332 Ltiftt. REESE LIBRARY JNIVERSITY OF CALIFORNIA. RHOPALOCERA NIHONICA A DESCRIPTION OF THK BUTTERFLIES OF JAPAN BY H. PRYER. YOKOHAMA: PRINTED AT THE OFFICE OF THE "JAPAN MAIL:" PUBLISHED BY THE AUTHOR. BIOLOGY LIBRARY G COLLECTING. Since publishing Part I. of this work, I have received suggestions that, as many of my readers have had little practical experience in Entomology, a few directions would be servicable, especially to my Japanese fellow workers. The apparatus required is as follows : 1. Net. 2. Cyanide Bottle. 3. Collecting Box. 4. Larva Box. 5. Chip Boxes. 6. Satchel. 7. Lantern. 8. Tin to hold Sugar. 9. Glass Tubes. 10. Setting House. 11. Glass Cylinders for rearing Larvae. 12. Cabinets. 13. Pliers and Dissecting Scissors. 14. The following Chemicals : Potass. Cyanide, Napthaline, Acetic Acid dilut., Plumbi Precip., Calcis Carb. 15. Pins. All apparatus used in the field should be as lightly made as possible. Specimens should be removed from the Net by means of the Cyanide Bottle, and when stupilied by the fumes, should be pinned through the side in the Collecting Box. The Net should be not less than 2 feet across the mouth, and not too deep. 'I he Umbrella Net is the most handy for use. The Cyanide Bottle should be of strong glass. I find the most servicable to be a smooth glass tumbler, with an India rubber stopper. The Cyanide is powdered and wrapped up in blotting-paper, and over this a piece of stout cardboard is placed. The Collecting Box should be 8 X 10 inches, lined with cork and double-bottomed, and have a strap by which to sling it over the shoulder. The Larva Box should be made of zinc with perforated sides ; this also should have a strap by which it can be slung over the opposite shoulder to that carrying the Collecting Box. The Chip Boxes should be made to fit one within the other, in nests. The Glass Tubes should have cork stoppers and should be from I to I inches deep. The Satchel should be made so that it easily opens and shuts, with a flap to prevent the con- tents being jerked out when running. The Setting House is a very important item, and should contain RHOPALOCERA NIHONICA. not less than 30 feet of setting boards ; it should be very strongly made to withstand rough usage when travelling. The boards should be made of soft wood, with cork or pith in the groove, and when thev are put away in the house, they should stand perpendicularly, to prevent the bodies of the specimens becoming distorted, while drying. They should be perfectly flat and all of the same depth, not less than one inch- The cages for rearing larvx should be open Glass Cylinders, the tops being covered with net; they should stand on earthenware plates, each plate having a hole drilled in the middle, through which the stalk of the plant, on which the larva feeds, is immersed in a vessel holding water underneath. The Cabinet is, perhaps, the most important of all, as, unless it is a good one, the results of the collectors' time and trouble will be spoilt. After very many experiments, I find the best wood for the drawers to be the red wood of the cherry; any fancy wood not given to warping or giving off resin, may be used for the case, but camphor wood, keyaki, cedar, pine, &c., are most unsuitable. The drawers should be 14 in. long by 21 in. broad, and will then hold one dozen small size sheet-cork, as it is a great advantage to have as many as possible of a genus under observation at the same time. All drawers should have air- tight lids, and for butterflies it is useful to have both the tops and bottoms of glass. For the latter, a narrow strip of cork is fastened between thin pieces of wood ; this is laid on the bottom and secured in' position by means of a rack arrangement, which permits of the cork being shifted nearer or further apart, as required by the size of the specimens. For moths it is only necessary to have the lid of glass, the bottoms of the drawers being lined with cork and papered. The drawers should be of sufficient depth so that the heads of the pins do not touch the glass lid, or say if in. inside measurem ent. The sides should be double, and the lid have a deep flange fitting accurately into the cavity thus formed. The drawers should be supported on side runners, and all should be made exactly of the same gauge, so as to be interchangeable, if necessary. Only the very best workmanship should be em- ployed, so that neither moisture nor insects can obtain access to the contents. The Pins for all Macro-lepidoptera should be of a uniform length, but of different degrees of thickness. Those for Micro- lepidoptera should be smaller. The Pliers should be turned up at the point and the inner sides provided \vitha pin and socket. The Scissors should have fine points they are used for opening the abdomen of all large moths, the contents of which should always be extracted. Only the best Cyanide should be used ; it is generally in thin cakes, and when 'its action is sluggish, it can be freshened up by the addition of a few drops of vinegar. Napthaline placed in a pocket between the double sides of the drawers, is the best protection against the attacks of insects.' Plumbi Precip. and Calcis Carb. sprinkled over the bottom of the drawers, although somewhat unsightly, will in damp climates keep away mould and acari. If, however, mould appears persistently, the drawers should be placed round a bright fire, some six feet distant, with the lids removed, for several hours, at intervals of a few days. As a substitute for this method, a small quantity of. Calcis Chloride, placed in a small pan in each drawer, for a short time, should be sufficient to absorb all moisture. Camphor is worse than useless, as it only damages specimens, instead of acting as a RHOPALOCERA XIIIOMCA. in preservative. To kill specimens, a drop of table vinegar or Acetic acid dilut. (not too strong,) should be taken up on an ordinary pen. The insect is laid on its side, the pen is thrust into the under side of the thorax, and the acid allowed to flow into the wound. No freshly caught specimens, although apparently dead, should be set out, until this is done. In setting insects, I find from experience that what is known as the Continental system is the best ; in fact the English system is a decided mistake. The advantages of the Continental system are, that the specimen is set high up the pin, perfectly flat, with the wings well forward. In this position it is easy to figure accurately, there is plenty ot room unocf uealh for labels recording references of date, place of capture, &c. ; specimens so set are not liable to the attacks of mould and insects, and they can be moved with less risk of breakage. To keep the wings in position while drying, I use narrow silk ribbons, varying in width from i to \ an inch, for the larger speci- mens, and a long stout horse hair for the smaller; this is pegged down by short stout pins which carry small fragments of cork. To obtain specimens, the most satisfactory method is to rear them from the larval stage ; better specimens are secured, and their life history and affinities can only thus be accurately studied. This method, moreover, will always prove of great interest and give much instruction to the observer. In searching for larvx, it should be remembered that every part of a plant supports them ; some feed on the leaves, others on the stem, bark, flowers, seeds, roots, fungi, lichens (many lichen feeders mimic their food, or pile it on their backs), dead tissue, such as cloth, dried specimens, dead leaves, &c. A great many Tinex pass their whole larval stage between the inner and outer cuticles of leaves. Many larvae can only be obtained at night, by means of the sweeping net, which is strongly made of canvas and swept rapidly backwards and forwards, over low herbage. Beating the overhanging branches of trees into an umbrella, or beating net, is another effective way of obtaining larvae. Preserving Larvx. About twenty years ago, I first published instructions how to preserve larva?, by in- flating them over a spirit lamp until dry. This process has since been considerably improved, and with patience and practice, many beautiful specimens may be preserved. Roughly speaking, the process is as follows: the larva, which should be kept without food for a day, is immersed in a strong solution of alum water; the inside is pressed out on blotting paper and the empty skin inflated by means of a glass pipette, over a spirit lamp enclosed in a tin box, until perfectly hard. The tin box which encloses the spirit lamp, is open at the front ; the flame is kept from scorching the skin by an inner protector of per- forated zinc. The pipette must be bent almost at right angles and must have a round bulb in the middle. Pupa-digging and raking should be prosecuted during the autumn and winter, when specimens cannot be obtained in the perfect state. Large isolated trees should be selected and the moss and earth from immediately round the base of the trunk, should be shaken over a sheet of paper. Many moths mimic the bark of trees, and the trunks should therefore be carefully searched, it being often necessary to blow into the crevices before the insect can be dislodged and seen. An effective way iv RHOPALOCERA SIHONICA. of dislodging moths from close low herbage, is by means of fumigators, similar to those employed in conservatories. Light is also a very productive method of obtaining moths. Gas-lamps on the outskirts of towns yirlN. read /)/#'. For immutitality read immutability. For real)' read really. For yl/. megameru, But. (Pieridae) 6 14 SB. Pieris napi. Linn. p. melete, Me"n 6 14 PLATE 4. Curetis acuta, Moore. Niphandafiisca, Brem & Grey, do Dipsas scepestriata, Hew. lutea, Hew. jonasi, Janson. Thecla smaragdina, Brem. ) ) i > > ,, japonica, Murray. caanidae)... ii 26 do. 1 1 26 do. 13 3 do. 13 3i do. 13 3 2 do. 13 33 do. '3 34 do. 13 34 do. 14 35 do. 3S do. J J 3S do. J J 3S XII RHOPALOCERA NIIIONICA. Fir.. 8A. SB. 9A. 98. 10 1 1 12 14 '5 16 7 18 13 19 20 21 22 2 3 A. 238. 24 A. 24B. 240. 25A. 2 5 B. IA. IB. 1C. 2 3 A - SB. 4A. 4B. 5 6 7 8 9 10 Thecla orientalis, Murray. (Lycaenidae) ,, ,, ,- do. ,, saphirina, Sulgr. do. ,, ,, do. ,, arata, Brem. do. ,, allilia, ,, enihea, Janson. w-album, Knocli. ,, pruni, Linn. mera, Janson. ,, orsedice, But. ibara, ,, butleri, Pent. ,, signata, But. frivaldszkyi, Led. Polyommalus phlixas, Linn. Lyccena bcetica, Linn. ,, argiadfs, Pall. PAOE. . 14 14 argia, Men. do. do. do. do. do. do. do. do. do. do. do. do. do. do. do. do. do. do. do. 15 '5 15 15 15 15 15 16 16 16 16 16 i7 17 17 17 argiolus, Linn. > PLATE 5. LyccEtia argus, Linn. (Lycanidae) ,, ,, ,, do. .......... ,, ,, do. ,, agon, Schiff. do. Lyccena lycormas, But. do. ,i ,, ,, do. eitphemus, Hb. do. ,, ,, ,, do. ,, iburiensis, But. do. Etiripus charonda, Hew. (Nymplialidae) Limeiiitis populi, Linn. do. Euripus japonica, Feld. do. Apalura ilia, Schiff. do. Dichorragia nesimachus, Boisd. do. 18 18 18 18 '9 22 23 23 22 No. 36 3 37 37 38 39 40 42 43 44 45 46 47 48 49 5 5' 52 52 55 55 53 53 53 54 56 56 58 58 59' 63 65 64 62 61 FIB. I 1 12 '3 H 15 16 Vanessa burefana, Brem. (Nymplialidae). levana, Linn. do. Libythea lepita, Moore (Lemonidse) Cyreslis thyodamas, Boisd. (Nymplialidae) Limenitis sibylla, Linn. do. Lycana pryeri, Murray. (Lycasnidse) P.UiE. No. . 25 74 24 73 .21 6O 23 67 23 66 - 18 75 i 2 3 4 5 6A. 6n. 7A. 7B. 8 9 10 1 1 i 2 3 4 5 6 7 SA SB. 9 10 ii 12 I IA 2 PLATE 6. Neptis aceris, Lep. (Nymphalida;) .. excellens, But. do. ,, pryeri, But. do. Neptis alwina, Brem., Grey. do. Kept is hicilla, Schiff. do. Vanessa c-album, Linn. do. ,, ,, do. Vanessa c-aureiim, Linn. do. urticix Linn. do. ,, v-albnm, Hubn. do. ,, xanlhomelas, Schiff. do. ,, 10, Linn. do. PLATE 7. Vanessa antiopa, Linn. (Nymphalidae) .. ,, cardui, Linn. callirhoe, Fab. ,, charonia, Drury. Alelilcca phcr.be, Schjff. athalia, Rott. ? Argynnis niphe, Linn. do. do. do. do. do. do. do. do. do. do. do. do. ,, daphne, Schiff Atella phalania, Drury. Argynnis aglaia, Linn. adippe, Linn. PLATE 8. Argynnis nerippe, Feld. (Nymphalidae).. . ., ,, (do.) ,, anadyomene, Feld. (do.) 24 68 24 69 24 70 24 71 24 72 2 5 75 ... 75 25 77 ... 77 26 79 25 76 26 78 26 80 26 Si 26 82 26 83 27 S 4 27 85 27 86 27 87 28 89 ... 89 ... 90 27 88 28 91 ... 92 28 93 - 93 ... 94 RHOPALOCERA N I II ON 1C A. XIII FlU. I'.KiE. NO. 3 Argyiinis sagana, Doubl. (Nymplialidae) 95 4 papliia, Linn. (do.) ... 29 96 5 laodice, Pall. (do.) 97 6 ,, ruslana, Motsch. (do.) 98 7 Meltinitis ismfiie, Moore. (Satyridae) ... 30 100 ,, lu/a, Linn. (do.) ... 30 101 y /)jfiaii lyti'i, Gray. (Danaidae) ... 29 99 PLATE 9. 1 Mycalcsis golama, Moore (Satyridce) 30 103 2 ,, perdiccas. Hew. do. 104 3 ypthima bahlus, Fab. do. 105 4\. Erebia sedakovii, Ev. do. 31 106 413. do. 106 5 Salyrus drvas, Scop. do. 107 6 Pararge achine, Scop. do. 108 7 ,, deidamia,TLv. do. 109 nuiackii, Brem. do. lio 9 LasiommataipimenideSjWlifi. do. 111 10 Lethe sicelis, Hew. do. 32 112 11 Neope gaschkei'itschii, Men. do. 115 12 Lethe diana, But. do. 113 PLATE 10. 1 Pronophila schrenkii, Min. (Satyridae) 32 114 2 Neope calipteris, But. do 116 3 CIK /I/my mpha icdipus, Feb. do 117 FIG. PAGE. No. 4 Ismtnt btnjaminl, Gudr. (Hesperitlse) ...... 33 ri8 5A. Pythauna chrysa'glia, But. do. ......... 119 SB. ...... - ... 119 6 Daimio tcthys, Murray do. ......... 120 7 1'amphila mathias, Fab. do. ......... 121 8 lamprospilus, Feld. do. ......... 122 9 ,, varia, Murray do. ......... 123 10 gttttata, Brem. do. ...... 34 124 11 ,, pellucida, Murray do. ......... 125 12 ,, Jansonis, But. do. ......... 126 i3/\. Hesperia sylvantis, Esp. do. ......... 127 I4A. I4B. comma, Linn. do. ......... 128 ......... 128 ......... 129 ......... 130 ......... 130 ...... 35 131 ......... 132 15 leonina, But. do. i6A. ,, rikuchina, But. do. 160. 17 flava, Murray do. 18 ,, sp. ? do. 19 Cyclopidts ornatus, Brem. do. ......... 133 20 Pyrgus inachus, M^n. do. ......... 134 21 Syrichthus macula/us, Brem. & Grey (Hes- peridae) .......................................... 135 22 Syrichthus sinicus (Hesperidas) ............... 136 23 Nisoniades monlanus, Brem. (Hesperidae) ..... 137 24 Melanitis n. sp. f (Satyridas) .................. 30 102 RHOPALOCERA NIHONICA. Order LEPIDOPTERA. Sub-order RHOPALOCERA. The order Lepidoptera is divided into two sub-orders, Rhopalocera and Heterocera. The former includes all the butterflies and the latter all the moths. Butterflies can be roughly distinguished from moths by the following points : They are almost without exception day flyers, and always have more or less clubbed antennae. Moths fly day and night, and generally have simple or pectinated antennas. This is not, however, an invariable rule, as we have many families of moths with antennas thickened towards the point. This book treats of the butterflies only, and is the result of sixteen years' constant attention to the group in every part of these islands. The butterflies of Japan are a particularly interesting study, not alone to the Entomologist, but also to the general student. We have in this country direct evidence of the transmutation of species, many Japanese butterflies appearing under perfectly distinct alternate forms at different times of the year; these forms of the same insect are often more distinct than undoubted species of the same family. 1 have proved, by breeding, that this multiplicity of form is caused by temperature affecting the insect during its larval stage, and I have produced them artificially. I have styled them temperature forms. The reason of these strange temperature forms appearing naturally, in Japan, is primarily owing to the exceptional amount of change in climate which takes place during the year, and also to the geographical position and con- formation of this country. It is, and has been for long ages, a veritable battlefield in the struggle for exist- ence for the species inhabiting it. At a not very remote period, geologically considered, these islands appeared above the waves as a chain of high mountain peaks, relics of an ancient continent, similar in appearance to what we see the Kurile Islands now are on the map ; the spaces between these old peaks have been filled in principally by recent volcanic agency. \ RHO PALO CERA MHOMCA . The fauna is decidedly Palasarctic, but we have a good many wanderers from the Oriental region. We have in Japan an admixture of tropical, temperate, and arctic species meeting together in the same area, many of which still continue to find their way here by different routes, this being doubtless the cause of another peculiarity in the Japanese fauna, to which I have called attention under the heading of " dual " or twin species. That communication is continuous, is evident from the fact that we find some species presenting no points of difference, while in others it is most marked ; the former are able to breed true to their ancestral type, owing to frequent immigration, and those which differentiate most strongly have been isolated longest. Butterflies exhibit forms in process of transmutation in greater numbers than perhaps any other class of organizations, for, from their structure and wandering habits, they are able to spread over large areas, and, during the space of a single year, many species pass through several generations. They are thus constantly subjected, in the never-ceasing battle of life, to ever-varying conditions of existence. I have met with some amount of opposition to my views on this subject from the hands of closet naturalists, who are accustomed to " museum series " only, the dispute between the field observer and the book-making describer being, even yet, very keen. So many new systems of classification having been proposed of late years, I think I need not apolo- gize for using in this book an old one, which, notwithstanding many defects, is at any rate the most con- venient for my purpose. My specimens have all been named by Messrs. Butler and O. Janson, and 1 am therefore not accountable for any errors in nomenclature, but at the same time I must call attention to the fact that many specimens named as distinct by Mr. Butler have afterwards proved to be forms of long known species, and, where I have been able to detect these errors, I have included them in the list of synonyms. The following Families are represented in Japan : Papilionidae it species. Pieridae 12 ,, Lycaenidse 36 ,, Lemoniidae i ,, Nymphalidae 38 ,, Danaidae i )( Saty ridse 1 8 ,, Hesperidae 20 ,, RIIOI'A LOCERA XI HONK '. \ . Family PAPILIONIDvE. Genus I'Al'IUO. 1. Papilio machaon, L. (Pi. i. fig. I-A, i-u.) iisiiificti, But. Hippocrates, Fcld. Localities Main Island, Ye/o. Food plants Cultivated nmbellifeiae, carrot, fennel, &c. '1'ime of appearance From Maich until tlie end of summer. The first imago appear in March from larva which have fed up late in the preceding autumn. These March specimens are invariably small and light colored (fig. I-B), and are the machaon form. As the summer advances the successive broods increase in size and depth of coloration until August, when the hippocrates (fig. I-A) form appears. It is a very abundant insect, and often strips fields of carrots of their leaves. 2. Papilio zuthus, L. (PI. i, fig. 2- A, 2- u.) xut/iiihis, Brein. Localities Main Island. Food plants -'E^le sepiaiia O.C., Xanlhnxylon schlnnifolium S. & /.. Time of appearance From March until tlie end of summer. Like the preceding species, we have an early spring form, xutliulus (fig. 2-A), and a summer form, xutlius (fig. 2-B). Machaon is a plant feeder, xuthus a tree feeder. The larva of the two species are very different in appearance, the difference being greater even in the larval stage than in the imago. The female of xutlius is dimorphic, one form being light yellow and the other much darker. 3- Papilio maacki, Men. (Pi. i, fig- 3-) dehaani, Feld. bianor var japunica, But. tutanns, Fen ton. Localities Yokohama, Yezo, and the mountains of the Main Island generally. Food plant /Ex' e sepiaiia and other kinds of orange trees. Time of appearance From April until the end of summer. This beautiful insect varies greatly, from green to purple blue ; some specimens have a row of red spots on the hind wing which is absent on others. It also varies greatly in size and markings. This species extends furthest north of any of the black Papilios. It is an extremely difficult insect to figure. The larva very much resembles that of P. xutlius, although the perfect insect differs so greatly. RHOPALOCERA NIHONICA. 4. Papilio demetrius, Cr. (Pi. 3. fig- !) Localities Main Island. Food plant /Egle sepiaria, D.C. Time of appearance From April until the end of summer. The larva is very similar to those of the two preceding species, exactly reversing the case of machaon and xuthus. The hind wing of the male is ornamented with an oval greenish-white patch con- cealed below the fold of the fore wing. This is, as a rule, hardly visible, but is displayed by the male when courting his mate. Demetrius and macilentus are perhaps " dual " species. 5- Papilio macilentus, Janson. (Pi. 3. fi g- 2 Localities Rare about Yokohama, but more abundant in the mountains of the Main Island. Time of appearance From May and during summer. The female is very seldom to be obtained. The male, which is ornamented exactly as in the preceding species, is, in its first brood, often very diminutive, and I have captured them less than half the size of the female specimen figured. I have not yet found the larva. This species is specially adapted to fertilizing Lilies, the pollen from the flowers, which it frequently visits, adhering to its long hind wings and tails. 6. Papilio alicinous, King. (Pi. 3. fi g-3-) Localities Main Island. Food plant Cocculus thunbergii, D.C. Time of appearance From April until the end of summer. The female of this species is dimorphic in China and the Ryukyu Islands, being sometimes nearly as black as the male, and sometimes buff, but I have never seen any but the last-named form in Japan. The male emits a peculiarly sweet, musky odour when alive. The female also emits a fainter odour, but to me this is as unpleasant as that of the male is pleasant. It is one of the most abundant Papilios, and is easily caught. The larva resembles a partially ripe mulberry, and the pupa is most beautifully sculptured. 7. Papilio Menus, L. (Pi. 2, fig. 2.) Localities Nagasaki and Tosa. Time of appearance May and summer. This is a southern insect, and I have not seen it further north than the Island of Shikoku. The large white patch on the hind wing makes it a very conspicuous object. It has a fine rapid, bold flight, and constantly returns to the same spot. The female is. rare. 8. Papilio memnon, L. (Pi. 2, fig. i.) Localities Nagasaki. Time of appearance May and summer. This is the largest Japanese butterfly. I have not seen it, in Japan, north of the Island of Kyushyu. RHOPALOCERA NIHONICA. The male is much less ornamented than the female, and is generally jet black, with a faint red patch at the base of the fore wing. The female is very conspicuous, and, from the contrast of its colours, appears much larger than it really is when on the wing. A tailed form is found in China, but I have not seen it in Japan. Those females I have seen here are also darker than Chinese specimens. 9- Papilio sarpedon, L. (PL i, fig- 9-) Localities Main Island. Food plant Machilus thtmbergii /.. and B. Time of appearance April until the end of summer. Very abundant. The larva feeds on the young leaves of the evergreen Machilus, their colour resem- bles very closely that of -the young green leaves of this tree. 10. Luedorfia puziloi, Ersch. (Pi- ', fig- 10-) Localities Yezo, Gifu. Time of appearance Early in April. This is a rare insect, and I have not yet seen a perfect specimen. It is found early in the year on high mountains. 1 1. Parnassus glacialis, But. (Pi. 3, fig- 5.) Localities Nikko, Yezo. Time of appearance June, July. This is a mountain insect. Some specimens are suffused with smoky black, and it varies greatly in markings. The female often has a horny sheath to the abdomen, but I do not think the use of this has yet been discovered. Family PIERID/E. 12. Aporia crataegi, L. (Pi- 3. fi g- 7-) Locality Yezo. Food plant Apple trees. Time of appearance Summer. This is abundant in Yezo, but I have not seen it south of that Island. RHOPALOCERA NIHONICA. 13- Pieris rapx, L (Pi. 3. fi g- 6 -) crucivora, But. Localities All Japan. Food plants Cultivated cruciferje, sucli as daikon (radish), cabbages, &c. Time of appearance March to November. Varies much in size. The Japanese specimens have been mistaken for Pieris brassicx, vide Mr. Elwes, P.Z.S., Nov. I5th, 1881, but this latter species does not occur in Japan. I noticed immense swarms of P. rapx flying across the Bay of Kagoshima this year, but did not see any further south. H. Fieris napi, L. (Pi. 3. fig- S -A., 8-n.) megamera, But. nielete, Men. Localities Main Island, Ytzo. Food plant An uncultivated crucifer, Arabis hirsuta, Scop. Time of appearance March to October. The imago first appears in March, form megamera; it is then a very different looking insect from the succeeding broods (form melete}. It varies in size from if inches to 3 inches. For many years after I first commenced collecting here, I was surprized to find that what was then known as megamera, only appeared once in the year, March and April, after which it entirely disappeared ; nearly all the other Pieridae being many brooded. I was therefore very anxious to ascertain what became of the larva from April until the next autumn, or whether it remained for the whole summer, autumn, and winter in the pupa state. To obtain the unknown larva of a butterfly is a particularly difficult task ; the food plant has to be discovered and the females induced to lay their eggs. By spending many days in early spring watching the females, I was at last rewarded by seeing one busily depositing its eggs on Arabis hirsuta, and from these I reared the entirely different form, melete. I was not unprepared for this result from my discoveries of a like change of form in Papilio xutlius and xuthulus, &c. 15- Anthocaris scolymus, But. (Pi- 3, fig. 4-A., 4-6.) Localities Yokohama, Niklco. Food plant Cardamine sylvatica, Sink. Time of appeaiance March, Apiil. This insect undoubtedly only appears once during the year. There are no allied forms, and it is the only representative of the genus in Japan. I know little or nothing concerning its life history beyond the fact that it feeds upon a bitter cress, common in marshy situations. RHOPALOCERA NIHONICA. 1 6. Leucophasia sinapis, L. (Pi- 2, figs. 7 and 8.) amurensis, Men. vilibia, Janson. Localities Fujisan, Asama-yama, Yezo. Time of appearance July, August. In the southern parts of the Main Island this is only found on the mountains, but in Nambu and Yezo I believe it inhabits the plains. It is an open question whether vilibia is distinct from amurensis, and this can only be determined by breeding. As it is not found in the Yokohama district, I have no opportunity of testing this, and must leave it to entomologists more favourably situated. It is probable that vilibia and amurensis are "dual" forms, if not species. I have figured the two most dissimilar speci- mens I could find. 17- Ehodocera maxima, But. (PI. 2, fig. 5.) Localities Yokohama, Olioyamn, Asama-yama. Time of appearance May, July. This has a much more robust appearance than the following, and contrary to the opinion I have expressed elsewhere (Trans. Asiatic Society of Japan, May yth, 1883), I now believe it to be perfectly distinct, as, during the year 1885, I captured both maxima and acuminata freshly emerged at Asama-yama, and was then able to compare them under a favourable aspect, which I had not had the opportunity of doing before. I have frequently obtained males only, in the spring about Yokohama, but never saw a female here, and think they must be strays from the lower mountains in the vicinity. It undoubtedly hybernates. 18. Ehodocera acuminata, Peld. (Pi- 2 - fig- 6.) Localities Nikko, Asama-yama, Yezo. Time of appearance July. This species is only found, where I have collected, at a considerable elevation, but it inhabits the plains in Yezo. Many insects in South Japan are confined to the mountains, but are found lower down the further we go north. I have seen none of the preceding species from Yezo, where it appears to be wholly replaced by the present. In the case of maxima and acuminata we have an excellent example of the "duality '' of species. 19. Colias palaeno, L. (PI- 2, fig- 3-) Local i lies Asama-yama. Time of appearance July. This butterfly has a most extensive rang, from Iceland to Central Japan, where it has its habitat at an elevation of over 6,000 feet. I have seen it commonly at the Yu-no-taira on Asama-yama. Owing to KHOPALOCEKA AY//0A7C \l . the irregular nature of the ground, which is composed of loose, volcanic scoria;, it is most difficult to cap- ture. It never seems able to stray far from this place, and may be seen beating up and down, but never descending below this bleak and cold locality. 20. Colias hyale, L. (H. 2, fig. 4 - A ., 4 -n.) simotia, Del Oiva. eraie, E^p. stibaurata, But. elwesii, But. Localities Main Island, Yezo. Food plant Leguminous plnnls. Time of appearance February to November. This is one of the most abundant butterflies about Yokohama, and is the first harbinger of spring. It may often be seen flying about a warm sunny bank by the middle of February, when the snow is still on the ground. These are not hybernated specimens, but freshly emerged, as I have often taken them then with their wings hardly dry. The female is dimorphic, having a yellow and a white form. The difference between a summer and a winter specimen is most marked, both in colour and size. It is found commonly both on the plains and mountains. I have figured an exceptionally large female of the late summer brood, and a male of that appearing in February. 21. Terias multifbrmis, H. Pryer. (Pi- 2- fig. y.\, yu.) hecnbe, L. mandarina, Del Orza. hecabeoides, Men. sineiisis. iiinresi, But. anemone, Frl. connexiva, But. cesiupe. Men. brenda. sari, Hors. Localities Central and South Japan. Food plant Lespedeza juncea, Pers. Time of appearance March (hybernated specimens) to December. To the naturalist, this is the most interesting of all the butterflies of Japan, and therefore demands a careful account of its very extraordinary life history, which I will give as fully as I have been able to elucidate it. In the first place, I find, from observations of my own and fellow workers, that no species of the genus Terias have as yet crossed the Straits of Tsugaru, between Yezo and the Main Island. Mnltiformis is RlIOrALOCER. I NIHON1C. \ found southward from Japan to Australia, and westward as far as Africa, but the Main Island of Japan is probably its most northern limit. It is not known in Amurland. Many years ago, I observed a hybernated female, of the form mandarina, depositing its eggs on Lespedeza juncea. From these eggs I was greatly astonished by breeding several of the form hecabe, which had been described by Linnaeus, and well known for over 100 years. This was so unexpected and contrary to all the then accepted ideas concerning the immutatdity of species, that I suspected some eggs or larva of hecabe had strayed into my breeding cages, and hesitated to publish my discovery without further corroboration. In following years I again and again tried the same experiment, with the same results, and then sent an account to the London Entomological periodicals, where the statement was, and still is, received with incredulity ; but, as I am sure, it is a positive fact, and it will be easy for any one who may doubt it to undertake the task of investigation. I know that several eminent describers have spent a lifetime in separating the forms of this species, and they naturally feel annoyance that I should have so outrageously upset their pet theories and proved that they have been engaged in a useless letting down of " bottomless buckets into empty wells and drawing nothing up." A fine illustration of this sort of work is Mr. Butler's paper on the Japanese Terias, published in Trans. Ent. Soc. London, 1880, Part 4, the only reafy useful part of which is the coloured plate accompanying the paper ; it gives a series of forms, all multiformis. By placing half of a brood of larva in a cool place and half in a warm one, I have simultaneously produced a mixture of the two forms, some perfect hecabe (hot), and some mandarina (cold), at a time of year when naturally only hecabe is found. With reference to Mr. Butler's remarks concerning hybrids, Trans. Ent. Soc. London, 1880, Pt. 4, genuine hybrids do actually occur between hecabe and mandarina naturally. Mandarina appears on the cold mountains much earlier than on the plains, and these fly down and mix with hecabe, producing one or more broods late in the autumn, of numberless intermediate varieties, showing all transitions between the two parent forms. This insect is a most excellent illustration of the transmutation of species. If it could be transported to a cold, even climate like England, only the mandarina form would be found, and its connec- tion with hecabe would not even be suspected, as they differ in every respect as much as any two species of the family; with an increase in temperature in Japan, mandarina would disappear, and only the hecabe form would be found, as at Singapore and other tropical places where I have collected. The hecabe form is one of the butterflies the males of which are supposed to be more numerous than the females, but this is not a fact, as I find, when breeding them, that both sexes are about evenly represented. The males are fond of settling in numbers on damp spots in pathways, or flying about in the open, and are easily captured in large numbers. The females have to be sought after among the herbage and undergrowth, and are much less easily found, and this is the reason of the apparent disproportion of the sexes ; the result of the difference in habits of the sexes is seen in the different colour of the males and females, the males are always a bright yellow and the females much lighter, the latter being much less exposed to the action of light. These remarks apply only to the hecabe form, and not to mandarina. The latter appears during io RHOPALOCERA N/HONICA. the colder period, when the habits of the two sexes are more alike, and there is, in the mandarina form, less difference in the coloration of the two sexes, a number of specimens then collected at random will be found to show a greater proportion of both. In the figures, I have given the two extreme forms of mandarina and liccabe. 22. Terias laefca, Boisd. (PL 2, fig. io.) Terias j 7c, 70.) T.fasciata. Janson. T. regina. Butler. Localities Yokohama, Aama-yama, Nikko, Yezo. Time of appearance on tlie plains, May to July; on the mountains, July and August. 36. Thecla orientalis, Murray. (PI. 4, fig.'SA, SB.) Localities Yokohama, Nikko, Asama-yama, Yezo. Time of appearance Exactly the same as the preceding species. 37- Thecla saphirina, Stdgr, (Pi. 4. fig. QA, 93.) Locality Yezo. These four form another very distinct group. The males of all four are a most vivid iridescent green. The females of two, T. orientalis and T. sapharina are dull brown. The female of T. smaragdina has, in all the specimens I have seen, a patch of yellowish brown on the fore-wing, while the female of T. japonica is polymorphic and very variable. One polymorphic form of the latter is entirely brown, another has a large patch of shining blue on the fore-wing, a third has a yellowish brown patch on the fore-wing, whilst a fourth has both the blue and yellowish brown ; specimens showing a mixture, in every degree of variation, can often be found. Coloration of the female, however, depends greatly upon temperature, as the further north we go, or the greater altitude the specimens are obtained at, the more blue they will, as a rule, exhibit. Mr. Butler has been led from this cause into naming a boreal form, as a distinct species ; a very uncalled for proceeding, only tending to produce further con- fusion, in an already complicated group. T. otientalis has also a boreal form, with smaller and sharper outline, which so far has escaped the lust of this insatiable 'species maker.' The males of T. japonica are very pugnacious; the Alder is their favourite tree, and they sit on its leaves waiting for any passing rival. With regard to T. smaragdina, I was of opinion that it might possibly be a hybrid, but I now think this can hardly be the case, although I have had as yet, no means of testing the point by breeding: but if it be not a hybrid, we have here another case of 'duality ' between it and T. japonica. The best proof that T. smaragdina is probably not a hybrid, is that it is neve'r found about Yokohama, where both T. oriental's and T. japonica are abundant. The normal form of the females of all the four species retains the ancestral dull color, but in T. japonica there are abnormal forms, particu- larly boreal, having many degrees of bright colciration, although perfectly distinct from the color of the male, which is green, the female being blue. This last species is therefore evidently in a state of transition. The females of the Dipsas group have attained the same amount of coloration as the males. The females of Thecla japonica are undergoing the same process, although the 'species maker ' has done his worst to obscure this important fact. RHOPALOCERA NIHONICA. 15 3 8 - Thecla arata, Brem. (Pi- 4, fig- 10.) Localities Nikko, Fujisan, Gifu, Yezo. Time of appearance May to July. This is a very beautiful mountain insect. Both sexes are nearly alike. 39- Thecla attilia, Brem. (Pi. 4, fig- n) Locality Yokohama. Time of appearance May lo July. This is the most abundant Thecla about Yokohama. The markings on both the upper and under sides vary considerably. In many specimens there is no trace of the greyish white spots on the upper side of the hind wing, and the markings on the under side differ considerably. 40. Thecla enthea, Janson. (Pi- 4, fig- 12.) Localities Nikko, Yezo, Asama-yama. Time of appearance July. This is not uncommon at Nikko, and is abundant at Asama-yama. 41- Thecla w-album, Enoch. (PL 4, fig. 14.) Strymon fentoni, But. Locality Yezo. This Thecla is common in Yezo, and varies considerably in size. Mr. Butler has unfortunately obtained a rather large specimen, which he has named Strymon fentoni. It is figured in the "Aid," Part. 14, pi. 115. I have several female specimens of T. w-album which correspond with the figure, and find that the white line on the under side is very variable. 42. Thecla pruni, Linn. (PL 4, fig- 15-) Locality Yezo. I have a single example, taken by my collector in Yezo. 43- Thecla mera, Janson. (PL \, fig. 16.) Localities Nikko, Asama-yama. This is a dull-colored and somewhat rare species. 44. Thecla orsedice, But. (PL 4, fig. 17-) Localities Nikko, Ontaki-san. Time of appearance July. 1 6 RHOPALOCERA N I MONICA. This Thecla resembles in the coloration of its sexes a widely different member of the Lycaenidae, Lycxna argiolus. The male is a plain blue, the female is blue with a heavy border of black. The latter is excellently figured in the "Aid," Part 13, p. 107. This resemblance of coloration is very remarkable, and is an example of the recurrence of similarity in the ornamentation of the sexes in two widely sepa- rated species of the same group of insects. 45- Thecla ibara, But. (PL 4, fig. 18.) Locality Nikko. I have a single specimen from Nikko. This species is excellently figured in the "Aid," Part 14, pi. 113. 46. Thecla butleri, Pent. (PL 4, fig. 13-) Locality Yezo. This is also a rare species, and I have only a single example from Yezo. 47- Thecla signata, But. (PL 4, fig. 19.) Locality Yezo. This species is not uncommon in Yezo. I have several specimens; they all vary considerably in the markings on the under side. 48- Thecla frivaldszkyi, Led. (PL 4, fig. 20.) Locality Yokohama. Time of appearance March. '1 his is one of the earliest butterflies to appear. It is far from an uncommon species, but owing to its habits is very likely to be unnoticed by the collector. It has a very rapid flight, and always perches on a high spray, generally having a favourite leaf from which it makes excursions, chasing any passing object until tired, and then returning to its original perch. Only one brood appears during the year, and this very often when the snow is on the ground. 49- Polyommatus phlseas, Linn, (PL 4, fig. 21.) P. cliiiiensis, Feld. P. elens, Fab. Locality Yokohama. Time of appearance March to November. Food plant Rumex acelosa, Linn. . This species varies greatly in size and coloration according to the time of year that it emerges in the RHOPALOCERA X/IIOXICA. 17 perfect slate ; early spring forms are small and brightly colored, often with a row of blue spots on the back margin of the hind wing, but as the temperature increases they become larger and darker until they reach a size nearly twice that of English specimens. During the hot months the males are often quite black, and this continues until the last brood in November ; a difference of 20 miles is, however, sufficient to account for small light-colour males appearing in one locality and black males in another. Some years ago, in this month, i.e. November, I collected the small light-colour males in the neighbourhood of Yoko- hama, and the next day took black males in Boshiu not more than twenty miles from Yokohama, but by working from Bosliiu toward the north, through Kadzusa, I found the dark form to be less abundant until at Kanosan they were entirely replaced by the pale form. 50. Lycaena bastica, Linn. (Pi- 4, fig. 22.) Localities Yamalo, Ogasawara, Yokohama, Ryukyti. Food-plant a cultivated Leguminous plain like the scarlet runner, but with pinkish-while flowers, Dolichos cultratus (J;ip. Fuji -mame). Time of appeal ance March (Ogasawara); August, September (Yamato, Ryukyu); October, (Yokohama). This butterfly has a most extensive range, and I have taken it in every Eastern country in which I have collected. It is abundant on the Island of Labuan, and also in Ogasawara, and is therefore pro- bably to be found in all the intervening islands wherever its food-plant is cultivated. It is also found in Europe, and is one of the great prizes for the English collector, a few specimens having been taken on the south coast near Brighton. I believe, however, it would soon be no great rarity there if its food-plant were cultivated in suitable localities. It is a very local insect, and seldom voluntarily flies far from its food- plant, to which it is very destructive, the larva eating the unfolded leaves and flowers also burrowing into the young pods. It only appears about Yokohama late in the year, at which time its food-plant is in bear- ing, and as this is not much cultivated it is a scarce species there. 51. Lycsena argiades, Pall. (Pi. 4, fig. 23A, 230.) L. hellotia, Men. Locality Yokohama. Tin.e of appearance March to October. This species is very abundant, and a succession of broods appears during the year ; they vary much in size, and female specimens are often to be found with more or less blue on the upper side. 52. Lycsena argia, Men. (Pi- 4, fig. 24A, 248.) L. japonica, Murray. (PI. 4, fig. 240.) Locality Yokohama. Time of appearance March to November. 1 8 RHOPALOCERA N I MONICA. It is not without considerable hesitation that I quash the Rev. Mr. Murray's species. I have not yet been able to rear either L. argia. or L. japonica, and do not even know their food-plant, although the species is most abundant; in uniting them I am guided by the fact that L. japonica only appears during the spring and autumn, L. argia during the intervening warm months. 53- Lycaena argus, Linn. (PL 5. fig- '*, IB, ic.) Localities Fuji-san, Nikko, Asama-yama, ICuriles (?) Time of appearance August. In Japan this is a most variable insect according to locality, and there are many forms ; some are blue, others almost puce and again others are distinctly greenish-blue. This last form is most interesting, as the males are always nearly as dark as the females, the greenish scales being sparsely scattered towards the base and margin of the fore and hind wings. I have a damaged specimen from the Kurile Islands, which I believe to be this species, captured by Mr. H. J. Snow. I have noticed at Asama-yama three forms within a few hundred feet elevation, but although individual specimens are very distinct, I am forced to the con- clusion, on examination of a large series, that they are all one species. 54- Lycsena segon, Schiff. (Pi. 5. fi g- 2 -) L. micrargus, But. I have a single specimen from the north of the main island. 55- Lycsjna argiolus, Linn. (Pi. 4, fig. 25*. 2 5 B -) Locality Yokohama. Time of appearance spring and summer. There are several broods of this insect. While the male is constant, there are two very dissimilar temperature forms of the female; one has a large amount of black on the upper side, the other, which appears generally later, is much brighter. The second brood often exhibits both forms. 56. Lycsena lycormas, But. (Pi. 5. fi g- 3 A > 3 B -) Locality Yezo. I have only seen this species from Yezo where it is abundant. Some male specimens are almost as dark as the females. 57- Lycsena pryeri, Murray. (Pi. 5. fig- l6 -) Localities Yokohama, Yezo. Time of appearance May and June. This is the finest of the blue section of the Japanese Lycaenidae. Unlike the rest it only appears once in the year. RIIOPALOCERA Nl MONICA, 58. Lycsena euphemus, Hb. (Pi- 5- fi s- 4<\, 4.) L. kazamoto, Dnice. Localities Fuji-sail, NikUo, Asama yama, Yezo. Time of appearance August. This is a mountain insect, and is very variable. Some specimens are all brown, in others blue pre- dominates. 59- Lyc&na iburiensis, But. (Pi. 5, fig. 5.) Localities Nanibii, Asama-yama. I have only two very worn specimens from Nambu, and one good specimen from Asama-yama. Concerning the LYC/NID^, there are some very interesting points which may be here mentioned. The first is the remarkable difference between the colour of the sexes of many of the species, forming this group, and I have drawn up a table under the following headings illustrating this fact : 1. Both sexes alike dull. Miletus liamada (2) Thecla attilia (i) Thecla eufhea (i) Thecla w-albttm (i) Tliecla pruni (i) Thecla mera ( i ) Thecla ibara (i) Thecla butleri (i) 2. Male sligluly colored, female dull. Niphandafusca (?) Lycama euphemus (?) 3. Male bright, female dull. Curetis, acuta (i) Lyccena argiades (2) Lyccena argia (2) Lyccena argus (2) Lyccena cegon (?) Lyccena iburiensis (?) 4. Male very brilliant, female dull. Thecla sapharina (l) Th ecla japo n tea ( I ) Thecla orientalis (l) Thecla smaragditia (l) Some of the species do not always conform to their respective headings. There are bright and dull female polymorphic forms of Thecla japonica, and temperature forms of others, such as Polyommatus phlxas, the male of which becomes nearly black in the summer, and Lycxna euphemus, specimens of which from Yezo are bright, especially the males. 5. Male bright, female also bright, but in a less degree. Thecla orsedice (?) Lyccena argiolus (2) Lyccena lycormas (?) Lyccena bcetica (2) 6. Female brighter than the male. Lyccena pryeri (l) 7. Both sexes nearly equal amount of color. Lyccena ogasawaraensis (?) Amblypodia japonica (l) Amblypodia turbata (?) Amblypodia loomisi (?) Thecla signata (?) Tliecla arata Thecla frivaldszkyi Polyommatus plilceas 8. Both sexes equally beautiful. Dipsas saepestriata Dipsas lutea Dipsas jonasi (i) (0 (2) (I) (I) (0 20 RIIOPALOCERA N I MONICA. The second peculiarity which is noteworthy is that the upper and undersides of the wings are utterly different, presenting a startling contrast. This is of great service to them as a protection from their numerous enemies. I have often watched a dragon-fly attempt to catch one of the Blues, but never saw a capture made; when in flight the Blue at a distance presents only the impression to the eye, of a blue substance moving along irregularly, but if viewed closer the rapid irregular flight of the insect brings alternately into view, greyish-white and blue (or brown in the female). The dragon-fly makes a succes- sion of dashes at his trey, which, if hard pressed, will settle with closed wings, presenting an entirely new appearance, when the baffled pursuer almost invariably abandons the chase. The third peculiarity is that some of the species are single-brooded, others many-brooded, during the year. In the foregoing table I have placed the figure (i) against the species which only appear once, the figure (2) against those that appear many times in the year, and (?) against those of which I have no information. I have obtained from the table the following result, namely, those that appear once are all without exception tree-feeders, and those that appear many times feed on low plants or creepers ; after studying the structure and habits of the larvx of many of the species, I find that they are very slow in their movements, and all have very small heads, with weak jaws, and can only feed on young fresh leaves. The trees they feed on only throw out new leaves regularly in the spring, but low plants and creepers grow all the year, from early spring until late in the autumn ; therefore, the tree-feeding species can only obtain their food, in a fit stage for eating, once in the year, and are necessarily single-brooded; those which feed on lows plants can do so from March to October, and are therefore many-brooded. This law, however, cannot be applied to other genera which have powerful jaws, and appear only once in the year and the fact of such being only single-brooded depends upon other circumstances, namely, either the structure, coloration, or habits of the imago, which may render them especially liable to be captured by what I term "general enemies" such as bats, spiders, and dragon-flies. Thus with the Hyberniadae, which always appear in the imago, and lay their eggs in the winter months. These eggs soon hatch, and the larva feeds up for a short time and then changes to pupa, remaining in this stage all the summer, autumn, and until the next winter. I think the reason is obvious. All (\\efeiiHitc Hyberniadae are either apterous or only have wings incapable of flying, whilst the males, although they have very largely developed wings, are somewhat clumsy fliers, rendering them very liable to capture by dragon-flies, if disturbed in the day time, or to become entangled in the nets of spiders at night; ice therefore find them only appearing in the perfect state when it is too cold for any of these enemies. Again Tseniocampse, which are strong robust moths, only appear in the spring; these have the habit of buzzing about trees, and they would be rapidly exterminated if they appeared later on, when spiders' webs cover every bush and bats are abundant. I believe that when the life-history of any insect is attentively studied, we shall be able to assign the reason of its single or multiple appearance accurately. RHOPALOCERA NIHOXICA. 21 Family PIE RID. The remarks concerning the preceding species apply also to this; it is very variable in size, shape, colour, and markings. I have specimens from if to I -jL- inch. 75- Vanessa c-album, Linn. (Pi- 6, fig. 6A., 6n.) V. fentoni, But. V. hamigera, But. Localities NiUko, Asamayama, Yezo. Time of appearance August. Very variable in shape, markings, and in the colour of the underside. I have a series of 21 speci- mens, no two of which are alike. The coloration of the underside varies from black to red. Some specimens resemble the autumn brood of V. c-aureum, Linn. 76. Vanessa v-album, Hiibn. ? (Pi- 6, fig. 9.) V. l-album, Esp. Localities NiUko, Yezo. Time of appearance August. I am rather doubtful about the name of this insect. In Mr. Elwes' list of the Butterflies of Amurland, North-China, and Japan (Proc. of the Zoo. Soc. Nov. 15, 1881), the following note is given on V. l-album. " Only seen from the Ussuri and from Japan, where it seems rare. The Japanese insect seems inter- mediate between the European and the American form known as V.j-album; but probably the latter is not really separable. Mr. Strecker says that the European and American forms cannot be separated." 77- Vanessa c-aureum, Linn. (Pi- 6, fig. j\, 73.) , V. angelica, Cr. V.pryeri, Janson. Localities Yokohama, Yezo. Food-plants Hemp (Cannabis saliva, L.) and Wild Hop (Hurmilus japonicus, S. & Z.). Time of appearance This species varies considerably according to temperature. V. angelica is the summer form, V. pryeri the winter form, which hybernates. 2 6 RHOPALOCERA NIHONICA. 78. Vanessa xanthomelas, Schiff. (PL 6, fig. 10.) Locality Yokohama. Food-plants Willows and Celtis sinensis, Pers. Time of appearance August to April. Very abundant about Yokohama. It feeds on Willows, but is more often found on the Cellis, large trees being frequently completely stripped of leaves by the larvce. Only one brood appears during the year, and the perfect insect hybernates. 79- Vanessa urticx, Linn. (PL 6, fig. 8.) V. butleri, Fentoti. Locality Yezo. Time of appearance This species is common in Yezo ; I have not yet found it on the main island. 80. Vanessa io, Linn. (PL 6, fig. n.) Localities Yezo, Niigata Nikko, Usui-loge. Time of appearance June, July. Mr. J. M. Leech remarks concerning this species (P.Z.S. 1887, p. 241): " Not very common in Central Japan, where it keeps to the mountains, but plentiful in Yesso and Korea." 81. Vanessa antiopa, Linn. (PL 7, fig- i-) Localities Nikko, Yezo. Time of appearance August to May. Common at Nikko and in Yezo; not found away from the mountains. 82. Vanessa cardui, Linn. (PL 7, fig- 2-) Localities Yokohama, Maibashi, Yezo. Food-plant Plume thistles (Cnicus). Time of appearance August, Septembr, November. Rare in the neighbourhood of Yokohama. 83- Vanessa callirhoe, Fab. (PL 7, fig- 3-) Papilio atalanta indica, Herbst. Localities Yokohama, Yezo. Food-plant Boelimeria nivea, Hook and AMI. Time of appearance January, March, August, November. Many broods appear in the course of the year. I have had them emerge from the pupa in January. It is very common about Yokohama. RHOPALOCERA NIHONICA. 27 84. Vanessa charonia, Drury. (Pi. 7, fig- 4-) \';\r. glauconia, Molscli. Localities Yokohama, Yezo. Food plant Smil;ix China, I.. Time of appearance August. \ cry common about Yokohama. This species is variable in the size and colour of its markings. 85- Melitaea phoebe, Schiff. (Pi. 7, fig- 5-) Var. sibirica, Sldgr. Var. a?theria, Ev. M ' . scotosia, But. Locality Asamayama. Time of appearance July. Varies greatly in size and coloration. 86. Melitea athalia, Bott. (Pi. 7, fig- .6.) HI. iit'pliona, But. Locality Asamayama. Time of appearance July. This species also varies much in size and coloration. 87- Melitsea n. sp. ? (Pi. 7, fig- 7-) Locality Asamayama. Time of appearance August. This may be only an extraordinary variety of M. athalia. As Mr. Elwes well remarks, the genus Melitaea is an extremely puzzling one, and requires an immense series of specimens to illustrate it. 88. Atella phalanta, Dnuy. (Pi. 7, fig. 10.) Locality Sonogi, about 30 miles from Nagasaki. Time of appearance October. The specimen figured was taken in 1880 by the Rev. W. Andrews. Mr. Hewitson's catalogue includes specimens from Calabar, Natal, Madagascar, and Mekian. The species is figured in the Rhopalocera Malayana (PI. 9, fig. 4.) 28 RHOPALOCERA NIHONICA. 89- Argynnis niphe, Linn. (Pi. 7- fig- 8 A, SB.) Localities Yokohama, Nagasaki, Tosa, Hacliijo. Time of appearance March to July. Rare in the vicinity of Yokohama, but seems to be common in South Japan, 90. Argynnis daphne, Sohiff. (Pi. 7. fig- 9-) A. rabdia, But. Localities Nikko, Asamayama, Yezo. Time of appearance July- Varies greatly in size and coloration. It is common at Nikko and in Yezo. 91- Argynnis aglaia, Linn. (Pi. 7. fig- ") A.fortuna, Janson. Localities Fujisan, Yezo. Time of appearance September. This is not a common insect. 9 2 - Argynnis adippe, Linn. (Pi. 7. fig- 12-) A. pallescens. But. Localities Yokohama, Fujisan, dyama, Asamayama, Yezo, &c. Common everywhere. 93- Argynnis nerippe, Peld, (Pi. 8, fig. I-A, I-B.) Localities Gyama, Asamayama, Fujisan, Kanosan, Yezo. Time of appearance August. Very abundant in the mountains. 94- Argynnis anadyomene, Feld. (PI. 8, fig. 2.) A. ella, Brem. Localities Yokohama, Yezo. Time of appearance July, August. Very common about Yokohama. 95- Argynnis sagana, Doubl. (PI. 8, fig. 3.) A. paulina, Nordin. Localities Yokohama, Asamayama, Yezo. Time of appearance July. RHOPALOCERA XIHONICA. 29 This species is common about Yokohama. The two sexes show a very remarkable differentiation in coloration. The specimen figured is a male. 96. Argynnis paphia, Linn. (PI- 8 , fig- 4-) A. paphioides, But. Localities CJyama, Asamayama, Kanosan, Fujisan, Yezo. Time of appearance July, August. This is a mountain species. I have taken it once, however, at Yokohama. 97- Argynnis laodice, Pall. (Pi- 8, fig. 5.) \aT.japonica, Men. Localities Yokohama, Yezo. Time of appearance August. Common about Yokohama. 98. Argynnis ruslana, Motsch. (PL 8, fig. 6.) A. lysippe, Jan son. Localities Yokohama, Nikko, Yezo. Time of appearance September. Mr. Ehves remarks that this species comes very near A. laodice, Pall. It looks like a hybrid, but the specimens in my possession are as yet too few to enable me to give a decided opinion on the subject. Family DANAID^. 99- Danais tytia, Gray. (PL 8, fig. 9.) Localities Yokohama, Fujisan, Yaniato, Oyama, Atami, Kanosan, Yezo. Time of appearance May, August, September. This is scarce about Yokohama, but I generally see two or three every year. It is much more abundant on the mountains, and I have taken as many as five specimens, at one sweep of the net, on the summit of a mountain in Yamato, near Yoshino, on the path leading to O-mine San-jo-san. 3 o RHOPALOCERA NI MONICA. Family SATYRID/E. 100. Melanitis ismene, Moore. (Pi- 8 . fi g- 7-) Locality Yamato. Time of appearance October. This is a very rare insect. I saw only two specimens in Yamato, both of which I captured. They were flying round the bole of a cryptomeria growing on the mountain pass leading up to Odaisan. 101. Melanitis leda, Linn. (Pi. 8, fig. 8.)_ Localities Tosa, Nikko (Mr. Maries). Time of appearance July, August. Very rare. I have one specimen only, captured on the borders of Tosa and lyo, in Shikoku. It was flitting among the tall stems of the cultivated hemp, and was, in consequence, very difficult to capture. I saw only two specimens. 102. Melanitis n. sp. ? Locality Nagasaki. I have only one specimen, received from Mr. Ota. My brother informs me that this comes nearest to M. solandra from Tahiti. It would be exceedingly interesting could a large series be obtained. 103. Mycalesis gotama, Moore. (Pi. 9, fig. i.) Locality Yokohama. Time of appearance This is very common about Yokohama, where it frequents dark thickets. 104. Mycahsis perdiccas, Hew. (Pi. 9, fig. 2.) I .ocality Yokohama. Time of appearance Also .very common, frequenting the same places as M. gotama, which it resembles in markings. Both species appear at the same time. 105. Ypthima baldus, Fab. (PL 9, fig. 3.) Y. argus, But. Locallies Yokohama, Asamayama, Ytzo. Time of appearance August. One of the most abundant butterflies about Yokohama. I have two specimens very dark in the underside from this locality. XIHOXICA. 31 106. Erebia sedakovii, Ev, (Pi. 9. fi s s - 4*, 4B.) E. tiiphonica, Janson. ? E. scoparitt, But. Localities Asamayama, Nikko, Yezo. My Yezo specimen is E. scoparia, which appears to IIIR probably only a local differentiation of the above, although I have not seen a sufficient number of specimens of cither to enable me to decide. 107. Satyrus dryas, Scop. (Pi. 9. fi s- 5-) S. bipuiictatus. Mot sell. Localities Yokohama, A-amayama, Yezo. Time of appearance August. Very abundant about Yokohama flitting among the grass. 108. Pararge achine, Scop. (PI- 9. "{? 6 -) P. achiuoides, But. Localities Nikko, ASM may a ma, Yezo. Time of appearance July, August. Abundant at Nikko in June and July. The Yezo specimens are generally larger and lighter colored. 109. Pararge deidamia, Ev. (?' 9. fi s- 7-) P, meiietnesii, Breni. Localities Nikko, Asamayama, Yezo. Time of appearance July, August. Not uncommon at Nikko. no. Pararge maackii, Erem. (PL 9, fig- 8.) Lasiommata marginnhs, Motscli. Localities Yaniato, Yezo, Tokyo (Fenton). This is not a common insect. in. Lasiommata epimenides, Men. (Pi- 9. fi s- 9-) Neope fentoni, But. Localities Yezo, Asamayama. Time of appearance July, August. Very rare in Japan, but, according to Mr. Elvves, not uncommon in various parts of the Amoor region. 32 RHOPALOCERA NIHONICA. 112. Lethe sicelis, Hew, (Pi- 9. fi s- I0 Localities Yokohama, Asamayama. Time of appearance August. Extremely abundant about Yokohama and everywhere in the plains, but does not go very far up the mountains, where it is replaced by the next species. I have taken the larva, and believe it feeds on the bamboo grass. 113- Lethe diana, But. (Pi. 9, fig. 12.) Localities Oyama, Yamato, Asamayama, Yezo. Time of appearance July, August. Common in all the mountains. It is probably the mountain form of the last species. 114- Pronophila schrenkii, Men. (Pi. 10, fig. i.) Localities Yezo, Asamayama. Time of appearance August. This fine insect is common in Yezo. Mr. Leech (P.Z.S. 1887, p. 426.) says "it flies in dense under- wood, and is hence rather hard to take." 115- Neope gaschkevitschii, Men. (Pi. 9. fi g- ") Localities Yokohama, Oyama, Yamato, Asamayama, Yezo. Time of appearance Api il, August. Very abundant about Yokohama, in Yamato, and elsewhere. The specimens from high up Oyama are much darker than those taken about Yokohama. 116. Neope calipteris, But. (Pi. 10, fig. 2.) Localities Oyama, Yamato, Yezo. Time of appearance August. This is a mountain insect. 117- Csenonympha oedipus, Fab. (Pi. 10, fig. 3.) C. ainnilifer, But. Locality Asamayama. Time of appeaience July, August. Like the last, a mountain insect. RIIOPALOCERA NIHONICA. 33 Family HESPERIDyE. 118. Ismene benjamin!, Gue'r. (PI- i, fig- 4.) /. beiijamini, var. japonica, Murray. Localities Oyatna, Nikko, Yamalo. Time of appearance July ; Southern Japan, May (Mr. I.eecli.) Common in the above localities. 119- Pythauria chrysceglia, But. (PL 10, fig. SA, SB.) Localities NiUko, Asamayania, Yezo. I have a long series of specimens from Yezo. 120. Daimio tethys, Murray. (Pi- ', fig- 6.) Pyrgus tethys, Men. Localities Yokohama, Yezo. Abundant about Yokohama. I have a variety with the white spots in the forewing united, forming a large V-shaped patch. 121. Pamphila mathias, Fab. (PI- 10, fig. 7-) Locality Yokohama. Common about Yokohama ; also in Central and Southern Japan (Mr. Leech.) 122. Pamphila lamprospilus, Feld. (Pi- 10, fig. 8.) P. vitrea, Murray. hoteinon lamprospilus, Feld. Locality Yokohama, Tsuruga (Mr. Leech.) Common in the vicinity of Yokohama. 123- Pamphila varia, Murray. (Pi- 10, fig. 9.) Localities Yokohama, Yezo, Nagasaki, &c. Common about Yokohama. Easily recognized by the dark veins on the underside of the hind-wings (Mr. Leech). 34 RHOPALOCERA NIIIONICA. i24- Pamphila guttata, Brem. and Grey. (PL 10, fig. 10.) Eudmmis gnttatus, Brem. and Grey. Gonoloba guttata, Men. Localities Yokohama, Yezo. Common about Yokohama. 125. Pamphila pellucida, Murray. (PL 10, fig. n.) Localities Yokohama, Asamayama, Yezo. Time of appearance August. Very common about Yokohama. 126. Pamphila jansonis, But. (PL 10, fig. 12.) Localities Ikao. Very closely allied to P. pellucida, the only difference of any importance being a conspicuous pale spot near the base of the hind wing on the underside (Mr. Leech). 127- Hesperia sylvanus, Esp. (PL 10, fig. ISA, 130.) Localities Asamayama, Nikko, Fujisan, Yezo. Time of appearance August. Mr. Elwes remarks that the forms of this species found in China, Japan, and Anna-land ate usually larger than the European ones. 128. Hesperia comma, Linn. (PL i, fig- MA, MB.) Locality Asamayama. Time of appearance July, August. 129. Hesperia leonina, But. (PL 10, fig. 15.) Localities Nikko, Yezo. Time of appearance August. Not uncommon at Nikko. 13- Hesperia rikuchina, But. (PL 10, fig. i6A, i6B.) Localities Nikko, Yezo, Asamayama. Time of appearance August. Abundant at Nikko. RHOPALOCERA NIHONICA. 35 13 > Hesperia flava, Murray. (PL 10, fig. 17.) Localities Yokohama. Time of appeal ance June, August. Common about Yokohama. 132- Hesperia, Sp. ? CPi. 10, fig. 18.) Localities NiUUo, Asamnyama. Time of appearance July. 133- Cyclopides ornatus, Brera. (PL 10, fig. 19.) Localities Oyama, Fujisau, Nilclco. Occurs also in Yezo (Mr. Leech). 134- Pyrgus inachus, Men. (PL 10, fig. 20.) Localities Nikko, Asamayama. lime of appearance Auj-ust. Rather scarce at Nikko. i35' Syrichthus maculatus, Br. and Grey. (PL 10, fig. 21.) Pyrgus niacitlattis, Men. Localities Yokohama, Nikko. Common in Japan and Korea (Mr. Leech). 136. Syrichthus sinicus. (PL 10, fig. 22.) Pyrgus sinicus, But. Locality Yokohama, 137- Nisoniades montanus, Brem. (PL to, fig. 23.) A^. rusticainis, But. Localities Yokohama, Yezo. Food plant Oak (queicus). Time of appearance April. 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A- o ^i *H \ "^ =1 + Ifl V *u g -' i. * V_^ / ^r * 3" A^ 1 * IX W * (1 , ft f 7 * H/J m * a np f -^ sr S sB s 9 Jib lib (ATI) 3 ft ft TH) w UI - as UJ 3- r I I fls fls \ f * '; 9 * St i5 A * t ^ 5S (MA) 3 Wi ^ r t* ii r * m JiS -fc RHOP. JSTIHONICA PI.l \ RHOP NIHONICA PI. 2 RHDP. NIHONLCA PI. .', -V ' RHOP. NIHO PI. 4- A / /&' (: THIVEBSJT1 RHOR NIHONICA PI 5 16 RHOP. NIHONICA PI. 6 RHOP NIHONICA PI. 7 RHOP NIHON1CA PI. 3 RHOP. NIHONICA PI. 9 > RHOP NIHONICA PI. 10 13' 14-* 16' 12 1 7 19 20 THIS BOOK IS DUE ON THE LAST DATE STAMPED BELOW AN INITIAL FINE OF 25 CENTS WILL. BE ASSESSED FOR FAILURE TO RETURN THIS BOOK ON THE DATE DUE. THE PENALTY WILL INCREASE TO 5O CENTS ON THE FOURTH DAY AND TO.A'.00 ON THE_ 8E VENTH DAY OVERDUE. LD 21-100m-7,'40 (6936s) Butterflies of Japan* fOOO*T_ ^~ ' , t 1942 U.C. BERKELEY LIBRARIES COSb310E07 UNIVERSITY OF CALIFOB 5K I 7.