111-13 
 (1874); Iledtenbaclier, Verb, zool.-bot. gesellscb. Wien, xli, 
 333 (1891). (Table of species) Fernakl, Ortbopt. N. Engl., 24 
 — N. Engl, species only (1888). 
 
 Orc/ielimitm. ~{Tnh\e of species) Redtenbaeber, Verb, zool.- 
 bot. gesellscb. Wien, xli, 494-95 (1891). 
 
 X^iphidium.— (Table of species) Redtenbacber, Verb, zool.- 
 bot. gesellscb. Wien, xli, 495-99 (1891). 
 
 Decticinae.— (Tables of genera) Hei-man, Verb, zool.-bot. 
 gesellscb. Wien, xxiv, 197-201 (1874); Brunner, Rev. syst. 
 Ortbopt., 185-88 (1893); Scudder, Can. ent., xxvi, 177-79 
 (1894). 
 
 Atlanticus. — (Table of species) Scudder, Can. ent., xxvi, 179- 
 80 (1894). 
 
 Capnobotes. — (Table of species) Scudder, Can. ent., xxix, 73- 
 74 (1897). 
 
 Steiromjs. — (Table of species) Scudder, Can. ent., xxvi, 182 
 (1894). 
 
 Stenopelmatinae. — (Tables of genera and bigber groups) 
 Stal, Obs. ortbopt., ii, 49-53 (1876); Brunner, Monogr. Stenop., 
 9-13 (1888). 
 
 Stenopelraatini. — (Table of genera) Brunner, Monogr. Stenop., 
 9 (1888). 
 
 Stenopelmatus. — (Table of species) Brunner, Monogr. Stenop., 
 14-15 (1888). 
 
 Rhaphidophorini. — (Table of genera) Brunner, Monogr. 
 Stenop., 12-13 (1888). 
 
 Ceuthophili. — (Tables of genera) Brunner, Monogr. Stenop., 
 12-13 (1888); Scudder, Proc. amer. acad. arts sc, xxx, 20-21 
 (1894). 
 
 Hadenoecus. — (Table of species) Scudder, Proc. amer. acad. 
 arts sc, xxx, 22 (1894). 
 
 Ceuthophilus, — (Tables of species) Brunner, Monogr. Stenop., 
 61-62 (1888); Scudder, Proc. amer. acad. arts sc, xxx, 24-30 
 (1894). 
 
I 
 
 80 
 
 GUIDE TO ORTHOPTERA 
 
 Phrixocnemis. — (Table of species) Scudder, Proc. amer. 
 acad. arts sc, xxx, 103 (1894). 
 
 Daihinia. — (Table of species) Scudder, Proc. amer. acad. arts 
 sc, xxx, 108 (1894). 
 
 Udeopsylla. — (Table of species) Scudder, Proc. amer. acad. 
 artssc, xxx, 109 (1894). 
 
 GRYLLIDAE. 
 
 i 
 
 Tables of genera and higher groups will be found in Burmeister, 
 Handb. ent., ii, 729 (1838); Serville, Orthopt^res, 298-99 (1839); 
 de Haan, Bijdr. kenn. Orihopt., 227-28 (1842); Fieber, Syn. 
 eur. Orthopt, 62-69, passim — the European genera (1853); 
 Fischer, Orthopt. eur., 151-52 — European genera (1853); 
 Scudder, Bost. journ. nat. hist., vii, 413-14 — N. Engl, genera 
 only (1862); Saussure, Miss, sclent. Mex., Orthopt. 332 (1874); 
 Thomas, Key 111. Orthopt., 2, — Illinois genera (1875); Brunner, 
 Mitth. schweiz. ent. gesellsch., iv, 164-67 (1877); Saussure, M61. 
 orthopt., ii, 185 (1877); Brunner, Prodr. eur. Orthopt., 419-20 
 — European genera (1882); Comstock, Introd. ent. 120 — 
 common American genera (1888); Fernald, Orthopt. N. Engl., 
 12 — N. Engl, genera (1888); Sharp, Cambr. nat. hist., v, 340 
 (1895); Saussure, Biol, centr. amer., Orthopt., 198-99 (1894). 
 
 Gryllotalpixae. — (Tables of genera) Saussure, Miss, sclent. 
 Mex., Orthopt., 334 (1874); Id., M61. orthopt., ii, 187 (1877); 
 Brunner, Mitth. schweiz. ent. gesellsch., 166-67 (1877). 
 
 Gryllotalpa. — (Tables of species) de Haan, Bijdr. kenn. 
 Orthopt., 237 (1842); Scudder, Mem. Peab. acad. sc, i, 16 
 (1869); Saussure, Miss, sclent. Mex., Orthopt., 341 (1874); Id., 
 Mel. orthopt., ii, 192-93 (1877). 
 
 ScapteriscHs. — (Tables of species) Scudder, Mem. Peab. acad. 
 sc, i, 7 (1869); Saussure, Miss, sclent. Mex., Orthopt., 337 
 (1874). 
 
 Tridactylus. — (Tables of species) de Haan, Bijdr. kenn. 
 Orthopt., 237-38 (1842); Saussure, Miss, sclent. Mex., Orthopt., 
 
BIBLIOGRAPHICAL NOTES — GRYLLIDAE 
 
 81 
 
 
 I 
 
 351 (1874); Id., Mel. orthopt., ii, 214-15 (1877); Id., Biol, centr. 
 amer., Orthopt., 204 (1896); Id., Rev. Suisse zool.,iv, 30 (1897). 
 
 Myrmecopiiilixae. — (Tables of genera) Saussure, Miss, scient. 
 Mex., Orthopt., 423 (1874); Id., M61. orthopt., ii, 450-57 (1877). 
 Brimner, Mitth. schweiz. eiit. gesellsch., iv, 107 (1877). 
 
 Cycloptihim. — (Table of species) Saussure, Miss, scient. Mex., 
 Orthopt., 420 (1874). 
 
 Gryllinae. — (TaVios of genera) Saussure, Miss, scient, Mex., 
 Orthopt, 380 (1874); id., M61. orthopt., ii, 231-33, 451 (1877); 
 Brunner, Mitth. schweiz. ent. gesellsch., iv, 166 (1877). 
 
 Nemohius. — (Tables of species) Saussure, Miss, scient. Mex., 
 Orthopt., 382 (1874); Id., Mel. orthopt., ii, 240-42 (1877); 
 Scudder, Journ. N. Y. ent. soc, iv, 100-101 (1896); Id., Psyche, 
 vii, 431-33 (1896). 
 
 Gryllus. — (Tables of species) de Haan, Bijdr. kenn. Orthopt,, 
 229-30 (1842); Saussure, Miss, scient. Mex., Orthopt., 395-9;- 
 (1874); Id., M61. orthopt., ii, 314-16 (1877). 
 
 Gryllodes. — (Tables of species) Saussure, Miss, scient. Mex., 
 Orthopt., 410-11 (1874) ; Id., M41. orthopt,, ii, 367-68 (1877). 
 
 Oecanthinae. — (Tables of genera) Saussure, Miss, scient. 
 Mex., Orthopt., 429-30 (1874); Brunner, Mitth. schweiz. ent. 
 gesellsch., iv, 454-55 (1877); Saussure, M61. orthopt., ii, 536-39 
 (irf.'S). 
 
 Oecdnt/ms. — (Tables of species) Saussure, Miss, scient. Mex., 
 Orthopt., 458 (1874) ; Id., M41. orthopt., ii, 593 (1878) . (Distinc- 
 tions between N. A. species) Hart, Ent. news, iii, 33-34 (1892). 
 
 Teigonidiinae. — (Tables of genera) Saussure, Miss, scient. 
 Mex., Orthopt., 363 (1874); Brunner, Mitth. schweiz. ent. 
 gesellsch., iv, 455-56 (1877); Saussure, Mel. orthopt., ii, 601-602 
 (1878); Brunner, Rev. sys^ Orthopt., 207 (1893). 
 
 Anaxiphus. — (Table of species) Saussure, Miss, scient. Mex., 
 Orthopt., 371 (1874). 
 
 Cyrtoxiphus. — (Tables of species) Saussure, Miss, scient. Mex,, 
 Orthopt., 373 (1874); Id., M61. orthopt., ii, 618 (1878). 
 
 Phylloscirtus. — (Tables of species) Gerstaecker, Stett. ent. 
 zeit., xxiv, 425-26 (1863); Saussure, Miss, scient. Mex., Orthopt., 
 
 mk 
 
82 
 
 GUIDE TO ORTHOPTERA 
 
 365 (1874); Id., Ma orthopt., ii, 635-36 (1878); Burmeister, 
 Cephal. u. Phyllosc. 15-16 (1880). 
 
 Eneopterinae.— (Tables of genera) Saussure, Miss, scient. 
 Mex., Orthopt., 465-66 (1874); Brunner, Mitth. schweiz. eiit. 
 gesellsch., iv, 455 (1877); Saussure, M^l. orthopt., ii, 645-49 
 (1878). 
 
 I'aroecanthus.— (Tables of species) Saussure, Miss, scient. 
 Mex., Orthopt., 470 (1874); Id., M61. orthopt., ii, 735 (1878). 
 
 ApUhis. — (Tables of species) Saussure, Miss, scient. Mex 
 Orthopt., 488 (1874); Id., M^l. orthopt., ii, 744-45 (1878). 
 
 Orocharis. — (T&Ues of sj.ecies) Saussure, Miss, scient. Mex, 
 Orthopt., 494 (1874); Id., M61. orthopt., ii, 751 (1878). 
 
 Metrijpa. — (Tables of species) Saussure, Miss, scient. Mex. 
 Orthopt., 513 (1874); Id., M61. orthopt., ii, 812-13 (1878). 
 
 Other tables of genera and higher groups of Gryllidae wli 
 doubtless appear in Saussure's treatment of the family in the 
 Biologia centrali-americana, now in the course of publication. 
 
LITERATURE 
 
 83 
 
 LIST OF THE LITERATURE 
 
 REFERRED TO IN THE PRECEDING BIBLIOGRAPHICAL NOTES. 
 
 Bolivar, Ignacio. Analecta orthopterologica. 48 pp., 2 pi. [Madrid] 
 1878. 8*^. (Anal. soc. espan. hist, nat., vii, 423-470, pi. 4-5.) 
 
 Essai sur les Acridiens de la tribu des Tettigidae. 2 + 139 pp., 2 pi. 
 
 Gand, 1887. 8<^. (Ann. soc. ent. Belg. xxxi, 175-313, pi. 1-2.) 
 
 Bormans, August. ]fctude sur quelques Forficulaires nouveaux ou peu 
 connus, pr6c6d6e d'un tableau synoptique des genres de cette famille. 30 
 pp., 1 pi., 1 sheet, Bruxelles, 1883. 8°. (Ann. soc. ent. Belg., xxvii, 59-<J0, 
 pi. 2.) 
 
 Dermaptera. Godm.-Salv., Biol, centr. amer., Orthopt., 1-12, pi. 1-2- 
 
 London, 1893. 4°. 
 
 Brunner von Wattenwyl, Carl. Nouveau systeme des Blattaires. 420 pp., 
 13 pi. Vienne, 1865. 8°. 
 
 Systeme des Gryllides. 8 pp. [Schaffhausen], 1877. 8°. (Mitth. 
 
 schweiz. ent. gesellsch., iv, 163-170.) 
 
 Monographic der Phaneropteriden. 2 -f 401 pp., 8 pi. Wien, 1878. 
 
 8*^. — Additamenta zur monogi-aphie der Phaneropteriden. 190 pp., 2 pi. 
 Wien, 1891. 8*^. (Verh. zool.-bot. gesellsch. Wien, xli, 1-190, pi. 1-2.) 
 
 Prodromus der europaischen Orthopteren. 32 + 400 pp., 12 pi. 
 
 Leipzig, 1882. 8^. 
 
 Monographic der Stenopelmatiden und Gryllacriden. 150 pp., 4 pi. 
 
 Wien, 1888. 8°. (Verh. zool.-bot. gesellsch. Wien, xxxviii, 247-394, pi. 
 5-8.) 
 
 Revision du systeme des Orthopteres, et description des especes rap- 
 
 portees par M. Leonardo Fea de Birmanie. 230 pp., pi. Genova, 1893. 
 8°. (Ann. mus. civ. stor. nat. Genova, (2), xiii, 1-2.30, pi. 1-0.) 
 
 Monographie der Pseudophylliden. 4 4-282 pp., 10 pi. Wien, 1895. Text 
 8°, plates 4^^. 
 
 Burmeister, Hermann Carl Conrad. Handbuch der entomologie. Bd. II, 
 abth. ii. 666 pp. Berlin, 1838. 8^. 
 
 Cephalocaema und Phylloscirtus, zwei merkwiirdige Orthopteren- 
 
 gattungen der fauna argentina. 20 pp., 1 pi. Halle, 1880. 4°. (Abh. 
 naturf. gesellsch. Halle, xv, 1-20, pi. 1.) 
 
 Comstock, John Henry. An introduction to entomology [Part i]. 4 -{- 234 
 pp. Ithaca, 1888. 8'^. 
 
 and Comstock, Anna Botsford. A manual for the study of insects. 
 
 12 4- 701 pp., pi. Ithaca, 1895. 8\ 
 
84 
 
 GUIDE TO ORTHOPTERA 
 
 Bokrn, Wolfgang Ludwig Heinrich. Versuch einer monographie der Der- 
 niapteren. Stett. ent. zeit., xxiv-xxviii, passim. Stettin, 1803-67. 8*^. 
 
 Fernald, Cliarles Henry. Tiie Ortlioptera of New England ; designed for the 
 use of the students in the Massachusetts agricultural college and the farmers 
 of the state. 01 pp. Bo.ston, 1888. 8'^. (Ann. rep. Mass. agric. coll., xxv 
 [Pub. doc. 1888, 31], 89-145; Rep. sec. board agric. Mass., 1887, 421-481.) 
 
 Fieber, Franz Xavier. Synopsis der europaischen Orthopteren, mit 
 besonderer riicksicht auf die in Bohmen vorkommenden artoii. 4 -j- 79 pp. 
 Prag, 1854 [1853*]. (Lotos, iii, passim.) 
 
 Finot, Adrien. Faune de la France. Insectes OrthoptSres. Thysanoures 
 et Orthopteres proprement dits. 322 pp., 13 pi. Fontainebleau, 1890. 8°. 
 
 Fischer, Leopold Heinrich. Orthoptera europaea. 20 -}- 454 pp., 18 pi. 
 Lipsiae, 1853. 4°. 
 
 Gerstaecker, Carl Eduard Adolph. Scepastus und Phylloscirtus, zwei 
 kaferahnliche Grylloden-gattungen. Stett. ent. zeit., xxiv, 408-430. Stettin, 
 1863. 8°. 
 
 Glover, Townend. Illustrations of North American entomology (United 
 States and Canada). Orthoptera. 5-1-11 pp., 13 pi. Washington, 1872. 
 4=. Five additional plates, with MS. explanation, were afterward issued, 
 four in 1874, the last still later. 
 
 Ilaan, Willem de. Bijdragen tot de kennis der Orthoptera. Temminck, 
 Verh. nat. geschied. Nederl. overz. bezitt., 45-248, pi. 10-23. Leiden, 
 1842, fol. 
 
 Hart, Charles A. On the species of Oecanthus. Ent. news, iii, 33-34. 
 Philadelphia, 1892. 8°. 
 
 Herman, Otto. Die Decticiden der Brunner von Wattenwyl'schen samm- 
 lung; 1, genera. Verh. zool.-bot. gesellsch. Wien, xxiv, 191-210 pi. 3-6. 
 Wien, 1874. 8°. 
 
 Kirbij, William Forsell. A revision of the Forficulidae, with descriptions 
 of new species in the British museum. Journ. linn. soc. Lond., zool., xxiii, 
 502-531, pi. 12. London, 1890. 8". 
 
 McNeill, Jerome. Revision of the Truxalinae of North America. Proc. 
 Davenp. acad. nat. sc, vi, 179-274, pi. 1-0. Davenport, 1897. 8°. 
 
 Morse, Albert Pitts. Notes on the Acrididae of New England, i, Tetti- 
 ginae; ii, Tryxalinae; iii, Oedipodinae. Psyche vii-viii, passim. Cam- 
 bridge, 1894-1897. 4°. 
 
 Revision of the species of Spharagemon. Psyche, vii, 287-299. Cam- 
 bridge, 1895. 4°. 
 
 * The date on the title page is 1854, but the whole appeared bj' instalments in Lotos 
 in 18.53 — the last, in November, containing the Gryllidae; and Fieber in mentioning 
 this in Lotos (iv, 146, note) says of the separate issue " unrichtig mit der jahreszahl 
 1K;54." It is important, as it thus precedes Fischer's work, the pretace of which is 
 ix., dated, Cal. Nov. MDCCCLIIL" 
 
LITERATURE 
 
 85 
 
 Pictet, Alphonse et Saussure, Henri de. Catalogue d'Acridiens. 46 pp. 
 Schaffhouse, 1887. 8°. (Bull. soc. eut. sulsse, vii, 331-376.) 
 
 Redtenbacher, Josef. Monographie der Conocephaliden. Verh. zool.-bot. 
 gesellsch. Wien, xli, 315-562, pi. 3-4. Wien, 1891. 8°. 
 
 Saussure, Henri de. Melanges orthopt6rologiques. Tomes i-ii. Geneve. 
 4°. T. i, 460 pp., 7 pi., 1863-71. T. ii, 834 pp., 19 pi., 1872-1878. (Extr. 
 Mdm. soc. phys. hist. nat. Geneve, xvii-xxv.) 
 
 Ortliopteres de I'Amerique moyenne. 279 pp., 2 pi. Geneve, 1864. 
 
 4°. (Sauss., M6m. hist. nat. Mex., I, iii-iv.) 
 
 Synopsis des Mantides americains. 184 pp., 2 pi. Gen5ve, 1871. 
 
 4°. (Sauss., M^m. hist. nat. Mex., II, i.) 
 
 Essai d'un systeme des Mantides. Mitth. schweiz. ent. gesellsch., iii, 
 
 49-73. Schaffhausen, 1872. 8°. 
 
 Additions au systeme des Mantides. Mitth. schweiz. ent. gesellsch., iii, 
 
 221-244. Schaffhausen, 1872. 8°. 
 
 ^fetudes sur les insectes Orthopteres. 6 + 533 pp., 8 pL Paris, 1872 
 
 [1872-79]. fol. (Miss, scient. Mex. et Amdr. centr., Rech. zool.) 
 
 Prodromus Oedipodiorum, insectorum ex ordine Orthopterorum. 256 
 
 pp., 1 pi. Geneve, 1884. 4°. (Mdm. soc. phys. hist. nat. Geneve, xxviii, 
 No. 9.) — Additamenta ad prodromum Oedipodiorum. 182 pp., 1 pi. Geneve, 
 1888. 4"^. (M6m. soc. phys. hist. nat. Geneve, XXX, No 1.) These two were 
 subsequently connected, with a new title page : Prodrome des Oedipodiens, 
 insectes de I'ordre des Orthopteres. Geneve, 1888. 4°. 
 
 Revision de la tribu des Panesthiens et de celle des Epilampriens, 
 
 insectes Orthopteres de la famille des Blattides. Rev. suisse zool., iii, 
 299-364, pi. 9. Gen6ve, 1895. 8°. 
 
 R6vision du genre Tridactylus. Rev. suisse zool., iv, 407-419, 
 
 Geneve, 1897. 8°. 
 
 Orthoptera genuina : Gryllidae. Godm.-Salv., Biol, centr. Amer., 
 
 Orthopt., 198- pi. 11- London, 1894. 4°. (In course of publication.) 
 
 et Zehntner, Leo. Orthoptera genuina : Blattidae, Mautidae. Godm.- 
 Salv., Biol, centr. amer., Orthopt., 13-197, pi. 1-10. London, 1893-94. 4.'^ 
 
 Scudder, Samuel Hubbard. Materials for a monograph of the North 
 American Orthoptera, including a catalogue of the known New England 
 species. Bost. journ. nat. hist., vii, 409-480. Boston, 1862. 8^. 
 
 Catalogue of the Orthoptera of North America, described previous 
 
 to 1867. 20 + 89 pp. Washington, 1868. 8^. 
 
 Revision of the large, stylated, fossorial crickets. 28 pp., 1 pi. 
 
 Salem, 1869, 8^. (Mem. Peab. acad. sc, i.) 
 
 Spharagemon, a genus of Oedipodidae, with a revision of the species. 
 
 Proc. Bost. soc. nat. hist, xvii, 467-471 ; Ent. notes, iv, 66-70. Boston, 1875. 
 
 8°. 
 
 Revision of two American genera of Oedipodidae. Proc. Bost. soc, 
 
 nat. hist., xvii, 478-485 ; Ent. notes, iv, 77-84. Boston, 1875. 8 . 
 
f 
 
 86 
 
 GUIDE TO ORTHOPTERA 
 
 Scudder, Samuel Hubbard. Brief synopsis of North American earwigs, 
 with an appendix on the fossil species. Bull. U. S. geol. surv. terr., ii, 249- 
 200. Washington, 1876. 8°. 
 
 Synoptical tables for determining North American insects. Orthop- 
 
 tera. Psyche, i, 169-171. Cambridge, 1876. 8^^. 
 
 Synoptical tables for determining North American insects. Orthop- 
 
 tera — U. S. Forficulariae. Psyche, i, 177-178. Cambridge, 187G, 8^, 
 
 Critical and historical notes on Forficulariae ; including descriptions 
 
 of new generic forms and an alphabetical synonymic list of the described 
 species. Proc. Bost. soc. nat. hist., xviii, 287-332 ; Ent. notes, v, 27-72. 
 Boston, 1876. 8''\ 
 
 Report on the Orthoptera collected by the U. S. geographical surveys 
 
 west of the 100th meridian, under the direction of Lt. George M. Wheeler, 
 during the season of 1875. Rep. chief eng., 1876, 498-515. Washington, 
 
 1877. 8°. 
 
 Remarks on Calliptenus and Melanoplus, with a notice of the species 
 
 found in New England. Proc. Bost. soc. nat. hist., xix, 281-286 ; Ent. notes, 
 vi, 40-45. Boston, 1878. 8°. 
 
 Brief notice of the American species of Melanoplus found west of the 
 
 one hundred and seventeenth meridian. Proc. Bost. soc. nat. hist., xix, 286- 
 200 ; Ent. notes, vi, 45-49. Boston, 1878. 8^. 
 
 Some genera of Oedipodidae rescued from the Tryxalidae. Psyche, 
 
 V, 431-442. Cambridge, 1890. 4^. 
 
 The Orthopteran genus Hippiscus. Psyche vi, passim. Cambridge, 
 
 1892. 4°. 
 
 A preliminary view of the North American Decticidae. Can. ent., 
 
 xxvi, 177-184. London, 1894. 8°. 
 
 The North American Ceuthophili. Proc. Amer. acad. arts sc, xxx, 
 
 17-113. Boston, 1894. 8^\ 
 
 Summary of the U. S. Phasmidae. Can. ent., xxvii, 29-30. London, 
 
 1895. 8^^. 
 
 The New England Melanopli. Psyche, vii, 367-370. Cambridge, 
 
 1896. 4°. 
 
 The North American species of Nemobius. Journ. N. Y. ent. soc, iv, 
 
 99-107. New York, 1896. 8°. 
 
 The species of Nemobius found in North America. Psyche, vii, 
 
 431-434. Cambridge, 1896. 4^^. 
 
 Index to the Mantidae of North America north of Mexico. Can. ent., 
 
 xxviii, 207-215. London, 1896. 8 •. 
 
 The genera of North America Melanopli. Proc. amer. acad. arts 
 
 sc, xxxii, 192-206. Boston, 1897. 8^. 
 
 Synonymical and descriptive notes on North American Orthoptera. 
 
 Can. ent., xxix, 73-76. London, 1897. 8^^. 
 
 The species of the genus Melanoplus. Proc. amer. phil. soc, xxxvi. 
 
 Philadelphia, 1897. 8^. 
 
LITERATURE 
 
 87 
 
 Serville, Jean Guillauroe Audinet. Revue mfithoclique des insectes de Tordre 
 des Orthopt^res. 101 pp. Paris, 1831. 8^. (Ann. sc. nat., xxii, passim). 
 
 Histoire natureile des insectes. Orthopteres. 18 -|- 777 pp., 14 pi. 
 
 Paris, 1839. 8^. 
 
 »S'^arp, David. Insecta. Cambr. nat. hist., v, 81-584. London, 1895. 8°. 
 
 o 
 
 Stal, Carl. Recensio Orthopterorum. Revue critique des OrthoptSres 
 dficrits par Linn6, de Geer et Thunberg. [3 parts.] Stockholm. 8"^. 
 i, 4 + 154 pp., 1873; ii, 4 + 121 pp., 1874; iii, 4 + 105 pp., 1875. 
 
 Recherches sur le systeme des Mantides. 26 pp. Stockholm, 1873. 
 
 8°. (Bih. svensk. vet. akad. handl., i, no. 10.) 
 
 Orthoptera nova. Ofv. vet. akad. forh., xxx, 39-53. Stockholm, 
 
 1873. 8°. 
 
 Recherches sur le systeme des Blattaires. 18 pp. Stockholm, 1874. 
 
 8°. (Bih. svensk. vet. akad. handl., ii, no. 13.) 
 
 Recherches sur le systeme des Phasmides. 19 pp. Stockholm, 1875. 
 
 8°. (Bih. svensk. vet. akad. handl, ii, no. 17.) 
 
 Obervations orthoptfirologiques. [i], 43 pp. Stockholm, 1875, 8'=. 
 
 (Bih. svensk. vet. akad. handl., iii, no. 14.); ii, 58 pp. 1876 (Bih., iv, no. 
 5.) ; iji 20 pp. 1878 (Bih., v, no. 9.). 
 
 Systema Mantodeorum. Essai d'une syst6raatisation nouvelle des 
 
 Mantod6es. 91 pp., 1 pi. Stockholm, 1877. 8°. (Bih. svensk. vet. akad. 
 handl., iv, no. 10). 
 
 Systema Acrideodeorum. Essai d'une systSmatisation des Acridio- 
 
 dfies, i. 100 pp. Stockholm, 1878. 8". (Bih. svensk. vet. akad. handl., v, 
 no. 4). 
 
 Thomas, Cyrus. Notes on the saltatorial Orthoptera of the Rocky 
 Mountain reg'ons. Ann. rep. U. S. geol. surv. terr., v, 423-466, pi. 1-2. 
 Washington. 1872. 8^. 
 
 Synopsis of the Acrididae of North America. 10+262 pp., 1 pi. 
 
 Washington, 1873. 4*^. (Rep. U. S. geol. surv. terr., v.) 
 
 Key to Illinois Orthoptera. 4 pp. [Carbondale, 1875. ?]. 8°. 
 
 The Acrididae of Illinois. Rep. ins. 111., ix, 73-140. Sprin^eld, 
 
 1880. 8°. 
 
PRMHIPiimHQI 
 
 INDEX. 
 
 Numbers following 06 refer to the Bibliographies. 
 
 Acentetus, 28, 32. 
 Achurum, 25, 32, 73. 
 Acridia, 39, 41. 
 Acridiidae, 7, 9, 22, 72. 
 Acridiinae, 22, 39, 76. 
 Acrocara, 26, 32, 73. 
 Acroloph'itus, 25, 32. 
 Aegipan, 52. 
 Aeoloplus, 44, 49. 
 Ageneotettix, 31, 32, 74. 
 Agyinnastus, 34, 37. 
 Alpha, 29, 32, 74. 
 Amblycorypha, 53, 77. 
 Amblycoryjihae, 52, 53, 77. 
 Amblytropidia, 28, 32, 73. 
 Ampnitornus, 28, 32, 73. 
 Anabrus, 56. 
 Anaxiphus, 65, 81. 
 Anconia, 37, 38. 
 Anisolabis, 11,68. 
 Anisomorpha, 20, 21. 
 Ani8omorphinae,19, 20, 72. 
 Apithis, 66, 82. 
 Apote, 55, 57. 
 Aptenopedes, 49. 
 Arethaea, 52, 77. 
 Arnilia,41. 
 Arphia, 33, 37, 75. 
 Asemophis, 49. 
 Ateloplus, 57. 
 Atlanticus, 55, 57, 79. 
 Aulocara, 31, 32. 
 
 Bacillinae, 19, 21. 
 BaciUus, 21. 
 
 Bactromantis, 16, 17, 18. 
 Bacunculinae, 19, 20, 72. 
 Bacunculus, 20. 
 Batrachideae, 23, 24, 73. 
 Belocephalus, 54. 
 Beta, 32. 
 Blatta, 13, 14. 
 Blattidae, 7, 8, 12,68. 
 Blattinae, 12, 13. 69. 
 Bliastes, 53, 78. 
 Boopedon, 29, 32, 74. 
 Bootettix, 26, 32. 
 Brachystola, 38 76. 
 Bradyiiotes, 44, 49. 
 Bnin'eria, 30, 32. 
 Brunneria, 17,32, 71. 
 
 Cacopteris, 56, 57. 
 Callimantis, 17, 18. 
 Camnula, 34, 37. 
 Campylacantha, 43, 49, 50. 
 Capnobotes, 55, 79. 
 Ceratinoi)tera. 14, 69. 
 Ceuthophili, 58, 79. 
 
 Ceuthophilus, 59, 61, 79. 
 Chimarocephala, 34, 37, 75. 
 Chloealtis, 28, 32, 73. 
 Chorisoneiira, 15, 70. 
 Chortophaga, 33, 37, 75. 
 Circotettix, 37, 75. 
 Clinocephalus, 28, 32. 
 Clinopleura, 50. 
 Coloradella, 32. 
 Conalcaea, 42. 
 Conocephalinae, 51, ,54, 78. 
 Conocephalini, 54, 78. 
 Conocephalus, 54, 78. 
 Conozoa, 37, 75. 
 Copio^ihora, 54, 78. 
 Corydinae, 13, 15, 70. 
 Cryptocercus, 15. 
 Cyclocercus, 42, 49, 50. 
 Cycloptilum, 64, 81. 
 Cyrtoi)liyllus, 53, 78. 
 Cyrtoxiphus, 65, 81. 
 
 Dactyloti, 40, 50. 
 Dactylotum, 50. 
 Daihinia, 9, 59, 60, 80. 
 Decticinae, 51, 55, 79. 
 Dendrotettix, 45, 49. 
 Derotmema, 36, 75. 
 Diapheromera, 20. 
 Dichopetala, 52, 77. 
 Dichromorpha, 28, 32, 74. 
 Dictyophorus, 40, 76. 
 Dissosteira, 35, 37, 75. 
 Dracotettix, 40. 
 
 Encoptolophus, 34, 37, 75. 
 Eneopterinae, 62, 05, 82. 
 Engoniaspis, 55. 
 Eotettix, 43, 49. 
 Eremnus, 32. 
 Eremobiini, 33, 38, 76. 
 Ereinopedes, 56. 
 Eritettix, 27, 32, 73. 
 EupnigO(les,30, 32. 
 Eurycotis, 14, 09. 
 
 Forflcula, 11, 68. 
 Forflculidae, 7,8, 11, 07. 
 
 (rammarotettix, 61. 
 rromphocerus, 30, 32, 74. 
 Gonatista, 17. 
 Gryllacrinae, 9, 51, 57. 
 Gryllidae, 7, 10, 62, 80. 
 Gryllinae, 62, 64, 81. 
 Gryllodes, 64, 81. 
 Grvllotalpa, 63, 80. 
 Gryllotalpinae, 10,62, 63, 80. 
 Gryllotalpini, 63. 
 
 Gryllus, 64, 81. 
 Gymnes, 26, 32. 
 Gymnoscirtetes, 41, 49. 
 
 Hadenoecus, 59, 61, 79. 
 Hadrotettix, 37. 
 Haldemanella, 38. 
 Heliastus, 37, 38, 75. 
 Hesperotettix, 44, 49, 50. 
 Hippi8cus,34, 37,75. 
 Homoeogamia, 15, 70. 
 Hormiliae, 52, 77. 
 Hypochlora, 43, 49. 
 
 Idionotus, 56, 57. 
 Idiostatus, 50, 57. 
 Ischnoptei-a, 13, 14, 69. 
 
 Labia, 11, 68. 
 Labidura, 11. 
 Lactista, 35, 37, 75. 
 Lepru8, 34, 38. 
 Leptysma, 41. 
 Leptysmae, 39, 40, 41. 
 Ligurotettix, 26, 32. 
 Litaneutria, 17. 
 Loboi)tera, 14, 69. 
 Locustidae, 7, 9, 51, 77. 
 
 Mantidae, 7, 8, 16, 70. 
 Mantinae, 16, 71. 
 Mecostethus, 29, 32, 74. 
 Melanopli, 40, 41, 76. 
 Melanoplus 22, 44, 47, 48, 
 
 49, 50, 76. 
 Mermiria, 26, 32, 73. 
 Mesopes, 39,40. 
 Mestobregma, 36, 37, 75. 
 Metaleptea, 32. 
 Metrypa, 60, 82. 
 Microcentra, 52, 53, 78. 
 Microcentrum, 53,. 78. 
 Mogosiplistus, 63, 64. 
 Monotettix, 24. 
 Myrmecophila, 02,03,64. 
 Myrmecoi)hilinae, 62,63,81. 
 
 Napaia, 27, 32. 
 Nemobius, 64, 81. 
 Neortus, 57. 
 Nyctobora, 14,69. 
 Nyctoborinae, 12, 14, 69. 
 
 Odonturae, 52, 77. 
 Oecanthinae, 62, 64, 81. 
 Oecanthus, 64, 81. 
 Oedaleonotus, 48, 50. 
 Oedipodinae, 22, 23, 32, 33, 
 74. 
 
Oedipodini, 33, 75. 
 Oedocara, 32. 
 Oligonyx, 17, 71. 
 Opeia, 27, 32. 
 Orchelimiira, 55, 79. 
 Orchesticus, 55, 57. 
 Orocharis, 66, 82. 
 Orphula, 29, 32, 74. 
 
 Panchlora. 15, 70. 
 Panchlorinae, 12, 15, 70. 
 Panesthinae, 13, 15, 70. 
 Paraidemona, 42, 49, 50. 
 Paratettix, 24, 73. 
 Paratylotropidia, 4C, 49. 
 Paroecantlius, 65, 82. 
 Paroxya, 46, 48, 49. 
 Paxilla, 24. 
 Pedeticum, 27, 32. 
 Pedioscirtetes, 26, 32. 
 Pelmatosilplia, 14. 15, 69. 
 Peranabrus, 56. 
 Pcriplaneta, 15, 70. 
 Periplanetinae, 12, 14, 69. 
 Pezotettix, 49. 
 Phaedrotettix, 42, 49, 50. 
 Phaneropterinae, 51, 52, 77. 
 Phasmidae, 7, 9, 19, 71. 
 Phasmomantis, 17, 71. 
 Phlibostroma, 29, 32. 
 PhoetalioteSj 47, 49, 50. 
 Plirixocnemis, 60, 80. 
 Phyllodromia, 13, 69. 
 PhyJloscirtus, 65, 81. 
 Plagiostira, 57. 
 Platamodes, 14. 
 Plectopterinae, 13, 15, 70. 
 Plectrophorus, 32. 
 
 Plectrotettix, 29, 32, 74. 
 I'nitiodes, 32. 
 Podisma, 45, 49, 50, 7(i. 
 Poec'ilotettix, 48, 49, 50. 
 Pseudophyllinae, 51, 53, 78. 
 Psendopomala, 40. 
 Pseudostauronotus, 32. 
 Psinidia, 36, 37. 
 Psoloessa, 29, 32, 74. 
 Pycnoacelus, 16. 
 Pyrgocorypha, 54, 78. 
 Pyrgomorphinae, 40. 
 
 Rhabdotettix, 42, 49, 50. 
 llhadinotatum, 25, 32. 
 Rhaphi(lopli()rini,57, 58, 79. 
 Rhomalea. 40, 76. 
 Rhomaleae, 39, 40. 
 
 Scapteriscus, 63, 80. 
 Scliistocerf^a, 41, 76. 
 Schizodactylus, 10. 
 Scirtettica, 35, 37, 75. 
 Scmlderia, 53, 78. 
 Scudderiae, 52, 53, 78. 
 Serinyle, 20, 72. 
 Spliaragemon, .35, 37, 75. 
 Spliingolabis, 11. 
 Spongophora^ 11, 68. 
 Stagmomantis, 17, 71. 
 Steiroxys, 56, 79. 
 Stenobothrus, 30, 32, 74. 
 Stenopelmatinae, 9, 51, 57, 
 
 79. 
 Stenopelmatini, 57, 79. 
 Stenopelmatus, 57, 79. 
 Stirapleura. 29, 31, 32, 74. 
 Stylopyga, 14, 15. 
 
 Syrametropleura, 53, 78. 
 Hyrbula, 27, 32, 73. 
 
 Taeniopodae, 39, 40. 
 Teinnoijtervx, 14, (i9. 
 Tettigiae, 23, 24, 73. 
 Tettigidea,24, 73. 
 Tettiginae. 22, 23, 72. 
 Tettix, 24, 73. 
 Theoclytes, 18. 71. 
 Thesprotia, 17, 71. 
 Thrinoini, 32. 
 Thyr.socera, 13, 14, 60. 
 Tiraeina, 20, 21. 
 Toinouotus, .35, 38, 75. 
 Trachyrachys, 37. 
 Trldactylini, 63. 
 Tridactyliis, ()3, 80. 
 Trigonidiinae, 62, 65, 81. 
 Trimerotropls, 37, 75. 
 Tropidacres, 39, 40. 
 Tropidacris, 40, 76. 
 Tropidischla, 58. 
 Tropidischiae, 58. 
 Troi)idol()i)hu,s, 35. 
 Tropidonoti, 39,40. 
 Trojiizaspis, 55. 
 Trvxalinae, 22, 23, 25, 73. 
 Tryxalis, 26, 32. 
 Tyttbotyle, 38. 
 
 Udeopsylla, 60, 01, 80. 
 
 Vatinae, 10, 18, 71. 
 
 Xiphidiini, .54, 55, 79. 
 Xiphidium, 55, 79. 
 
 Yersinia, 16, 18. 
 
 CORRECTIONS. 
 
 PAGE 
 
 30, line 1, read : Tenipora elongate. 
 
 42, line 13, for c read : d^. 
 
 45, last line but 3, read : {A^ U" & d'). 
 
 84, last line of note, read : dated, ix. Cal. Nov. MDCCCLIII. 
 
 I