JTTERPLIES 1 THE LIBRARY OF B THE UNIVERSITY ES. OF CALIFORNIA PRESENTED BY PROF. CHARLES A. KOFOID AND MRS. PRUDENCE W. KOFOID THE BOOK OF BRITISH BUTTERFLIES. A PRACTICAL MANUAL FOR COLLECTORS AND NATURALISTS. BY W. J. LUCAS, B.A. WITH ILLUSTRATIONS BY THE AUTHOR. LONDON : L. UPCOTT GILL, 170, STRAND, W.C. 1893. LONDON : A. BRADLEY, LONDON AND COUNTY PRINTING WORKS, DRURY LANE, W.C. PREFACE. MONG the many beautiful objects which the student of Nature finds awaiting his attention, the Butterflies will be allowed by most to take a very prominent place, adding as they do another to the many charms of the flower-decked summer-fields. To assist the large and ever-increasing body of naturalists who make Butterflies their pursuit, "THE BOOK OF BRITISH BUTTERFLIES " has been written. Though primarily intended for beginners it is not a book for mere collectors only, but one that will assist, it is hoped, those who take up the subject in the true entomological spirit a spirit that seems to be on the increase at the present day one that speedily transforms the collector into an observing and experimental entomologist. With this ' object in view, while a popular style has been employed and abstruse matter has been studiously avoided, the subject has been treated with sufficient fulness, it is hoped, to enable anyone wishing to do so, to work at these insects in all stages of their life-history. It might be thought perhaps that the Butterflies are thoroughly worked out already, but this is quite a mistake, and the lover of this grand division of lepidopterous insects will find that, as in all other, cases, the further he goes the more there is to learn. M368517 VI PREFACE. Of the earlier life-history of many species we have very indefinite and unsatisfactory knowledge of some, indeed, we know scarcely anything, even of the best known our knowledge is none too perfect. In this department then, the aspiring naturalist has a wide field before him a fact which he indeed might perceive from the gaps that occur in the present volume. A great feature of this book is the number of illus- trations. Most of the figures of the imagines, both upper and under-surface, were made from the author's drawings of the insects, but in some cases they were prepared from photographs taken direct from nature, the insects in the latter case being kindly lent by Messrs. Watkins and Doncaster of 36, Strand. As often as possible the figures of larvae and pupae were drawn from actual specimens; but where these could not be procured assistance was obtained from Buckler's " Larvae of the British Butterflies," published by the Ray Society; the larva of Danais erippus was taken from a cut that appeared a few years since in The Entomologist. Descriptions of the larvae and pupae have been com- pared with those of Buckler, Newman, and others, and assistance sometimes was obtained from the same sources. The periodicals on the subject have frequently been laid under contribution, and the last twenty-one- years of The Entomologist carefully searched to see how far the records there agreed with the usually given lists of localities. The order, nomenclature, and synonymy of genera and species are those of South's new " Entomologist Synonymic List." W. J. LUCAS. KINGSTON-ON-THAMES, /'uue, 1893. CONTENTS. I. INTRODUCTION . _ . . . i II. PAPILIONID^E . . -35 III. NYMPHALID^E . -74 IV. LYC^ENID^E ... .164 V. ERYCTNID^E . . 205 VI. HESPERIID^E ..... 208 VII. COLLECTOR'S CALENDAR . . .224 GENERAL INDEX .... . 239 INDEX OF FOOD-PLANTS .... 244 THE BOOK OF BRITISH BUTTERFLIES. CHAPTER I. INTRODUCTION. The Butterfly's Place in Nature. N commencing a popular account of our British butterflies, it will doubtless not be labour wasted if a few lines are devoted to the consideration of what a butterfly- is, and to pointing out its proper position in the scale of animal life. Indeed, this seems not only expedient, but absolutely necessary, seeing that a curious, but at the same time very general, idea prevails that the term " animal " cannot properly be applied at all to butterflies and other of the smaller creatures that live and move and have their being upon the earth. Those who possess this idea are not, of course, students of Nature ; for it would be impossible to turn over many pages in her book without discovering that all these creatures, however small, however simple, are endowed 2 . THE BOOK OF BRITISH BUTTERFLIES. with a tiny spark of that same unfathomable mystery life which reaches its highest manifestation in man himself. Our subject, then, is a branch of biology,* the science that treats of life in its widest sense; but this com- prehensive science has two sides, which treat respectively of life as it is manifested in animals on the one hand, and in vegetables on the other. It is needless to say that we are concerned with the former alone the animal or zoologicalf side. Varied as are the members of the Animal Kingdom, they may all be grouped into eight sub-kingdoms, the highest of the eight containing the vertebrate^ animals, that is to say, those which possess a backbone and internal skeleton ; while the animals composing the other seven are invertebrate, having no internal skeleton. Butterflies are found among the Arthropoda^ the most advanced of the invertebrate sub-kingdoms. The Arthropoda contain four classes, the most highly organised being the Insects, || which may be distinguished by their arriving at maturity after a series of changes, called metamorphoses, when the outer covering is cast off and a creature appears, as a rule utterly unlike what it was before the change. An insect in the perfect state may further be known by its being enclosed in a jointed envelope and by having its body divided into three parts : the head, bearing antennae, eyes, feeding apparatus, &c. ; the thorax, bearing six jointed legs and four wings ; and the abdomen. Butterflies fulfil these con- ditions and are therefore insects. It should be observed * 0ios (bios), life, \6yos (logos), an account, a description, t C$ov (ZOOM), a living thing. J Vertebra a joint. apdpov (arthron), a joint, trovs (pous), voSos (podos), a foot; animals with jointed legs || Insecta, divided into (segments). THE BUTTERFLY'S PLACE IN NATURE. 3 that we are using the word " insect " in its strictly scientific sense. The term is often employed in common parlance in a very loose way, such animals as worms and spiders being not seldom spoken of as insects. A glance will shew that they do not comply with the description of an insect given above. The busy little creature that elaborates the coral is another favourite subject for the same misnomer. Thirteen natural orders comprise the class Insecta. The members of the highest order but two have received the scientific name of Lepidoptera* or scale-winged insects, and are characterised by having four large wings covered with small coloured scales overlapping like the tiles on the roof of a house. Further, the pupaef are inactive, that is, do not move about or feed, or indeed shew signs of what is called active life, except sometimes an impatient wriggling of the anal extremity under irritation. The lepidopterous order of insects is divided into two sections, the Rhopalocera^ and the Heterocera. The former section contains the butterflies, || with "horns" (antennae) more or less club-shaped ; the latter, the moths, whose "horns" of whatever shape they may be are never clubbed. It is not always easy at a glance to distinguish between butterflies and moths, but it is satisfactory to know that butterflies cannot possibly be confused with any other class of animals except moths, and to prevent confusion with them the following points of difference should be * \ciris (lepis), \firiSos (lepidos), a scale, and Trrepa (ptera), wings. t Pupa, an undeveloped being. t f>6ira\ov (rhopalon), a club, and Ktpas (keras), a horn. erepos (heteros), other, different. I! From the Anglo-Saxon buttor-fleoge = butterfly. So named probably from the excreta of some species resembling butter, or may be in reference to the colour of some of the commoner kinds. B 2 4 THE BOOK OF BRITISH BUTTERFLIES. noticed. In the first place the former all fly by day t while most of the latter fly at night. Again, the flight of a butterfly is in a wavy line it flutters, as we say- while most moths fly in a straight line, and often with great speed. All our butterflies (except the Skippers) repose with the wings meeting perpendicularly over the back, so that the upper surface is hidden ; while most moths repose with the wings arranged roof-like over the body, disclosing the upper surface of the fore- wings, the hind - wings being hidden beneath them. Again, while it is the rule with moths to spin a cocoon for the chrysalis-state, true butterflies never do so, though the Skippers (which, however, resemble moths in many respects) pass that state in a more or less transparent net of silk. But the most satisfactory point of distinction between a butterfly and a moth is to be found in the antennae horns, as they are popularly called. The tips of the antennae of a butterfly are club- shaped, giving each antenna somewhat the appearance of a miniature drumstick with a very long handle ; but the antennae of moths, on the other hand, though variously shaped, always come to a point at the end. Moreover a butterfly, when at rest, keeps its antennae erect or stretched out in front of its head, whereas a moth bends them back and places them close along the sides of the thorax. But in connection with the last point it will perhaps turn out when more is known about the matter, that the group of butterflies known as Skippers fold back their antennae in the way just men- tioned. Indeed in The Entomologist, xvii., 49, where the sleeping position of Nisoniades tages (Dingy Skipper) is admirably described and figured, we find that the antennae are represented resting along the thorax in the manner generally adopted by moths, as noted above. Synopsis of the Butterfly's Position among Animals. / i Hymenoptera (Bees, Wasps, Ants) 1 Vertebrata (Back-boned Animals) 2 Arthropoda 3 Mollusca (Snails, &c.) 4 Vermes (Worms, &c.) 5 Echinodermata ( Starfish, &c.) 6 Coelenterata (Sea Anemones, &c.) 7 Polystomata (Sponges, &c.) 8 Protozoa v (Vorticella;,&c.) Insecta 2 Myriopoda (Centipedes, &c.) 3 Arachnoidea (Spiders, Mites, Scorpions) 4 Crustacea (Crabs, Lobsters, &c.) 2 Coleoptera (Beetles) ft Rhopalocera (Butterflies) 3 Lepidoptera 4 Diptera (Flies, Gnats, fee.) 5 Aphaniptera (Fleas) 6 Strepsiptera (Stylops, &c.) 7 Trichoptera (Caddis-flies) 8 Neuroptera (Lacewing,&c.) 9 Orthoptera (Dragon-flies, Cockroaches, Locusts, &c.) 10 Thysanoptera (Thrips, &c.) 11 Euplexoptera (Earwigs) 12 Thysanura (Sugar-lice,&c.) 13 Rhynchota v (Bugs, &c.) 2 Heterocera (Moths) 6 THE BOOK OF BRITISH BUTTERFLIES. Life -history of a Butterfly. A butterfly's existence commences inside an egg very much smaller than an ordinary pin's head. These eggs, though so small, exhibit marvellously delicate workmanship when seen under the microscope, the patterns varying greatly with the different species of butterfly. The eggs must usually be sought for on the under-side of the leaves of the plant on which the caterpillar must feed, for the butterfly never makes a mistake as to the kind of food that its young will require. The eggs are hatched by the sun in a few days, except in the case of some half-dozen butterflies, whose eggs lie dormant till the following spring. As the time for hatching approaches, they gradually become darker, and a tiny creature, called a larva* or caterpillar, crawls out through a little hole it has gnawed in one side of the shell. The caterpillar falls to eating at once, and doubles its weight in no time, unless it belongs to a species which hibernates in the larval stage, when it feeds little and grows but slowly till the next spring. It very soon finds its coat too small, and when this happens the little larva leaves off feeding for a time and becomes restless, till a split occurs down the middle of its back, and there emerges a new individual, usually differing somewhat from the old one. This "moult," as it is called, is repeated at least three times, but oftener five or six. At last the insect reaches its full size, gives up feed- ing for good and all, and prepares to retire from the world for a week or two, possibly till the following spring. Its skin is shed for the last time, and now a curious creature appears, without legs, wings, eyes, and mouth, * Larva, mask. BUTTERFLY-HUNTING. 7 entirely closed up in a horny case, powerless to move, except just to wag the hinder segments of the body. This helpless mummy-like object is called a pupa, or chrysalis. The pupa may usually be found fastened by silk of the larva's spinning to a wall, the food-plant, or some other convenient object. Usually after from ten to twenty days the last change takes place, the thick end of the pupa splits open in several directions, and the perfect insect, called an imago* or butterfly, emerges, with large body and tiny, damp, and rumpled wings. The butterfly suspends itself by its legs, and begins shaking out its wings. In an hour or so they have attained their full size, and carry their owner off to enjoy its few weeks of sunny existence. All that the insect has now to do is to flirt awhile, and, if a female, lay eggs before it dies, except in the case of a few species, which sleep through the winter, and, when warm days return with the spring, appear again to re- produce their kind. Butterfly-hunting. It is a bright sunny morning in June, with very little wind stirring, and what there is of it coming from a westerly or south-westerly direction a morning as inviting to the butterfly-hunter as it no doubt is to the insects he would like to capture. Let the former sally forth with the expectation that if butterflies, due at that time of the year, are to be found in his district, he will have a fair hope of taking them. He need not reach his hunting-ground much before nine, for very few butterflies are on the wing earlier than that ; nor, however enthu- siastic he* may be, will he find it of much use to remain * Imago, distinct and perfect form. 8 THE BOOK OF BRITISH BUTTERFLIES. out later than half-past four or five, though he will doubtless always find a few individuals on the wing almost from sunrise to sunset. In general the best spots for butterflies are clearings in woods, or meadows and pathways by the side of them. Some butterflies, such as the Purple Emperor, the White Admiral, the Wood White, the Purple Hairstreak, and many Fritillaries, are scarcely ever found elsewhere. Several, among them being most of the Whites and Vanessas, are friendly enough to visit us in our streets and gardens. Many are common everywhere, others are equally scarce, while some again are local, that is, only to be found in particular spots, though often plentiful enough there. A few haunt marshy places, some must be sought for on heaths, others again prefer the chalk, and one or two are found upon the mountains; in fact, it would be hard to name many spots in a state of nature and to which the sunshine can penetrate, where butterflies of some kind are not to be found. In dull weather, or when butterflies have retired for the night, they may often be found in their sleeping- places, though it usually needs a sharp eye to detect them there, for most, if not all, sle.ep mid surroundings with which they harmonise so well that they are easily passed over on a cursory glance. This is especially the case with the Blues, the Small Copper, the Marbled White, the Orange-tip, and the Vanessas. The only apparatus required for use in the field are a net to catch the butterflies, and a box or boxes of some kind to hold them when caught. The most convenient form of net is the ordinary ring- net (Fig. i). The bag is made of gauze, either silk or cotton. If the latter material be used, it must first be well washed to remove the glazing that gives stiffness to BUTTERFLY-HUNTING. it. Most people affect green, though white is sometimes used I prefer the former, as being less conspicuous to an onlooker, if not to the butterfly. The bag should be a little shorter than one's arm, so that the bottom may be easily reached, and should on no account end in a point, or butterflies will seem to take a delight in finding their way there, and require a great deal of getting out, to the almost certain damage of their plumage. The bag must be fastened to a ring of cane or stiff wire, and this again firmly fixed to a handle at least as long as an ordinary walking-stick. The top of the net had better be bound with some material stouter than gauze, or it will very soon be torn away from the ring. It is especially important that the net should be firmly made, for nothing is so tantalising as to lose a good insect in consequence of the net falling to pieces at the moment of striking. Many entomologists have a dislike no doubt a natural one to be seen in the streets of a town carrying a net to the field of operations, so dealers in natural history requisites supply nets of various kinds that can be folded up and put out of sight. The most convenient one, in my opinion, consists of a three-jointed cane ring (Fig. 2) on which the hem of the net slides, the parts being hinged together and finished with brass fittings. The ends of the ring fit into the two forks of a brass Y- tu b e > while a walking-stick fits into the stem. This net is a very neat affair, and can be thoroughly trusted to do the work required of it. I FIG. i. GAUZE RING-NET. 10 THE BOOK OF BRITISH BUTTERFLIES. have had such a one in use for several years, and it is still in good working order. The best method of wielding the net will be learnt from experience. The novice will not be long in discovering that it seldom FIG. 2. MECHANISM OF FOLDING RING-NET. pays to try to chase a butterfly down. In the majority of cases it is much better to watch it to its resting-place, and try and take it there. Should a successful stroke be made and the butterfly caught, a sharp turn of the wrist will close the net and keep the insect a prisoner. BUTTERFLY-HUNTING. 1 1 We have next to kill the butterfly. No attempt must by any chance be made to touch it till it has ceased fluttering and closed its wings over its back. Then a sharp nip of its body at the insertion of the legs, given by means of the finger and thumb, usually settles the matter, or at least renders the insect quies- cent. This nip can be given through the gauze. The butterfly may now be allowed to fall from the net into the open hand, and a proper entomological pin must be thrust carefully and in a perfectly upright position through the very centre of its thorax. If the collector does not mind the trouble of taking a cyanide-bottle to the field, he can kill his captures before handling them at all. To make a cyanide-bottle, a wide-mouthed stoppered bottle, holding about 5oz. or 6oz., should be procured, and about oz. of potassium cyanide (KCN) put into it. Next a somewhat thin paste of plaster of Paris and water should be made, and poured over the potassium cyanide till there is a layer about lin. deep. When this sets, the cyanide- bottle is made. But as one can be purchased for a small sum, and potassium cyanide is exceedingly poison- ous, it is perhaps as well to buy one. The poisonous vapour of the cyanide (smelling somewhat like almonds) penetrating the layer of plaster of Paris stupefies and finally kills the butterfly placed in the bottle.* Insects bred at home had better always be killed by this means. Some of our readers might like to make a killing- bottle by folding a piece of cyanide in paper, and securing it by means of sealing-wax or other adhesive to the bottom of a bottle. As, however, in this case, the poison is more readily accessible to inquisitive fingers, care should be taken to keep the bottle out of harm's way. * The vapour, being exceedingly poisonous, should not be breathed. 12 THE BOOK OF BRITISH BUTTERFLIES. The butterfly, then, being killed by one means or the other, and properly pinned, must then be placed in a collecting-box. These had better be bought, as they are very cheap indeed, and an amateur would probably not succeed very well in making them. They are light deal boxes lined, either at the bottom only or at both top and bottom, with cork. It is of course an advantage to have them as large as possible consistent with going easily into the pocket, and, if both top and bottom are going to be used, care should be taken that they are deep enough to prevent the pins on one side from destroying the insects on the other. On a hot day the small butterflies sometimes begin to get stiff before they can be taken home to the setting-boards ; or in the height of the season the numbers taken may make it impossible for all to be set at the time. To obviate this difficulty the dealers sell zinc relaxing-boxes. These are cork lined : hot water is poured over the cork and the superfluous moisture wiped away ; the little moisture remaining in the box keeps the air inside damp for some time. These boxes will not, however, be often needed in the field, and never for the larger butterflies. Others again prefer to take their specimens home alive, each in a small box, and this of course is imperative if there is at any time a desire to obtain eggs from a captured female. Breeding. There is another way of procuring perfect insects by breeding them ; and there are three stages at which breeding may be commenced, from the egg, from the larva, or from the pupa. The last is the simplest all that has to be done is to keep the pupa as nearly as possible in a state of nature and wait till the imago BREEDING. 13 appears ; then a few hours later to kill and set it. If breeding from the egg is going to be tried, the eggs must be attached to the food-plant, so that the food may be at hand as soon as the larvae come out. Of course caterpillars thrive best on actual living plants, and they may often be left to themselves on one without much fear of their moving from it until the time for pupating draws near. If it is not thought well to give them carte blanche in this way, a bag of gauze may be tied over them and the branch on which they are feeding. In the event of the food-plant being small, it is an excellent plan to have it growing in a flower-pot, covering the whole either with gauze or with a glass cylinder capped with gauze. If preferred, larvae may be reared indoors in some kind of cage : a tin or chip box, or something of that kind, a few inches in diameter, and eight or ten inches high, will do very nicely. On the floor of this cage a couple of inches of fine earth or sand -had better be strewn. In the centre of this layer of earth should be placed a narrow-necked bottle containing a sprig of the food-plant. A little cotton-wool round the stem will make it fit the bottle, and so remove the chance of small larvae being drowned. About a dozen eggs having been fastened on the sprig, the top of the cage must be covered with gauze to prevent the escape of the larvae. It is as well, if a tin box is used, to make the inside of it rough, so that the caterpillars may be able to reach the food-plant again should they fall from it. The box may be roughened by smearing it with moist sand. When renewing the food-plant, the larvae must on no account be lifted with the fingers : they should be shaken from the old to the new twigs, or at most, be lightly touched with 14 THE BOOK OF BRITISH BUTTERFLIES. a camel-hair brush. As the larvae increase in size they must be separated to prevent overcrowding. When the time for pupating is near, the old twigs must be searched to see that there are no chrysalides upon them, for most butterflies, except the genus Pieris, pupate on the stems or on the backs of the leaves of the food-plant, or, in the case of a few butterflies, at their roots. The cages I have just described should be the minimum as regards size, for the more room larvae have, the better they thrive. Larger and more elaborate ones, in which a greater number of larvae may live together, can be prepared on the same principle ; or very neat and useful cages may be bought very cheaply at the natural history dealers'. Note-making. When breeding or collecting, let me recommend every- one to keep a note-book, and enter therein with the date everything that seems in the slightest degree worth re- cording. It may not appear of much consequence at the moment, but may perhaps be exactly the link needed to connect two chains of facts at a future date. This at once raises the pursuit of entomology far above a mere hobby; and since insects are to be found practically everywhere, and, though at times useful, more often cause us great inconvenience, if nothing worse, a simple dis- covery in connection with them might perhaps prove of inestimable benefit to the human race. Even if nothing else should result, it is always interesting to be able to refer at odd moments to some records of the past, and, like a soldier, on winter evenings to fight one's battles over again. The following scheme, which may be amplified to meet individual requirements, will perhaps be of use to those collectors who keep a note-book, as suggested above : NOTE-MAKING. 15 A. EGG. a. Description. 1. Shape. 2. Colour. 3. Markings. 4. Size. b. When laid. Whether more than once a year whether winter is passed in this state. c. Where laid. The plant, and what part of it. d. How laid. Whether singly, or in groups of how many. B. LARVA. a. Description. 1. Shape. 2. Colour. 3. Markings. 4. Size. 5. Smooth, or covered with hairs or spines. 6. Variations in these respects. b. Food-plant or -plants. c. Date of hatching hibernation (if winter is passed at this stage). d. Number of moults and changes at moulting. e. Difficulties, &c., experienced in breeding. C. PUPA. a. Description. 1. Shape. 2. Colour. 3. Markings. 4. Size. 5. Variations in these respects. b. Choice of place for pupating. c. Method of support of pupa (cocoon, if any). d. Date of pupating hibernation (if winter is passed at this stage). D. IMAGO. a. Description. 1. Shape of wings and antennae. 2. Number and use of legs. 3. Colour. 4. Markings. 5. Size. 6. Variations in these respects. 1 6 THE BOOK OF BRITISH BUTTERFLIES. b. Difference between male and female, and in what proportion taken or bred. c. Date of coming out and ceasing to fly. Hibernation (if winter is passed at this stage). d. If more than one brood, dates, and differences between them. e. Manner of flying, favourite resting-places, time of day and state of weather when on the wing. /. Localities, and local varieties, with causes, if possible. g. Peculiar habits, &c. h. Parasites and other enemies. Setting. We will suppose we have a butterfly, freshly caught. How is it to be set ? It will not, as many people seem to imagine, of its own accord arrange its wings and antennae in such a way as to make it fit for the cabinet. We must first have setting-boards, which may either be manufactured by the collector or bought ready made. Since they are very cheap, it is better to adopt the latter alternative. Four or five sizes will be required in order to suit the size of the bodies of the different butterflies and the stretch of their wings. There are two types of setting-board : one with the surface of the slope curved, the other not. In the natural state, I suppose, a butterfly never does curve its wings ; but, personally, I must confess I prefer a butterfly set on a curved setting-board, if the curve is not too pronounced. Vertical sections of the two types of board are given in Figs. 3 and 4. It will be seen that they have a deal base covered with an upper surface of cork, and there is a strip of cork, about in. thick, glued along the groove that is to contain the butterfly's body. Some people manage to dispense with the cork, and use setting-boards made entirely of deal; but it is false economy pins are easily blunted, and the slightest touch knocks them out of the wood, and in this way SETTING. 17 specimens are often spoilt even where the utmost care is exercised. The surface of the setting-board should be covered with a layer of unglazed white paper plain cork will rub the under-surface of the wings. On the Continent setting-boards are not sloped, and the groove is very deep, so that the butterfly appears with its wings perfectly flat and fixed lin. or more up the pin, producing an effect which appears to me anything but agreeable. When buying foreign specimens of FIGS. 3 and 4. VERTICAL SECTIONS OF SETTING-BOARDS. a, cork; b, deal. our scarcer English butterflies this should be recollected, and, unless specimens set in the Continental fashion are preferred, they should be asked for set in the English way. The setting-boards being disposed of, we may next con- sider the question of pins. It is clear that for such a delicate subject as a butterfly's body, ordinary pins are altogether unsuitable, and the proper ones must be bought from a dealer in natural history requisites. Entomological pins are much more slender than the c 1 8 THE BOOK OF BRITISH BUTTERFLIES. ordinary ones, and have very inconspicuous heads. They are made in all sizes, to suit all sorts of insects. Three very good sizes for most butterflies are Nos. 8, 9, and 10 but if they are going to be used for moths as well as butterflies, it is perhaps a good thing to buy them mixed. Plain white mixed pins are is. an ounce, but they can be obtained for double the price gilt or covered with black enamel, and these are worth the extra cost, as grease will not act upon them. It must be remembered that entomological pins will stand very little pressure without bending, and that the points are turned very easily, even by trying to push them through glazed paper. Setting-needles, for arranging the wings, antennae, and so on, are readily made by inserting the eye-end of an ordinary sewing-needle in a twig of green wood. As the wood dries it contracts, and the needle is firmly held in position. We now come to the actual setting. The butterfly should be held in the left hand by the under- side of the body, and the pin thrust very carefully through the centre of the thorax in a perfectly upright manner. This is very important, as in a case a badly-pinned butterfly spoils the look of a whole row. The insect is now put on the board with the body nicely arranged in the groove. If the abdomen does not dispose itself properly, it must be kept in position by pins stuck into the board. Now comes the difficult part of setting the arranging of the wings without damaging them. Of course, the simplest thing to do would be to bring one wing into position and stick a fine pin through it ; and so on until all four were arranged. No doubt, in many cases the holes so made in the wings would not be apparent ; but in others they most certainly would, so SETTING. IQ another method must be found. Many use triangular slips of thin, smooth cardboard (Fig. 5), and as soon as a wing has been carefully drawn into position with the setting-needle, one is pinned down over the margin to keep that wing in place till the others are arranged in the same way. A very good method, which is illus- trated in Fig. 6, is to have some square pieces of cork with a shoemaker's bristle thrust through each somewhat obliquely. The cork is fastened to the setting-board with a pin, and the bristle will then be found to FIG. 5. METHOD OF SETTING WITH CARDBOARD BRACES. exercise considerable pressure on the board, and will hold the wings in the same manner as the cardboard slips. It has this advantage that it does not hide the wings or interfere with the braces that are to come afterwards. It is extremely important to be able to see all the wings well at once to ensure their being arranged symmetrically. Others use a piece of quill for the same purpose and in the same way, the quill of course having the curved surface on the butterfly. C 2 20 THE BOOK OF BRITISH BUTTERFLIES. My own plan is quite a different one. After the butterfly has been pinned in the groove, a small strip of paper (called a brace) is taken and one end pinned down, as in the lower part of Fig. 6, over the costal margin of one of the fore-wings. Next holding the other end of the brace between the thumb and first finger of the left hand, the two wings on one side are carefully disposed by the aid of a setting-needle held in the right. When both wings are thus drawn into posi- tion, the strip of paper is brought down over them with the left hand and kept in place by a pin. The other side having been similarly treated, other strips are put over the edges of the wings to prevent their curl- ing as they dry. In my opinion, these braces are best made of transparent tracing-paper, so that the general out- line of the butterfly may be seen through them (as shown in the lower part of Fig. 6). It is then possible to be quite certain, when the setting is finished, that the wings on the two sides are properly balanced. The wings being arranged, the abdomen and antennae must next be very carefully attended to, and held in their proper places by pins. The legs, too, of those butterflies that are intended to show the under-surface will require attention, for it looks very untidy to see all the legs pointing in different directions. The legs, by the way, are very easily broken off. But one step now remains to dry the butterflies that have been set. They must be kept out of the dust, and should, if possible, be placed in a current of air. Drying-houses made for the express purpose may be bought, but the expense is considerable, and they seem to me to be quite unnecessary for the ordinary collector. Everybody with a little searching can find a safe place for his setting-boards ; but he must recollect that cock- SETTING. 21 roaches and other animals, to which the body of a butterfly seems a dainty morsel, have wings as well as legs. Cockroaches no doubt are good things in their FIG. 6. METHODS OF SETTING BUTTERFLIES WITH BRISTLES AND PAPER BRACES. proper place, wherever that place may be, but it is certainly not on the setting-board of an entomologist, and their presence must be carefully guarded against. 22 THE BOOK OF BRITISH BUTTERFLIES. Unless the air is damp, the butterflies will be dry in about a week ; the large ones may take a little longer time, and the small ones a little less, but no harm is ever done by leaving them too long on the setting- board. I have generally found that those set to shew the under-surface are better for being a little longer on the boards. When time is an object, as sometimes on the last day or so of a holiday, I see no reason why butterflies (not moths) should not be dried by heat. I have made use of this method on one or two occasions, and no harm resulted. This should only be resorted to, however, in a case of necessity, and the butterflies should never be put on a board not covered with paper, for resin is apt to exude from the wood and fasten them down. Relaxing. Many a collector of butterflies and moths, especially if he is a novice at his craft, will no doubt find when he begins to overhaul his captures that many of them are not set as nicely as he would wish, and it may be that in the height of the hunting-season some even were put away without being set at all. The question will arise, what should be done by anyone who happens to find himself in this position, that he may make pre- sentable his Purple Emperors and other rarities which he certainly cannot do without, but which with equal certainty he may not be able to put into the body of his collection in their present condition? ^ The first thing to do with a butterfly that requires re-setting is to relax it ; that is, to reduce its wings, antennae, and so on, to the same " lax " condition as they were in when the animal was alive. Drying an insect means getting rid of all moisture from its RELAXING. 23 system; it is clear then, that in order to relax one, water must be re-introduced. In the case of a beetle, this is easily done by putting it into warm water -for a few moments ; but this treatment is much too rough for the delicate wings of a butterfly. It must be placed instead in moist air, warm by preference. There are zinc boxes made for this purpose, and to be bought at the dealers' for about a couple of shillings. These are lined with cork, hot water is poured over the cork, the superfluous water wiped off, and the butterfly shut in. Another method is to put the butterfly into a tightly-closed vessel containing bruised young laurel-leaves. But these two plans are more suitable for keeping re- laxed insects that cannot be set directly they are caught, than for relaxing those that have become thoroughly dry. In dealing with the latter I prefer to act as follows : place on the bottom of some vessel, such as a pudding-dish, or something of that kind, a layer of moistened sand that has been thoroughly baked to kill all vegetable and animal germs. Over this, but not touching it or the sides of the vessel, place the butter- flies to be relaxed. Put a fairly close-fitting cover over them, and stand the whole in an oven that is getting cool. In this way the insects will be relaxed with comparative speed and, it seems to me, with less detriment to their appearance. Insects that have been relaxed must be left on the setting-boards longer than those that have been freshly caught, ;pr they are apt to spring to their old position. In every case strict watch must be kept to prevent mould from growing on them while they are damp. Before leaving this part of the subject, I would say, never relax an insect if possible, for it is almost certain to lose some of its freshness, even if nothing worse befall it. 24 THE BOOK OF BRITISH BUTTERFLIES. Butterflies in the Cabinet. The butterflies being caught and properly set, What is to be done with them ? Shall they be arranged in a glass-topped case to form some elaborate design gorgeous and beautiful, no doubt, to anyone who can forget the waste of life necessary to produce it and leave them there to lose their colours from exposure to the daylight? But such a question need scarcely be asked ; for every true entomologist will be too careful of his captures to treat them thus. He knows that if he wishes to preserve their rich colours he must keep them in darkness. Moreover, FIG. 7. STORE-CASE. each insect will have to him an individuality which must be preserved not lost amidst a blaze of splendour. To attain these two objects preservation of colour and individuality a cabinet or cases of some kind must be provided. A beginner probably will not at first be so ambitious as to think of the former, but will for a time, at least, content himself with the latter. He may perhaps aspire to a properly-constructed cabinet at a later date, when his collection approaches completion; but he need not do so even then, for he can preserve it very well indeed in neat store-cases (Fig. 7), which can be pur- FOES. 25 chased very cheaply. We will, however, say this much about cabinets : to be of any use they must be thoroughly well made, and that by some one who understands their use. Cheapness is therefore out of the question so much so, that a good secondhand cabinet will generally fetch as much as when it was new. The store-cases referred to above are made of thin, light deal, and resemble large collecting-boxes. They are corked and papered top and bottom, and are made to close very tightly, so as to exclude as nearly as possible the external air, and with it the enemies to the insects within. Store-cases are made in several sizes, the most convenient, in my opinion, being the two whose measure- ments are loin, by Sin. and nin. by i6in. Tjjro of the former are equal in length to one of the latter, and of nearly the same width. They are both 2fin. in depth. Foes. Preserved butterflies have many enemies, which must be carefully guarded against. Cockroaches, clothes-moths, small beetles, and such animals will get at them if the slightest chance is given ; but these are large enough to be easily fought against. The worst enemies, mites (dust- lice, Fig. 8) and mould, are much more insidious. Mites are so small that, let the cases be closed as tightly as they may, there will probably still be space enough for them to enter, and enter they will unless deterred in some way. Camphor was generally prescribed for this purpose. Camphor, however, will not destroy mites : at the most it will only tend to prevent their appearing ; but let them once get into a case, camphor will not drive them away. A more powerful agent naphthalene is now used a great deal. As long as this is present the butter- flies are almost or quite safe. Just as camphor is, it 26 THE BOOK OF BRITISH BUTTERFLIES. should be placed in the cells of the drawers of the cabinet, and wrapped in paper and pinned in one corner of the store-cases. An already affected specimen, generally discovered by the small heap of dust beneath it, had better be dipped in benzine, and then blown upon till the benzine has evaporated. The mites will be killed, the colours of the butterfly will not be affected, and through the draught caused by blowing the hairs will Dorsal View. Ventral View. FIG. 8. THE MITE OF THE INSECT CABINET FROM LIFE (magnified 375 diameters). not be much the worse. Attention may here be directed to an improved form of store-case recently brought out, in which an invisible naphthalene cell in ingeniously provided. As regards mould, its spores are quite invisible, and are almost always present in the air, waiting for a suit- able medium whereon to germinate. Since it is next to impossible to get a case intended to be opened that is FOES. 2 7 perfectly air-tight and if not so, the spores can certainly enter we must try to keep our cases in such a spot that the spores will* not be able to find sufficient moisture to allow them to germinate, and very little moisture is required for such a tiny fungoid growth. Many prefer to take the bull by the horns and poison their specimens, which will then be perfectly safe against attacks of either mould or mites. The poison used is mercuric chloride (HgCl.,), commonly called corrosive sublimate, which must be dissolved in spirits of wine (or methylated spirit). A given amount of spirit will only dissolve a certain quantity of the chloride ; if too much is put in, some will remain undissolved at the bottom of the bottle. More spirit must then be added, for a moderately weak solution of mercuric chloride will be sufficient for our purpose. Let the butterflies be steeped in this and then dried in a current of air. The colours, which at first disappear, will return as bright as before, and the specimens will be impregnated with the poison, and may be placed with mites or mould without any fear. There are two drawbacks, however, to its use the hairs and scales are not always as velvety in appear- ance as before its application, and then, corrosive subli- mate is as deadly a poison to men as to mites and mould. Specimens affected with mould should be placed in benzine, and when dried the mould should be rubbed off with a camel-hair brush. Fortunately, unlike moths, butterflies are seldom affected with grease ; if any are, they will probably be the Vanessas. Should a specimen that cannot be destroyed, be so affected, probably the best thing to do is to steep it in benzine collas, and, when the superfluous liquid has been taken off with blotting-paper, to sprinkle over it fuller's-earth, magnesia, or French chalk. After leaving it for some 28 THE BOOK OF BRITISH BUTTERFLIES. hours this must be brushed off with a camel-hair brush, and the insect may look fairly presentable again. Arrangement in the Cabinet or Cases. Now to place the butterflies in the store-cases or cabinet. They must of course be arranged so that the pins on which they are set are upright and in parallel lines. If the collection is so complete that the insects are likely to remain permanently where they are placed, each row had better be separated from the next by a line ruled on the paper. The space should be wide enough to contain the largest butterfly that occurs in the column. There must in most instances be at least four specimens of each species, to shew the upper and under surfaces of both male and female ; but in general, room will also have to be found for varieties and aberrations. So that, although there are but about sixty-eight British butterflies, probably a complete collection would contain not less than four or five hundred specimens, even if chrysalides and preserved larvae were not added. Next comes the naming : and here let me advise every- one to employ the scientific names as much as possible, since they are easily learned and are understood by en- tomologists throughout the world. In the first drawer or case the first column should start with the family name Papilionida. Under that would come the name of the first genus, Papilio. Next would follow as many specimens of the first species of that genus as were needed, and under them the specific name, machaon. We should, perhaps, next put in a purchased specimen of P. poda- firius, placing its specific name, podalirius, beneath it. Then would follow the name of the second genus, Aporia, followed by specimens of the only species, and then the specific name cratagi^ and so on. ARRANGEMENT IN THE CABINET OR CASES. 29 In the following list, the families, genera, and species of British butterflies are set out in order : Nat. Ord. LEPIDOPTERA. SECTION RHOPALOCERA (Butterflies). Family I. Papilionidae. Larva, cylindrical, smooth or slightly hairy; pupa, fastened by the tail, and supported head upwards by a girdle of silk; imago, with six perfect legs adapted for walking. There are eleven species, the colouring of which is almost entirely confined to white, black, and different shades of yellow. 1. Papilio machaon (Linnaeus). 2. Aporia cratagi (Linn.). 3. Pieris brassica (Linn.). 4. ,, rapce (Linn.). 5. ,, napi (Linn.). 6. daplidice (Linn.). 7- Euchloe cardamines (Linn.). 8. Leucophasia sinapis (Linn.). 9. Colias hyale (Linn.). 10. ,, edusa (Fabricius). 11. Gonopteryx rhamni (Linn.). II. Nymphalidae. Larva, cylindrical, either spine-bearing or having a forked tail or two horns at the head ; pupa, with the head downwards, attached by the tail only; imago, with the anterior pair of legs but partly developed, so that four legs only are adapted for walking. There are thirty species, comprising the Fritillaries, Vanessas, Ringlets, &c. 12. Argynnis selene (SchifFerm tiller). 13. ,, euphrosyne (Linn.). 14. latona (Linn.). 15. ,, aglaia (Linn.). 16. adippe (Linn.). 17. paphia (Linn.). 18. Melitcea aurinia (Rottemburg). 19. ,, cinxia (Linn.). 20. athalia (Rott.). 21. Vanessa C-album (Linn.). 22. polychloros (Linn.). 23. ,, nrticce (Linn.). 30 THE BOOK OF BRITISH BUTTERFLIES. 24. Vanessa io (Linn.). 25. ,, antiopa (Linn.). 26. ,, atalanta (Linn.). 27. ,, cardui (Linn.). 28. Limenitis sibylla (Linn.). 29. Apatura iris (Linn.). 30. Danais erippus (Cramer). 3 1 . Melanargia galatea ( Linn . ) . 32. Erebia epiphron (Knoch). 33. cethiops (Esper). 34. Pararge egeria (Linn.). 35. ,, megcera (Linn.). 36. Satynts semele (Linn.). 37. Epinephele ianira (Linn.). 38. ,, tithomts (Linn.). 39. ,, hyperanthes (Linn.). 40. Ca'ttonympha typhon (Rott.). 41. pamphilns (Linn.). III. Lycaenidae. Larva, short and stout, woodlouse-shaped ; pupa, supported as in Papilionida ; imago, with six legs adapted for walking, as in Papiliomda. There are eighteen species, comprising the Hairstreaks, Coppers, and Blues. 42. Thecla betttlts (Linn.i. 43. ,, IV-album (Knoch). 44. ,, prtini (Linn.). 45. ,, qitercns (Linn.). 46. ,, r//i (Linn.). 47. Poly om niatus dispar (Haworth). 48. phlaas (Linn.). 49. Lyctzna batica (Linn.). 50. ,, argiades (Pallas). 51. agon (Schiff.). 52. ,, astrarche (Bergstrasser). 53. , teams (Rott.). 54. ,, bellargits (Rott.). 55' u corydon (Fabr.). 56. ,, argiohis (Linn.). 57. ,, semiargns (Rott.). 58. ,, minima (Fuessly). 59. ,, arion (Linn.). TERMS DESCRIPTIVE OF LARVA, PUPA, AND IMAGO. 31 IV. Erycinidae. Larva, short and stout, woodlouse-shaped, some- what hairy; pttpa, supported as in Papilionidce ; imago, male, as in Nymphalida, having four legs only adapted for walking, while the female has six, as in Papilionidce. There is but one species, which is brown with yellowish spots. 60. Nemeobius lucina (Linn.). V. Hesperiidae. Larva, head large and the segments that follow narrower, smooth ; pttpa, in a slight cocoon among the leaves &c., of the food-plant ; imago, with six legs adapted for walking ; antenna, which in two species are slightly hooked, widely separated by the broad head ; at rest the hind-wings are nearly horizontal. The seven species bear the common name of Skippers, from their short, abrupt flight. 61. SyrichtJms malvee (Linn.). 62. Nisoniades tages (Linn.). 63. Hesperia thaumas (Hufnagel). 64. ,, lineola (Ochsenheimer). 65. ,, actceon (Rott.). 66. ,, sylvanus (Esper). 67. ,, comma (Linn.). 68. Carterocephalus palcemon (Pallas). Terms used in Describing the Larva, Pupa, and Imago of a Butterfly. Before proceeding to take the British butterflies seriatim^ it will be necessary briefly to call attention to the chief terms used in describing them in their three stages larva, pupa, and imago. The larva of Papilio machaon (Fig. 9) may be taken as the type of all butterfly caterpillars. It has always thirteen rings, or segments as they are usually called, the head being reckoned as one, and that the first. A is the anterior, and L the anal extremity of the body ; B, c, and D are the three pairs of true, jointed legs; E, F, G, H, and K, the five pairs of claspers protuberances of the skin, which do not reappear in the imago. The legs are always on the second, third, and fourth segments, and the 32 THE BOOK OF BRITISH BUTTERFLIES. claspers on the seventh, eighth, ninth, tenth, and thir- teenth. The second, fifth, sixth, seventh, eighth, ninth, FIG. 9. DIAGRAM OF LARVA. tenth, eleventh, and twelfth segments bear each two spiracles (breathing-holes), one on each side. FIG. 10. DIAGRAMS OF PUPA. As an example of the chrysalis-stage (Fig. 10) three positions of the chrysalis of Pieris brassica have been chosen ; the first giving a lateral, the second a dorsal, TERMS DESCRIPTIVE OF LARVA, PUPA, AND IMAGO. 33 and the third a ventral view. A, in the direction of the head, will be the anterior extremity; and B, the anal, terminating in a hooked tail; c is the covering of the eye; D, of the wings; and E, of the tongue, an- tennae, and legs ; F is the thorax ; and G, the abdomen, bearing]two lateral ridges (H) and a dorsal one (K). * ~ i '* k k k * FIG. n. DIAGRAMS OF IMAGO. As examples of "the imago (Fig. n), figures of Papilio machaon^ Vanessa, C-album, Melanargia galatea, and Pieris brassica^ have been taken. The hind-margin of the hind-wings (o) of the first is tailed, of the second angled, of the third scalloped, of the fourth rounded; while the fore-wings (n) of the first, third, and fourth are rounded, and of the second angled like the hind-wings. D 34 THE BOOK OF BRITISH BUTTERFLIES. c is the head, bearing (a) antennae, (d) palpi, eyes, &c. ; e is the thorax, and f the abdomen ; b is the costal margin of each wing, reaching from the thorax to the tip (g)\ k is the hind-margin, reaching from the tip (g) to the anal angle (/) ; h is the inner margin, reaching from the anal angle (/) to the base of the wing, that is, where it joins the thorax ; m is the tail. CHAPTER II. PAPILIONID/E. Papilio, Linn. HE queen of British butterflies the first in rank as well as beauty belongs to the genus Papilio* at once the type of its family, the Papilionida, and of the whole tribe of butterflies. The superiority in size combined with the- possession of the long swallow-tail on each hind-wing at once separates this from every other British genus. But we may further note that the larva is cylindrical in form and smooth, that the pupa is attached by the tail and kept in an upright position by a band of silk round the upper part of the body (Fig. 15), and that the perfect insect has six legs that it can use in walking, and the knob of the antennae somewhat elongated. One species only, Papilio machaon, can be reckoned as British, though record has been made of the capture, now many years since, of one or two specimens of P. poda- lirius (Scarce Swallow-tail, Fig. 16) scarce, that is, as * Papilio, a butterfly. D 2 36 THE BOOK OF BRITISH BUTTERFLIES. far as our islands are concerned, for it is a common butterfly on the Continent. P. machaon, Linn. (Swallow-tail) (Figs. 12 to 15), though much sought after for the cabinet, is not easily caught, even if the would-be possessor should happen to be in one of the few districts where it may still be found, for it majestically sails along, by the help of its large and powerful wings, with great speed and almost in a straight course, or sometimes soars aloft perfectly safe from the pursuer's net. Why this species should be named after Machaon, a physician, one of the sons of ^Esculapius, who accompanied the Greek army against Troy, it is hard to see ; but the name being once given, it is quite clear why his brother's name, Podalirius, should be bestowed on the second species of the genus. The larva (Fig. 14), which is often nearly 2$in. long, and feeds on various umbelliferous plants, especially the Marsh Hog's Fennel (Peucedatmm palitstre}, the common Fennel (Fceniculum vulgare\ and the wild Carrot (Daucus Carota\ should be looked for from June to August or even September. It is a lively green in colour, and carries behind the head a reddish, two-pronged projection, which it can protrude and retract at pleasure, and which, by emitting a strong-smelling liquid, is supposed to keep off its enemies. The head is marked with black, and there is a velvety black band separating the segments, while another crosses the middle of each segment trans- versely. Each of these latter bands bears six orange dots, except the first and the last, on which they are fewer or wanting. A black dot or two below the termina- tion of the bands, and another on each of the legs and claspers, except those of the thirteenth segment, complete the marking of the handsomest representative of our butterfly caterpillars. PAPILIO MACHAON. 38 THE BOOK OF BRITISH BUTTERFLIES. In appearance the chrysalis (Fig. 15) is rather alder- manic : it may be found during late autumn, winter, and early spring, attached to dry reeds and similar plants. The colour is usually bright yellowish dorsally, greenish ventrally, with decidedly green wing-cases and head, and a row of ill-defined green spots along each side. There are several protuberances on the anterior part of the body, which is bluntly two-lobed. A variety often occurs with brownish markings instead of green. The perfect insect, which is often 3Jin. across the expanded wings, comes out in May, and continues to be seen till August. A reference to Fig. 12 will show the sharp-pointed fore-wings, and the beautifully scalloped hind-wings with the long tail on their hind-margin. It will be noticed that the abdomen does not lie in a fold of the hind-wings, as with so many butterflies, but the wings are hollowed out to make room for it. The ground- colour of all the wings is dull yellow. On the upper surface there is a band of black crossing both wings near the hind-margin, the middle of the band being sprinkled with yellow dust on the fore-wings and blue on the hind ones. Outside this band is a row of yellow spots, succeeded by a black border, which last is followed by a yellowish margin. The base of the wings is black, with yellow dust, and the nervures are bordered with black, while there is a good deal of black along the costal margin. Each hind-wing bears a large red eye- spot at the anal angle. The colouring of the under- surface (Fig. 13) closely resembles that of the upper; but there is much less black, and what there is, is much more thickly powdered. There are three additional red spots on the hind-wings. The sexes are similar. In Scotland and Ireland the Swallow-tail has, perhaps, never been found ; but many of the counties of England APORIA. 39 have at times supplied it, at least singly, though probably most of those that turn up now and again in unexpected places have escaped from captivity. Its chief home now is in the Fens about Cambridge, Huntingdon, and Nor- folk, two favourite localities being Ranworth Fen and Wicken Fen, but it is there less plentiful than formerly, and it is to be feared that, as the drainage of the Fens goes on, it will share the fate of the Large Copper, and become extinct as far as our islands are concerned. FIG 16. PAPILIO PODALIRIUS. Though it is, of course, a good thing that the Fens should be drained and cultivated, yet we could not help feeling regret should this remove from our list such an exquisite butterfly as Papilio machaon. Aporia, Hiibner. Aporia, the next genus, contains but one British species, crat&gi (Fig. 17), and even this has some- 40 THE BOOK OF BRITISH BUTTERFLIES. times been placed in the genus Pieris with the Large White (P. brassica\ which, on a cursory glance, it somewhat resembles. But a second glance will shew many points of difference, the most noticeable being the presence of characteristic black spots on the wings of P. brassicce and their absence from those of A. cratagi ; and on the other hand, the presence of black nervures on the wings of the latter, and their absence from those of the former. A. crataegi, Linn. (Black-veined White, or Butterfly of the Hawthorn as the specific name indicates) (Figs. 17 to 20), is now so scarce in this country, if not quite extinct, that the date of its capture may be marked as a red-letter day in the fortunate naturalist's diary. In some places on the Continent, on the other hand, it is so abundant that its larvae are looked upon as pests, and justly so, for besides the Hawthorn they affect other trees of the Rose family the apple, pear, and so on. This butterfly was confined to the southern half of England, and there was very local, but it occasionally appeared in abundance at a few places, notably in Kent and Hereford. That it should have died out is to be wondered at, considering that its food-plants are so very common. It might once have been met with in Mon- mouth, Worcester, Gloucester, Somerset, Hants, Berks, Sussex, Huntingdon, Northants, Isle of Wight, &c. apparently a wide enough range ; but, though it was found in all of these districts at least, yet the specimens were as a rule few. The last well-authenticated capture was made on June 9, 1888, at Ramsgate.* In June the eggs are laid on the Hawthorn (Cratcegus Oxyacantha) or else on the Sloe (Prunus spinosa), and r A note appeared in Science Gossip of January, 1893, mentioning the occurrence of specimens in Cornwall as late as 1891. APORIA CRAT7EGI. are hatched in from ten days to a fortnight. The larvae are gregarious that is, they live together in a silken web APORIA CRAT^GI spun by themselves, and only come out of it to feed before and after the heat of the day. They also hibernate during 42 THE BOOK OF BRITISH BUTTERFLIES. the winter in a stoutly-made web of a similar kind. As spring advances, however, they leave the web and separate. They are full-fed about the end of May, and are then about 2 in. in length (Fig. 20). The divisions between the segments are well marked. The head is black, and so are the six legs, but not the claspers ; the ventral surface is pinkish-grey, and the dorsal reddish-brown with heavy black markings. The dorsal colouring ends abruptly with a broad black band on each side. Along the middle of the back are two fine, somewhat interrupted, black lines, and between these and the broad black lines on each seg- ment are two large black dots, one on each side, and several smaller ones. The colouring of the ventral surface is rather paler near the black division-line, and is elsewhere finely dotted with black, with several larger black marks on the mid-ventral surface. The spiracles are black and the claspers grey. The ventral surface bears a number of fine white hairs; the rest of the caterpillar is slightly downy. The chrysalis (Fig. 19), which should be sought for in early June, is somewhat robust and has most of the usual prominences rounded off. It is attached to its late food- plant by the tail and by a band of silk round the thorax. The ground-colour is pale yellowish-white, similar to that of the pupa of Pieris brassicce. It is marked, too, with numerous black dots ; but they are larger and much more pronounced than in brassiccz. The wing-cases are deeply lined with black. The imago (Figs. 17 and 18), which is on the wing at mid-summer and a month or so afterwards, and frequents heaths and wooded country, is pale creamy-white in colour, and rather thinly covered with scales. All the wings are rounded and fringeless, the boundary being formed instead by a nervure, black like all the rest, as the common name points out. Where each nervure of the PIERIS. 43 fore-wings meets the hind-margin is an ill-defined, blackish, triangular mark, which is just hinted at also in the hind-wings. In the female, some of the nervures of the fore-wings are brownish instead of black, and the wings are even more transparent than in the male. The upper and under surfaces are almost identical. Pieris, Schranck. The genus Pieris, named after the Muses (Pierides) who were worshipped on Mount Pierus, contains four British species : brassiccz, raptz, napi, and daplidice, the first three being particularly common everywhere, while the last is equally scarce. They are on the wing all the season through with the exception of a short period about July between the early and the later broods. The universal admiration which the delicate markings of daplidice call forth is no doubt in a great measure due to its rarity ; but, in the eyes of an observer who can admire a beautiful object, even if it is a common one, the other three species are not far behind it in beauty, a beauty due to simplicity chiefly, for three colours only a creamy-white together with black and yellow combine to adorn the insects we are considering. The sexes differ considerably, the variations being remarkably similar in the first three species. The perfect insects have six legs, all adapted for walking, and the knobs of the antennae rather elongated. The wings have a simple, rounded outline. The somewhat downy caterpillars are almost cylindrical, just tapering a little towards the two extremities. So common are the larvae of brassicce and rapcz in some seasons, that cabbages and other Crucifercz are absolutely riddled by them. Luckily, however, they have enemies, which usually succeed in keeping them 44 THE BOOK OF BRITISH BUTTERFLIES. within bounds. Birds destroy them wholesale, while none too seldom they meet the fate of their food-plant, being cooked and sent to table with it. But they, as well as other larvae, are subject to the attacks of ich- neumon flies, each species, as a rule, having its own particular parasite. These deposit their eggs within the body of their prey, and when hatched the ichneumon grubs feed on the non-vital parts of the caterpillar, till it is on the point of pupating, when they eat their way out and spin a number of small yellow cocoons around their dying host. The appearance of the ichneumon V FIG. 21. ICHNEUMON FLY OF P. BRASSIC*. of the Large White will be gathered from Fig. 21, which is magnified about eight diameters. In all four species the pupae, which are very much angled, somewhat as in the Vanessida^ but not gilt as the latter usually are, bear a strong family likeness. They end anteriorly in a single point : in each there is a greenish or greyish ground- colour, sprinkled with numerous black dots, arranged in a more or less regular manner. All are fastened to a silken pad by tiny hooks at the anal extremity, and further supported by a silken girdle round the anterior part of the body. So supported, they pass the winter not on the food-plant, but under the coping of a wall or in some similar place of shelter. PIERIS BRASSIC7E. 45 If we except the butterflies that hibernate during the winter, the Pierides are the first to appear upon the wing, coming with the primrose, whose pale tints they borrow, and, like it, proclaiming to the world the glad return of spring. The first two species of the genus are those with which a beginner will probably make an early acquaintance, for they are particularly homely creatures, being found plentifully in the gardens, and even streets, of our towns, and moreover falling an easy prey to the hunter in consequence of their slow, uncertain flight. P. brassicae, Linn. (Large Garden White, Garden White, Large White, or, as its specific name implies, the Cabbage White) (Figs. 22 to 26), is not only the largest species of the genus but also shares with its smaller relative (P. rapes) the rather doubtful honour of being one of the commonest of British butterflies. In May and again in August the yellowish, sculptured eggs are laid in clusters on Cabbages and other Crucifertz, Nasturtiums (properly Tropaeolums), &c. They hatch in ten days or a little more or less, and after four moults are full-fed towards the end of June and beginning of September. The imago of the first brood leaves the chrysalis in July ; but the September chrysalides remain unbroken till near the end of the following April, and produce the spring flight of butterflies. The cylindrical, downy caterpillar (Fig. 26), which is only too well known to many people, often reaches as much as 2in. in length. The divisions between the segments are not very distinct, and each segment is divided into four sections. There is a medio-dorsal yellow stripe as well as two lateral ones. Above these latter stripes the four sections of each segment are marked with large transverse, somewhat warty blotches, which in the second segment seem to have coalesced. Below Female. PIERIS BRASSIC^E. PIERIS BRASSICjE. 47 the lateral stripes the black marks are fewer and reduced to dots. On each clasper is a slightly larger black dot, and the head is a good deal marked with the same colour. The ground-colour of the pupa (Fig. 25) is a greenish- white, sometimes slightly tinged with bluish-green or red, and always profusely sprinkled with small black dots. It has a medio-dorsal serrated keel and two lateral ones, the projections bearing large black marks and being tipped with yellow. The anterior extremity is pointed ; there is a high medio-dorsal point on the thorax, as well as a large projection on each lateral keel near the tip of the wing- cases. The outline of the imago (Fig. 22) is simple, the wings are rounded, the costal margin of the fore-wings is dis- tinctly arched and the tip pointed. The ground-colour is creamy-white. On the upper surface the fore-wings are tipped with a broad black mark, gradually narrowing till it disappears on both the costal and hind margins. On the hind-wings is a small black spot about the middle of the costal margin. The base of all the wings is usually sprinkled with black scales. The female (Fig. 24) has, in addition, a circular spot near the centre of the fore- wings and another between it and the inner margin, along which is a club-shaped black mark, starting near the second spot and gradually narrowing towards the base of the wing. On the under-surface (Fig. 23) the ground-colour of the fore-wings is creamy, the tip being yellow instead of black, while the two circular spots of the upper surface of the female are present in both sexes. The hind-wings are yellow, powdered with black scales, and having just a trace of the black spot found on the upper surface. Specimens sometimes occur much more thickly sprinkled than usual with black scales, which give them a very dusky 48 THE BOOK OF BRITISH BUTTERFLIES. appearance. On the other hand, many members of the spring brood have the black tip of the fore-wings much powdered with white scales. This butterfly has been known to cross the straits from France in large numbers. P. rapae, Linn. (Small Garden White or Small White) (Figs. 27 to 31), so closely resembles P. brassicce in colour and markings that, did we not know it in any other than the perfect state, we might be inclined to look upon it simply as a small variety of its larger relative, especially as they are on the wing together, and haunt similar localities. It equals, if not exceeds, P. brassicce in the damage it does to cabbages and so forth, and like that butterfly is given to migrating at times in large numbers ; indeed, we find that on 5th July, 1846, a tremendous flight crossed the straits from France to Dover in so thick a mass as to darken the air as they passed. About the middle of the present century rapa made its appearance in Canada, where it had previously been unknown. Of course, we can hardly suppose that its wings carried it there : it was doubtless unwittingly transported by human agency in the egg or chrysalis state, unless indeed it was knowingly introduced by some experimental entomologist. Most butterflies only fly in the sunshine, but the Small White is not quite so fastidious in this respect ; it occasionally flies, as do its congeners, when the weather is somewhat dull, and even, it is said, after sunset, while it is usually the first on the wing in the morning and the last to retire in the evening. Several varieties have been noticed, among them one in which the ground-colour of the wings is a bright yellow. The dark markings, too, are subject to much variation in size and intensity, sometimes being almost or quite absent, especially in the spring brood, while in the brood that PIERIS RAP.E. 49 appears at the end of the summer the markings are usually much more developed ; indeed, a specimen is recorded as having been taken in Scotland of a uniform brownish- black colour on both surfaces of all the wings. Again, PIERIS RAP/E. the individuals of the second brood are often very much smaller than those of the vernal one, specimens (formerly named P. metro) being sometimes taken scarcely sur- passing the Small Heath (Cosnonympha pamphilus) in size, while some individuals of the earlier brood almost equal ordinary specimens of P. brassiccz. 50 THE BOOK OF BRITISH BUTTERFLIES. The eggs, which are laid first in April and May, and again in July and August, may be found on Cabbages and other cruciferous plants, as well as on Mignonette, Nastur- tiums, &c. The larvae of the first brood hatch in just under a fortnight, those of the second in about ten days. In about three weeks the caterpillars (Fig. 29) are full- grown, being then about i^in. in length, and green in colour, somewhat darker on the dorsal than on the ventral surface, the two tints being separated by a line of yellow spots in pairs along the spiracular region. There is also a yellow stripe along the middle of the back. The divisions between the segments are not clear, and each segment is divided into half-a-dozen transverse sections. The head and body are covered with numerous tiny warts, mostly black, each of which bears a very short, slender hair. The chrysalis (Fig. 31), which is light grey usually, though sometimes tinged with red or green, is marked with black dots, which are, however, neither so large nor so numerous as in the case of P. brassier. A few dots larger than the rest are found chiefly on the points of the projections, which are just tipped with pale yellow. There is a medio-dorsal keel as well as a pair of lateral ones, the first having a high prominence on the thorax, and the latter one near the tip of each wing-case. This chrysalis, though slender, has a rather rigid appearance. Very dark specimens are occasionally found. The imago (Fig. 27), which appears first in April, and is on the wing all the summer through, with the exception of a short period about the end of July, has all the wings rounded, the costal margin arched, and the tip obtusely pointed. The upper surface has at the tip of the fore- wings a dusky mark much less decided than in P. brassiae, a small black spot (absent in the male of P. brassica) in PIERIS NAPI. 51 the centre of the fore-wings, and another in the middle of the costal margin of the hind-wings. The female (Fig. 28) has in addition a second black spot on the fore-wings between the central one and the hind-margin, and a club- shaped mark along that margin, starting from near the second spot and tapering towards the base of the wing. The sexes do not differ on the under-surface (Fig. 30), where the two dots of the female are repeated in both ; the tip of the fore- wings is yellow, and the hind-wings are yellow, slightly sprinkled with black scales. P. napi, Linn. (Green-veined White) (Figs. 32 to 36), received its specific name from the Rape, Brassica Napus, which was thought to be its special food-plant, though this does not seem to be the case. A glance at the under- surface of the imago will give a sufficient reason for the bestowal of its common name, except that the veining is often dusky-brown instead of green. It is not easily distinguished from P. rapce on the wing, and probably is not quite so common, as it certainly is not so homely. The eggs, which should be sought for in April and May and again in July and August, are laid chiefly on various cruciferous plants, the commonest being Garlic Mustard (Sisymbrium alliaria\ Early Winter Cress (Barbarea prcecox)^ Watercress (Nasturtium offirinale), &c. They are hatched in a little less than a fortnight, and are full-fed during June and September. The imagines result- ing from the early brood come out in July and August, while those from the later appear in the following April and May. P. napi is therefore on the wing almost continuously from the end of April till August. The larva (Fig. 34) is of about the same size as that of rapce, and very closely resembles it. The ground-colour, however, is a slightly paler green ; there is no dorsal yellow line, and but one lateral yellow spot in each segment. E 2 52 THE BOOK OF BRITISH BUTTERFLIES. The spiracle, which is black in a red patch, is situated in the yellow spot. The subdivisions of the segments, the tiny warts and the short hairs of P. rapce are repeated in the caterpillar before us. The chrysalis (Fig. 36) much resembles that of P. rapa. The ground-colour, however, is light green (sometimes 35 PIERIS NAPI. pinkish-yellow), some of the points of the keels being yellow. It bears a number of dark brown marks. The imago (Figs. 32 and 33) of both sexes is similar to that of the Small White, except for the addition of the green markings along the nervures on the under-surface (Fig. 35), these markings also appearing more or less, but PIERIS DAPLIDICE. 53 of a dusky hue, on the upper surface, where they spread out forming a small triangle on the outer margin, as in Aporia cratcegi. The green colour is produced by a sprinkling of black scales on a yellow ground. When therefore the ground-colour is mdre than usually white the veinings become a dusky brown instead of green. P. napi varies in distinctness of the green veinings and as much as does the last species in size, as well as in the development of the black markings. Several varieties had once special names, which have now gone out of use. P. daplidice, Linn. (Bath White or Chequered White) (Figs. 37 to 41), has obtained its second common name from the markings of the under-surface of the hind-wings, which are delicately chequered with green and white. Un- fortunately this beautiful butterfly is extremely scarce, all the specimens caught in this country having been taken by chance, there being no spot where one might hunt with a reasonable hope of catching them as there is with some of our scarcer butterflies the Lulworth Skipper, for instance. No captures have been made except in the south-eastern and southern counties from the Fens to Devonshire. Nor have the individuals been many, as the following list of captures, recorded in The Entomologist for over twenty years, will shew: 1859, three in Cambs. ; 1868, one, near Newmarket; 1871, one, near Abbot's Wood, Sussex; 1872, which was somewhat of a " dapli- dice-yeax" one near Christchurch, one at Portsdown Hill (Hants), one near Faversham, six or more at Dover, five at Deal, one near Folkestone, one at Tilmanstone (Kent), eight near Beachy Head (Sussex), one at Felix- stowe (Suffolk), one at Aldeburgh (Suffolk), two near Newmarket, and one in Surrey; 1876, one at Folke- stone and one near Southend; 1884, two at Dover and one seen near Ashford (Kent); 1885, two at" Folkestone. 54 THE BOOK OF BRITISH BUTTERFLIES. There is also an undated record near Kenley Station, Surrey. It does not need a very close scrutiny of the above to raise a suspicion that the English specimens have crossed over of their own free will, or possibly against it, from the* Continent, where the species is common. The known migratory habits of its congeners PIERIS DAPLIDICE. lend plausibility to this theory. Or they may have been accidentally imported in the egg or caterpillar stage from abroad, for most, if not all, of the specimens taken have belonged to the second brood. All the Pierides have weak flight, and this one in particular, so once it is recognised there will be little fear of losing it. It PIERIS DAPLIDICE. 55 might, however, be easily mistaken, and probably some- times is, for either one of the smaller Whites or the female Orange-Tip, which last it closely resembles in its markings. The eggs of this much-coveted butterfly will be found if anywhere on one of the two species of Mignonette indigenous to Britain (Reseda lutea and R. luteold), and possibly on Flixweed (Sisynibrium Sophia) and other cruciferous plants. They are laid about the beginning of May for the first brood, and again in August or September. The larvae therefore would be found in May and June, and also in September ; the pupae about July, and also from September till April; while the imago should be on the wing almost any time from April or May till September with the other Whites, the winter being passed of course in the chrysalis state. The larva (Fig. 40). which is from lin. to i^in. in length, is of a pale bluish colour, with four yellow stripes, two being dorsal and two lateral, one of the latter along each of the spiracular regions ; the ventral surface is somewhat greenish. The caterpillar is covered with black warts and dots of various sizes, from which proceed black hairs ; the segments, which are fairly distinct, are subdivided into six sections. The pupa (Fig. 41) is greyish, marked with black spots, and having a couple of dark streaks on the wing-cases. It is rather robust and somewhat prominently keeled. All the wings of the imago (Figs. 37 to 39) are simple, the tip of the fore-wings is rather blunt and the costal margin very slightly concave, the hind-margin of the hind-wings is straight. The ground-colour is white, with a very slight tinge of cream ; on the upper surface the fore-wings are tipped with a broad blackish patch containing four white spots, and between this patch and 56 THE BOOK* OF BRITISH BUTTERFLIES. the base of the wing is a black spot crossed by a white- streak. These markings are to some extent reproduced on the under-surface, but there powdered with yellow, and in addition there is a dark spot near the anal angle, which also shews on the upper surface of the female. The upper surface of the hind-wings in the male (Fig. 37) bears only a few black scales on some of the nervures, but in the female (Fig. 38) it is chequered with black on the hind-margin, and clouded with the same elsewhere. The chief beauty of the insect, however, is to be found on the under-surface of the hind-wings (Fig. 39), the markings on which form a beautifully chequered pattern of green and white. The green, as in the Green- veined White, is caused by a sprinkling of yellow scales over a black ground. The white of the under-surface of all the wings is also in places powdered with yellow, Euchloe, Hubner ; Anthocharis, Bdv. Euchloe is the recognised name of the genus to which our next butterfly belongs, though by many Anthocharis * is preferred. Why it has deserved the latter name it is rather hard to say, for what butterfly does not delight in flowers? But perhaps the name refers to the delight we should take in tracing the resemblance that the little Orange-tip bears to a flower that has apparently taken wings to itself with the intention of no longer being fettered down to earth ! E. cardamines, Linn. (Orange-tip, or, according to the specific name, the butterfly of the Cardamine, or Cuckoo- flower) (Figs. 42 to 47), is, for several reasons, one of the favourites of the entomologist. It is not only very common, but, at the same time, very delicately beautiful. &v0os (anthos), a flower, and x a ' l P flv (chairein), to delight in. EUCHLOE CARDAMINES. 57 Moreover, it is an early comer, appearing with the Cuckoo-flower, whose name it has borrowed, and finish- ing its brief existence in earty June, ere summer has well commenced. It falls an easy prey to the collector, experienced or inexperienced, for its flight is weak, and the bright orange tip to the wings renders the male a rather conspicuous object by the hedgerow in the spring. The female is not so easily distinguished while on the wing, for the absence of the orange tip gives her much the appearance of a very small White, and her more sober colouring no doubt often proves her safeguard, for more males are usually noticed than females. E. car- damines is on the wing but once in the year, and then only for a short time comparatively, so if specimens are wanted they must be sought for, if indeed it is neces- sary to seek at all, before mid-June. Now and again, however, a few specimens are taken in late summer or autumn ; these are representatives of a second brood ; that is to say, the chrysalides have produced the perfect insect before the winter instead of after it. All such instances are worth recording in the entomologist's notes. The Orange-tip delights to make its apparently aimless way along the hedgerows, but also may be found in woods and gardens, and almost any other place that butterflies are accustomed to frequent. No particular locality need be given, for it is common everywhere throughout the country. A habit the Orange-tip has of reposing, when the sun is not shining, on the white flower-heads of the large parsley-like plant Anthriscus sylvestris, is worthy of notice. It is no doubt a case of what is sometimes called " pro- tective resemblance." For when the wings are closed, and only the green-and-white chequering of the under- surface of the hind-wing is exposed, it becomes an 58 THE BOOK OF BRITISH BUTTERFLIES. extremely difficult matter to distinguish the insect from the flower-head on which it rests, for the latter consists of a large number of tiny white flowers, between which show little bits of green, producing a chequering very similar indeed to that on the insect. This is by no means an isolated example : cases of " resemblance " are common not only among the butterflies, but amongst all classes of insects, not to mention divisions of the Animal Kingdom outside the insect group. How many caterpillars owe 'heir safety from numerous enemies to their similarity in colouring to the leaves on which they feed ! The eggs are laid singly about the end of April or beginning of May, on the flower-stalks of some of the following cruciferous plants, and possibly others : Garlic Mustard (Sisyntbrium alliaria\ London Rocket (Sisym- brium Irio), Hedge Mustard (Sisymbrium officinale), Flix- weed (Sisymbrium Sophia), Cuckoo-flower (Cardamine pratensis\ Tower Mustard (Turritis glabra), Treacle Mustard (Erystmum cheiranthoides\ Charlock (Si*apis arvensis), Winter Cress (Barbarea vulgaris\ Penny Cress (Thlaspi arvense), as well as Horseradish and other garden plants. The eggs hatch in nine days, or even less, and the young larvae feed on the pods and seeds (seldom on the leaves) of the plants enumerated above. They are full-fed on the average about the beginning of July, and after changing into the chrysalis form remain in that stage on the stems of the food-plant till the following April, when the butterfly appears on the wing and remains out till nearly midsummer. The larva (Fig. 42), which is about iiin. in length, and tapers somewhat toward the anal extremity, is rather dark green dorsally, but yellower on the ventral surface. These two colours are separated by a clear white line, sharply defined below, but gradually fading into the EUCHLOE CARDAMINES. 59 green above. Each segment is divided into sections, and the whole surface is covered with tiny warts, each emitting 47 Female. EUCHLOE CARDAMINES. a short hair. The warts are black, except on the lateral stripe, where most are white. The head, legs, and claspers are green, the head being sprinkled with black. 60 THE BOOK OF BRITISH BUTTERFLIES. The chrysalis is of the singular shape shown in Fig. 43, somewhat resembling a half-moon, the two ex- tremities being very much pointed. It is dull green dorsally and brownish-pink ventrally. The wing-cases project on the ventral surface as a kind of arch, while the dorsal surface is concave. There is a somewhat close similarity between P. daplidice and the female of A. cardamines (though the differ- ence is considerable when the butterflies are compared), consequently when identifying either, especially from a description, great care must be used. The ground- colour of the imago (Figs. 44 to 47) is white, all the wings are rounded, and the costal margin is slightly convex. On the upper surface at the tip of the fore-wings is a greyish mark extending about two-thirds down the hind-margin, while on the margin itself there are little patches of white between the nervures, which on the hind-wings are tipped with black. There is a semicircular black patch in the middle of the fore-wings, usually smaller in the male, as also is the patch at the tip; the base of the wings is clouded with black. The central spot is smaller than in Pieris daplidice^ and not divided by a white streak as in the latter. On the under- surface (Figs. 45 and 46) the grey tip of the fore-wings is replaced by faint greenish markings on the nervures, and the central spot is repeated. The hind-wings are beauti- fully chequered with well-defined green markings on a white ground. (In P. daplidice the green markings are toned down.) The bright orange patch covering the hind half of the upper surface of the fore-wings, and repeated in part below, distinguishes the sexes. It should be noted that as in P. napi the green markings are pro- duced by a mixture of black and yellow scales, easily separable under the microscope. LEUCOPHASIA SINAPIS. 6 1 There are no very marked varieties of E. cardamines, though differences in size occur as well as in the develop- ment of the markings, and the ground-colour has been known to be quite yellow. Leucophasia, Stephens. Our attention is next claimed by a little butterfly that belongs to the genus Leucophasia , a name given in consequence of the white appearance of the individuals comprised in it. The genus contains but one British species, whose slender form and small size will doubtless at once distinguish it from every other British butterfly. But should there be the slightest doubt as to its identity, this may be quickly set at rest by reference to the some- what uncommon length of the nervures arising from the discoidal cell, as shown in Fig. 49. L. sinapis, Linn. (Wood White), is indeed a very singular little butterfly, quite fairy-like in appearance, with its long, slender body and slight, delicate wings, and possessing no fine markings or bright colours with which to make up in beauty what it lacks in size. But were it ever so fine an insect, its beauty would be lost to the observation of the many, for the Wood White delights to wing its languid way along the silent wood- land paths and glades. It is seldom seen to settle, and its aimless flight reminds one of some restless spirit wandering on and on and finding no repose, a fancy aided by the graceful airiness of the little creature. In consequence of the retired spots which it delights to haunt, the Wood White is none too often seen, though Newman records that it has been taken in most of the counties of England, and abundantly in some places, of which we might instance Lancashire and Westmoreland, and parts of some of the southern counties, Devon, Hants 62 THE BOOK OF BRITISH BUTTERFLIES. Wilts, Surrey, &c. It does not seem to have crossed the Northern border, and cannot be looked upon as a common insect in Britain or, indeed, in any part of North-Western Europe. L. sinapis is possibly less common in England than formerly, and if we are to judge by captures extending over some twenty years recorded in The Entomologist^ its presence is chiefly confined to the southern half of England ; South Devon, Worcester, and the New Forest being the localities most often mentioned. LEUCOPHASIA SINAPIS The eggs are laid singly about the end of May and again about the beginning of August. The larva is found during June, and again from August till the cold weather begins. The second brood, which passes the winter in the pupa state, produces the spring flight of butterflies in May, while the June caterpillars are in the pupa in July, and produce the second flight of butterflies in August. The larva (Fig. 50), which feeds on the Tufted Vetch COLIAS. 63 (Vicia Graced), Bird's-foot Trefoil (Lotus corniculatus), Tuberous Bitter Vetch (Lathyrus macrorhizus\ and Hop Trefoil (Trifolium procumbens\ seldom exceeds fin. in length. It is nearly cylindrical, just tapering a little towards the two extremities. The segments are divided transversely into six sections, and the surface is covered with short whitish hairs. The ground-colour is green, and the anterior part of the body covered with tiny black dots. The medio-dorsal line is dark green, followed on each side by yellowish-green ; then comes a dark green line followed by the spiracular line, which is bright yellow. The ventral surface is green, and so are the legs and claspers. The pupa (Fig. 51), which is fastened by the tail and girt, is sharply pointed, especially at the anterior extremity. The ground-colour is a beautiful green, which has a yellowish tinge towards the anal extremity. There is a pink stripe down each side, and the wing-cases are bordered and veined with the same colour. The ground-colour of the imago (Figs. 48 and 49) is pure white, the only markings being a squarish black spot on the upper surface, at the tip of the fore-wings, and a tinge of black at their base. On the under- surface (Fig 49) there is. in places a sprinkling of black scales, and a tinge of yellow, the latter especially at the tip and base of the fore-wings. In the female the spot at the tip of the fore-wings is often absent, or nearly so. Colias, BoisduvaL The genus Colias (containing the Clouded Yellows), is, as far as British species are concerned, a very distinct one. The ground-colour of the imago is white, yellow, or orange, with a dark brown border along the outer margin of all the wings. The fore-wings bear a central 64 THE BOOK OF BRITISH BUTTERFLIES. black spot and the hind-wings an orange one, which underneath is centred with silver. The antennae are red, a peculiarity which these butterflies share with the genus Gonopteryx, the only species of which rhamni approaches the two species of Colias in other respects also. Specimens of the genus are to be found in most parts of the world, many being Arctic. Some of these latter, and, indeed, others of the genus, have a violet or blue tinge to their wings, and so approach the Blues. The two British species (Figs. 52 to 58) are C. hyale and C. edusa, both of which in the larval stage feed on various leguminous plants, especially two Clovers (Trifolium repens and T. pratense), Lucerne (Medicago sativa), Nonsuch (M. lupulina\ &c. In each case the eggs are laid in the spring, and the caterpillars are to be found in June and July. They enter the chrysalis state about the end of July, and are on the wing from August till they retire in order to hibernate during the winter. Edusa is sometimes on the wing as late as November, but hyale generally retires earlier. They leave their winter quarters, usually much reduced in number, in May, and then the eggs are laid which pro- duce the August flight. The British Edusas occasionally breed in the autumn, and pass- the winter in the pupal (or possibly larval) stage. Indeed, it has been thought of late that the winter is oftener passed in the pupal or perhaps larval stage, in which case these butterflies are double-brooded. Both species, but hyale especially, are very capricious in their appearance. In some seasons edusa, and less frequently hyale^ have swarmed in many parts of the south of England, the former being found also in gradually decreasing numbers in the Midland counties, individuals sometimes extending into the very north, and COLIAS HYALE. 65 even over the Border. Then may follow several years during which very few will be seen, till a fear almost arises that the species may be dying out a fear to be set at rest by another season of surpassing plenty. Edusa, however, seems to have established itself more firmly of late as a British butterfly. Entomologists have found these capricious appearances a very difficult problem to solve ; in fact, no satisfactory solution seems to have been found. Some have suggested that individuals have been blown, or of their own free will have flown, across the sea from the Continent, and these, breeding here, have produced the plentiful autumn flight of butter- flies. It has also been suggested that some seasons the eggs or pupoe may lie dormant, and so the butterflies of several seasons may all appear in one. But the plants on which the eggs are laid are scarcely "of a nature to preserve them for any length of time. It may be that some years few survive the winter, and leave their hibernacula in the spring, while more do so in others. It was at one time thought that a plentiful season occurred once in seven years ; but there have been too many exceptions to allow much faith being put in the supposition, which, however, was not altogether unwarranted. C. hyale, Linn. (Pale Clouded Yellow or Clouded Sulphur) (Figs. 52 and 53), is, like its congener, very swift on the wing, and haunts similar localities, but is by no means so common. Indeed, it must be looked upon generally as a scarce butterfly, though in the south- east of England it occasionally appears in profusion, and singularly enough during the earlier part of the present century these seasons of profusion occurred once every seven years for several times in succession. This came to be looked upon as a law till 1849, since which it has failed. 66 THE BOOK OF BRITISH BUTTERFLIES. When full-fed, the larva, which is seldom seen in England, is i-Jin. long, and velvety dark green in colour. In the spiracular region is a whitish-yellow line fading above into the ground-colour. There is a pink spot between each pair of spiracles. The fu\J-fed larva of C. hyale and C. edusa are very similar, but the former has longer and darker hairs, and a rougher and less rounded appearance, so writes Mr. H. Williams in an interesting paper in The Entomologist, xxvi., p. 7. 52 COLIAS HYALE. On the same authority we have it that the pupa of C. hyale is almost identical in shape, colour, and markings with that of C. edusa, described below, but, perhaps, is rather more slender and upright. It is suspended by the anal extremity and girt, is green, with a yellowish stripe down each side, and has the wing-cases bordered with the same colour. The imago of hyale (Figs. 52 and 53) differs from that of edusa in that the ground-colour is bright yellow instead of orange, and that the male, as well as the female, COLIAS EDUSA. 67 has spots in the brown border, which is less clearly denned, and very narrow on the hind-wings and at the anal angle of the fore-wings, besides not being con- tinued along the inner margin of the fore-wings as it is in edusa. The chief home of hyale in England is in the south- eastern maritime counties, especially where chalk prevails ; but it is also found occasionally in many other counties. There is a variety of the female in which the ground- colour is white, or nearly so, corresponding to the pale variety of the female of edusa. C. edusa, Fabr. (Clouded Yellow, or Clouded Saffron) (Figs. 54 to 58), one of the most brilliant of our larger butterflies, is usually rather more than 2 in. across the wings ; these have a somewhat powerful appearance, and well the insect knows how to make use of them, for its flight is very rapid, giving the pursuer little chance of running it down. Indeed, as in the case of so many other butterflies, the would-be possessor does best to watch the creature to a flower, and to take it there. If, in the excitement of the moment a bungling stroke perchance is made, it will be no use paying attention to the edusa that has gone, but be on the lookout for the next one to appear. Until 1892, this somewhat erratic butterfly had not occurred in profusion since 1877, in which year it was reported from the Orkneys to the extreme southern point of England ; but, after an interval of fifteen years, entomologists were again gladdened by a great " edusa-year," and they are doubtless hoping that in some form or other enough have escaped the winter's hardships and the hunter's net to again delight us with their presence. The larva (Fig. 58) is cylindrical, like the rest of F 2 54 Male. -; f y ; * r V/ Female. COLIAS EDUSA. COLIAS EDUSA. 69 its family, but tapers a little towards the anal extremity. The segmental divisions are not very distinct, and each is subdivided into several sections. The ground- colour is bright green, and the surface is covered with minute black warts, from each of which rises a pale hair. The warts are surrounded by whitish circles. There is a rather narrow, white spiracular line, bearing a pinkish patch in each segment, with a black spot below it, and the white spiracle in front. The chrysalis (Fig. 57), which is suspended by the anal extremity, and girt, is rather stout, something like that of the Brimstone Butterfly, Gonopteryx rhamni. The wing-cases are long, and project ventrally ; the anterior extremity ends in a sharp point, and there is a rather pronounced thoracic bump. The colour of the chrysalis is pale green, inclining to yellow in places, especially on the ventral surface. On each side, below the wing-cases, is a dull yellow stripe with - three black dots, and a reddish stripe next that ventrally. Each wing-case bears a black dot in the centre, and a row of similar ones near the hind-margin. The imago (Figs. 54 to 56) frequents lanes, meadows, woods, &c., but especially takes delight in railway-banks and lucerne- or clover-fields. The ground-colour is a deep rich orange, with a broad, dark brown outer border to all the wings. This border bears, in the male (Fig. 54), yellow lines on several of the nervures near the tip of the fore-wings, and in the female (Fig. 56) several ill-defined yellow spots on each of the wings. There is a black central spot on both surfaces of the fore-wings, and a large orange one on the upper surface of the hind-wings, which spot below has a reddish tinge, and contains two silver spots, one very much smaller than the other. The hind-wings and 70 THE BOOK OF BRITISH BUTTERFLIES. the base of the fore-wings are thickly sprinkled with black scales on the upper surface. On the under-surface ( Fi g- 55) the ground-colour is yellow, with a greenish tinge on the hind-wings and the hind-margin of the fore- wings, with an orange tinge elsewhere. Besides the markings mentioned thus far, the under-surface has two brown spots on the costal margin of the fore- wings and one on that of the hind-wings, and six dark spots on each wing (smaller and paler on the hind-wings) parallel to the hind-margin. The fringe is pink. There is a constant variety of the female called helice, Hub., in which the orange ground-colour is replaced by a yellowish-white. The hind-wings look darker, for the sprinkling of black scales is still present. Specimens some- times occur intermediate between the variety and the type. C. edusa has been taken throughout England, and in the south of Scotland ; but its home is in the southern, south-eastern, and south-western counties, where it is now usually fairly common, if not abundant. It is some- what partial to the neighbourhood of London, and becomes less and less frequent as we proceed northwards through the country. Gonopteryx, Leach. When in the early autumn the colours of the ripened fruit and grain make the epithet of golden peculiarly applicable to the time of the year, appears the latest of our English butterflies ; and, as if to be in keeping with the golden hues around, it mounts on wings of gold to flutter in the mellow autumn sunshine. G. rhamni, Linn. (Brimstone Butterfly) (Figs. 59 to 62), is on the wing from August onward, till the cold weather compels it to seek some sheltered nook wherein to winter ; but a more than usually warm day will tempt it forth GONOPTERYX RHAMNI. 71 again, and it is always one of the earliest butterflies to appear in the spring. As is th case with others that hibernate, the sexes take no notice of each other in the autumn, but pairing takes place and the eggs are laid after the winter's sleep is over. It does not hide its charms in solitary places, but courts the road- side and the garden. It is not easily scared, and, if the net does not enclose it at the first sweep, there is usually a chance for a second ; nor is it a particu- larly active flyer, though its powerful wings appear to be specially adapted for rapid flight. For a wonder the names of the Brimstone Butterfly are well bestowed. The common name accurately de- scribes the colour of the male insect, the angles of the wings are referred to in the generic name, Gonopteryx (angle-wing), while the specific name rhamni calls atten- tion to the plants on which the larvae feed : these are the two species of Buckthorn (Rhamnus catharticus and R. Franguld], on the twigs of which the eggs are laid singly towards the end of April. The larva (Fig. 61) hatches out of the conical yellow egg in about a fortnight, 'and is full-fed towards the end of June. The general colour is bright green, and the surface is covered with small black points. The chrysalis (Fig. 62), which is bright green with brownish markings, is to be found on the twigs or under the leaves of the food-plant, hanging by the tail from a pad of silk, which the caterpillar placed beforehand on the twig or leaf. It is further kept in position by a loop of silk stretched across its back and fastened at both ends to whatever support the caterpillar had selected. After twenty days the perfect insect emerges from the chrysalis. The ground-colour of the upper surface (Fig. 59) of the male Brimstone Butterfly is a bright yellow, like 72 THE BOOK OF BRITISH BUTTERFLIES. that of the crocus or the -daffodil ; underneath (Fig. 60) the tint is greener,* especially on the hind-wings and the tip of the fore-wings. In the centre of each wing is an orange spot, which is replaced on the under-surface by GONOPTERYX RHAMNI a brown one. There are tiny dark dots at the ends of the nervures, and a row of the same on the under- surface of each wing three on the fore-wings, six on the hind-wings. Noteworthy features are the stout veins, which, when the wings are closed, give them a very GONOPTERYX RHAMNI. 73 powerful look, and the white silky hairs that meet in a ridge over the back of the insect. The antennae are short, brown in colour, and the tip has a graceful, downward curve. The ground-colour of the female is very pale whitish-green instead of gold, causing it to be often mistaken at a distance for a Large White (Pieris brassica). G. rhamni is subject to considerable variation in the size of the orange spots these sometimes, in the south of Europe and other warmer climates, almost covering the upper surface of the fore-wings. This variety has some- times been described as a separate species under the name of G. cleopatra ; but as it is said that both forms have been grown from the same batch of eggs, this does not seem to be the case. CHAPTER III. NYMPHALID/C. The Fritillaries. 'HE Fritillaries form a well-defined group of butterflies, which get their name from a resemblance between the chequered mark- ings of their wings and the somewhat similar markings of the flower of one of our wild lilies, Fritillaria Me/eagrts, the Fritillary, or Snake's- head. All the Fritillaries have an orange or orange-brown upper surface, chequered with black, but they fall into two divisions at once when reference is made to the under-surface. One division has silver markings, and the other not : the former constitutes the genus Argynnis, the latter the genus Melitica. The caterpillars are spinous, the pupae suspended by the tail only, and the perfect insects, like the rest of the Nymphalidcc, have only four perfect legs adapted for walking. Another little butterfly, Nemcobius lucina, bearing on the upper surface some resemblance to the Fritillaries, goes by the common name of Duke of Burgundy Fritillary ; it does not, however, belong to the group, and will be described hereafter. ARGYNNIS SELENE. 75 Argynnis, Fabr. There are six recognised British species in the genus Argynnis: A. selene, A. euphrosyne, A. latona, A. aglaia y A. adippe^ and A. paphia. They may be distinguished from the three species of Melit&a by the presence of silver markings (generally spots) on the under-surface, ,by the convex costal margin of the fore-wings, and usually by their larger size. The antennae are knobbed and the fore-legs imperfect. In some species the male is known from the female by the presence in the former of black lines on some of the nervures of the upper surface of the fore-wings. The chrysalides are angled, keeled, and suspended by the anal extremity only. The larvae are cylindrical and usually adorned with long, hairy spines. They are hatched in the summer, but do most of the feeding in the spring, spending the winter on or near the ground at the root of the food-plant or in its neighbourhood. All are grand butterflies not, indeed, so gorgeous as some that we are accustomed to admire, but with colours warm and rich, beautifully harmonised above, delicately picked out with silver below. Moreover, three are amongst the largest of our butterflies, and all have a strong bird-like flight, seen at its best as they come sailing along some woodland glade in the bright summer sunshine. The food-plant is usually some species of Viola. Besides the six insects enumerated above A, dia, Linn. (Weaver's Fritillary), and A. niobe^ Linn. (Niobe Fritillary), have been claimed as British, but the claim is not usually allowed. In the Northern Hemisphere the genus is a common one extending even to the confines of eternal snow; it is scarce, however, south. of the Equator. A. selene, Schiff. (Small Pearl-bordered Fritillary) (Figs. 63 to 66), is the last and usually the least of its genus 7 6 THE BOOK OF BRITISH BUTTERFLIES. The term small is, however, rather misleading, as specimens of euphrosyne occur quite as small as, or even smaller than, typical specimens of the one before us. Selene frequents, speaking generally, the same localities and situations as euphrosyne. In England, however, it is not so common as the latter, but in Scotland is more abun- dant ; it appears on the wing about a fortnight or three weeks later. ARGYNNIS SELENE. The eggs are laid on the Dog Violet (Viola canind) about June. The larvae appear about July, but soon hibernate at or near the roots of the food-plant, and reappear in the spring, being full-fed in May, in which month the pupae may be found. The imagines are out in June, possibly at the end of May. The larvae (Fig. 66) are about lin. in length, and very closely resemble those of euphrosyne. The ground-colour ARGYNNIS EUPHROSYNE. 77 is dark brown, and the spines are yellowish, some of them tipped with black ; the claspers are dingy red, and the head and legs black. The chrysalis (Fig. 65), which is attached to the food- plant, is similar to that of euphrosyne and brownish in colour. The abdomen is abruptly curved, and has two rows of short projections representing the subdorsal spines of the larva. The imago (Figs. 63 and 64) is similar in shape to euphrosyne, and so closely resembles it on the upper surface that for purposes of identification reference had better be made to the under-surface only (Fig. 64). There the ground-colour of the fore-wings is orange-brown, except at the tip, which is yellow, marked with a rather large patch of dark brown ; the rest of the markings resemble those of the upper surface, but are fainter. On the hind-wings there is the row of silver spots along the hind-margin. Within these is a broad dark brown band, interrupted in the centre by a yellow patch. This band contains a row of spots as on the upper surface. Next comes a band of pearly-white spots, interrupted in the centre, then some dark brown, followed by the yellow band of euphrosyne^ containing three pearly-white spots ; then follow some more dark brown patches, interspersed with several pearly spots. There are thus almost twenty pearly spots (scarcely silver), instead of the nine in euphro- syne. The sexes are similar.. A. euphrosyne, Linn. (Pearl-bordered Fritillary) (Figs. 67 to 70), is the commonest of the Fritillaries and one of the earliest to appear upon the wing. It is smaller than latona, and much smaller than paphia, aglaia, or adippe^ but in the markings of the upper surface resembles them all very closely. Though in general a wood butterfly, like most of its kind, yet it roams abroad, and may be 7 THE BOOK OF BRITISH BUTTERFLIES. taken in many other situations also. No localities need be given for a butterfly that is usually common through- out this country and in Scotland too. The eggs are laid in May and June on the Dog Violet ( Viola canina) and other plants of the same genus. The young larvae appear about the end of June. They feed till about the middle of July, and then hibernate till early in the following spring. Towards the end of April they ARGYNNIS EUPHROSYNE. become chrysalides, which are attached to the food-plant, and the perfect insects are on the wing during May and early June. The larva (Fig. 67), which is about iin. in length, is almost black in ground-colour. It is slightly sprinkled with white on the dorsal surface, while along the spiracular region a number of large whitish spots form a broad line. The head, legs, and spiracles are black, and the claspers and ventral surface dull red. The spines on this caterpillar ARGYNNIS EUPHROSYNE. 79 are hairy, and arranged as in the other Fritillaries, but they are short. In colour they are black, except the two dorsal rows, which are yellowish at the base and black at the tip. As with the rest of the Fritillaries, the anal extremity of the chrysalis (Fig. 68) is very much curved. In colour it is greyish-brown ; it is stout, and has large wing-cases. The two rows of dorsal spines seen in the larva are repeated on the chrysalis, which is keeled and much angled. The perfect insect (Figs. 69 and 70) in large specimens expands about ifin. across the wings, but it is often very much smaller. The costal margin of the fore-wings is convex, and so is the hind-margin of all the wings, which are rounded, not scalloped. The upper surface (Fig. 69) of the wings is^ a rich orange-brown, with black markings arranged as follow : On the hind-margin of all the wings at the end of the nervures, is a row of triangles ; within these, but between the nervures, is a second row; within these again, and between the nervures, is a row of black dots ; still proceeding towards the base of the wings, which is very dark, we find a number of bars joining the nervures in a zigzag manner.. On the under-surface (Fig. 70) the ground-colour is much lighter, and many of the markings are repeated, but more faintly, some of them being brown instead of black. Along the hind-margin of the hind-wings is a row of seven silver spots, fancifully thought to resemble a string of pearls, whence the common name, Pearl- bordered Fritillary. Across the middle of the hind-wings is a broad yellow bar, containing in the centre one large silver spot, and there is one more silver spot, triangular in shape, at the base of the wings, making nine silver spots in all on each hind-wing. This number should be noticed, as it forms one of the few marks of distinction between this butterfly and the last, selene. The dark brown markings 8o THE BOOK OF BRITISH BUTTERFLIES. mentioned above as present in selene are represented in euphrosyne by reddish markings not very different from the ground-colour, and therefore not so conspicuous as the same markings are in selene. The sexes are similar. A. latona, Linn. (Queen of Spain Fritillary) (Figs. 71 and 72), though one of the rarest of British butterflies, has nevertheless been taken in a considerable number of localities. It is seldom, however, that more than one individual is captured in the same locality at one time. This and the fact that most of the recorded specimens have ARGYNNIS LATONA. come from the south-eastern counties lends plausibility to the theory that they have migrated from the Continent, where they are common. But still it is very probable that latona does breed here sometimes, and we should be pleased to find it making a more settled abode amongst us, for it is a beautiful insect and one that graces the far too meagre list of British butterflies. The greatest number of captures has been made in Kent, Suffolk, Essex, and the Isle of Wight ; but Cambridge, Devon, Dorset, Hants, Norfolk, Surrey, Sussex, and Yorkshire have afforded specimens at least singly. To give some idea of the ARGYNNIS LATONA. 8 1 numbers in which latona has been taken in England during the last twenty-one years, the pages of The Entomologist have been consulted for that period, and the following is the result: 1871, one in Devon; 1872, at least seventy, chiefly in Kent quite a " latona-yzzx " ; 1874, sixteen, all in Kent, but a little doubt has been thrown upon the captures; 1876, one in Kent and one in Sussex; 1880, eighteen near Dover; 1881, one in Essex; 1882, twenty- five near Dover ; 1885, two in Sussex. The eggs are laid in August, or even September, on the Wild Pansy (Viola tricolor), and also on the Dog Violet ( V. canind) and Sweet Violet ( V. odoratd) ; Sainfoin (Onobrychis sativa\ too, and Borage (Borago officinalis) have been mentioned as food-plants. The caterpillar comes out in about fourteen days, but soon retires to hibernate near the ground under the protection of the herbage round the food-plant. In the latter part of spring it begins feeding again, and enters the pupa state late in June. The imago is out from July to September, or even October, so that it is one of the latest of our butter- flies to remain on the wing. The caterpillar, which is over an inch in length, bears several series of brownish-pink spines. These spines are short, and resemble those of the larva of the last butterfly, A. euphrosyne (Fig. 67). The colour of the caterpillar is dull smoky-brown, with a pair of dorsal and a pair of lateral yellowish-white stripes. The dark spiracular region is bordered above and below with a somewhat lighter tint. The head is yellowish-brown. In shape, this butterfly (Fig. 71) resembles rather closely the male of A. paphia. The costal margin of the fore-wings is convex, the hind-margin concave. The wings are slightly scalloped, the hind-wings a little more deeply than the fore-wings. The ground-colour of the 82 THE BOOK OF BRITISH BUTTERFLIES. upper surface is a rather deep sienna-brown, with very pale fringe, spotted with black at the ends of the nervures. Starting with the hind-margin of all the wings, we have first two fine black lines, then on the fore-wings a double row of black spots two spots between each pair of nervures on the hind-wings three such rows. Within these rows are a few more black spots, and along the costal margin of the fore-wings six black bars. The base of all the wings is dark. On the under-surface (Fig. 72) the fore-wings are lighter, and the markings similar to those on the upper surface, but fainter ; there are a few distinct silver spots at the tip in a rather bright brown ground. The hind-wings, where the chief beauty of the insect lies, are yellowish. Near the margin is a row of large silver spots ; within these is a row of rich dark brown spots with silver eyes, and within these again a number of silver spots, several being very large. All the spots are clearly defined, and their arrangement will be best made out from the illustration. A. aglaia, Linn. (Dark Green Fritillary) (Figs. 73 to 76), is possibly not so common as paphia> but rather more so than adippe. It, moreover, does not share to the same extent with the other two their great partiality for woods. It has a liking for ferny hillsides, sand-hills near the sea-shore, and so on. The eggs are laid in August on the Dog Violet {Viola canind) or the Sweet Violet (V. odorata\ and are hatched in about fourteen days. The larvae, after feeding for a time, hibernate near the roots of the food-plants, and reappear in the spring to finish feeding, being full-fed in June. The pupae may be found in that month and the next, while the imago is out in July and August. It is fairly common throughout England and Wales, occurring in abundance in irregularly scattered localities. It is common in Scotland. ARGYNNIS AGLAIA. 83 The caterpillar (Fig. 75), which is nearly if in. in length, has, like paphia^ six rows of long, hairy spines, black in this species. All the rows are represented on 74 ARGYNNIS AGLAIA. the central segments, but there are fewer spines towards the two extremities, where, too, the caterpillar tapers somewhat. The two spines on the second segment are simple, short, and pointed over the head, which is black G 2 84 THE BOOK OF BRITISH BUTTERFLIES. and shining. The ground-colour of the caterpillar is a dark violet-grey, paler at the divisions between the seg- ments. There is a slender black dorsal line, bordered on each side with dull yellow, and the lateral surfaces are thickly marked with black. The spiracles are black and grey-edged. Below each is a yellowish-red blotch, followed by a thin yellowish line, while the ventral surface is dark brown. The chrysalis (Fig. 76), which is suspended from the under-surface of a leaf, has, like paphia^ the abdominal part very much curved, the segments of it being well denned and bearing on the dorsal surface two rows of points, calling to mind to some extent the rows of spines on the larva. The anterior part is black, marked a little with yellowish-brown, while the rest of the body is brown and brownish-yellow. The thorax is humped above and the wing-cases are prominent below; the spiracles are black, and the whole surface of the chrysalis has a shiny, polished appearance. On the upper surface (Fig. 73) of the imago the ground- colour is a rich sienna-brown. The nervures are black, and towards the base of the fore-wings are joined by several irregular black bars. Nearer the hind-margin, which is nearly straight (concave in paphia), is a row of seven black spots, the middle one being smaller than the rest. Outside these again is a row of semi-lunar black markings, followed by two thin black lines swelling out at the nervures. At the base of the hind-wings is a large, irregular dark patch (not so much developed in adippe), which patch is followed towards the hind-margin by a row of five spots, the central one being the smallest ; the rest of the markings resemble those of the fore-wings. The fringe is pale, but black at the nervures ; all the wings are slightly scalloped. On the under-surface (Fig. 74) the ARGYNNIS ADIPPE. 85 ground-colour is dull yellow, tinged with red on the basal part of the fore-wings, while the greater part of the hind- wings are rich metallic green, tinged with olive-green towards the centre. The markings of the fore-wings re- semble those of the upper surface, but are less distinct, and there are a few silver marks, especially an indistinct row of spots near the hind-margin. On the hind-wings there is a row of seven bright silver spots near the hind- margin, backed by green crescents, and in the green portion there are fourteen or fifteen bright silver spots. The dark lines on some of the nervures of the upper surface of the fore-wings of the male the point of distinction from the female are not well developed in this species. A. adippe, Linn. (High Brown Fritillary) (Figs. 77 to 80), like ag/aia, which it very closely resembles on the upper surface, is almost as large as the Silver-washed, but scarcely so fine-looking an insect. It flies almost or quite as strongly as the last-mentioned, but has a different appearance on the wing, owing to the darker ground-colour and markings. Besides favouring the flowers of the bramble with its attentions as is customary with most Fritillaries, it has a great liking for the flowers of the thistle, &c., a taste similar to that of some of its relatives, the Vanessas, and when sunning itself on a head of thistles or a spray of bramble-blossoms, its capture is easy, whereas it is a difficult matter to take it on the wing. In August the eggs are laid on the Dog Violet ( Viola canina\ the Sweet Violet (V. odorata\ and the Pansy ( V. tricolor]. In about fourteen days they hatch, and the larvae, after feeding for a time, retire like those of the rest of the genus to the roots of the food-plants, or to the dead leaves, and so on, that may usually be found lying round them. There they spend the winter, 86 THE BOOK OF BRITISH BUTTERFLIES. appearing again in the spring and being full-fed in June. The pupae may be found in that month and the next, while the imago is on the wing in July and early August. Adippe frequents woods and hill-sides in most parts of England and Wales, but is local, though often plentiful where it occurs at all. It does not, as some insects do, become commoner as we proceed southwards, but, as with the preceding butterfly, ag/aia, the spots where it is common are scattered here and there through the country Lincoln- shire, Westmoreland, and the New Forest being three amongst others. It is not a Scotch insect. The larva (Fig. 80) is about the same size as that of aglaia, and, like it, tapers towards the extremities. The spines, too, are similar in number and disposition, but in this case are yellowish-brown. The ground-colour is a rich, dark pinkish-brown, the pink showing especially on the lower surface. On the dorsal surface each segment is adorned with two distinct comma-shaped (*) black marks separated by a much lighter streak. The hairy head is a dull lightish brown, and so are the legs and claspers. The pupa (Fig. 79), which is similar in shape to that of the rest of the genus, has a very dark brownish tinge with golden marks. The upper surface of the imago (Fig. 77) so closely resembles that of aglaia in ground-colour, markings, shape, and margins, that at first sight no difference can be detected ; but a closer examination shows that the dark blotch at the base of the hind-wings of aglaia is replaced in adippe by less compact black markings, though the base of the wings is often very dark too. In the row of five black spots mentioned as occurring on the hind-wings of aglaia, the one nearest the costal margin and the middle one are small or wanting in ARGYNNIS ADIPPE. adippe, whereas the central one only is small in aglaia. On the under-surface (Fig. 78) the fore-wings very closely resemble those of aglaia ; but the markings at the tip 79 ARGYNNIS ADIPPE. are tinged with reddish-brown in this, whereas they are tinged with green in the other, and contain in adippe one or two indistinct silver marks, but the marginal row 88 THE BOOK OF BRITISH BUTTERFLIES. of silver spots is absent. The great point of distinction is found on the hind-wings. There is very little green at the base, and this is tinged with reddish-brown. Between the marginal row of seven silver spots (backed with reddish-brown instead of green) and the other silver markings is a row of rust-red spots with silver eyes, which row is entirely absent from aglaia. As in paphia, the male may be known from the female by its having black lines on some of the nervures of the upper surface of the fore-wings. A variety of adippe, which is, however, rarely seen, has yellowish spots instead of silver. It has been named cleodoxa, Ochsenheimer. A. paphia, Linn. (Silver-washed Fritillary) (Figs. 81 to 85), will doubtless be allowed by everyone to hold undisputed possession of the first place among the Fritillaries. This position it owes to its size, the bold outline of its wings, the rich sienna-brown upper surface with distinct black markings, and above all to the colouring of the under-surface of the hind-wings metallic green with traces of the markings of the upper surface, a shifting purplish tinge here and there, and ill-defined silver streaks blending with the rest to form a most harmonious whole. Paphia is a strong flyer, and not easily taken in a fair chase; but it has a liking for the flowers of the bramble, and the collector's best chance is to watch it down on a bush, and then, with a careful and judicious sweep of the net, to take it there. If a hurried, careless stroke is made, the insect, if secured at all, will scarce die unavenged ; for a rent in the net made by the bramble-hooks will often be the result of such a stroke. Quiet woodland glades are the haunt of this not uncommon species, and if specimens are wanted, there they must be sought. It seems to be present in most large woods in England and Wales, but is less common in Scotland. ARGYNNIS PAPHIA. 90 THE BOOK OF BRITISH BUTTERFLIES. The eggs are laid at the end of July or beginning of August on (or near) the Sweet-scented Violet ( Viola odorata\ and the Dog Violet (V. canind}\ the Raspberry has also been mentioned as a food-plant. The larvae hatch in a fortnight, so that they are out in August. They retire to the surface of the ground amongst the herbage in September, and appear again in the spring, being full-fed about the end of May or beginning of June, during which month the pupae may be found suspended from the stem of some low bush, often the bramble. The imago is out from June till August. The larva (Fig. 85) tapers considerably in both directions, but especially towards the head ; this is small and black, marked with brown, except on the top, which is much lighter. The segments of the body, which are clearly distinguished, are adorned each with a ring of spines. These spines form eight rows along the caterpillar, though only the middle segments are represented in all the eight, and the fourth on each side when present is very short, being in fact more of the nature of a tubercle. The second segment carries two spines, which are much longer than the rest, and point forward over the head. The spines are rust-coloured with black hairs and tips. The ground-colour of the larva is rich brown, having a somewhat smoky tinge on the ventral surface and claspers. The legs are black. There are two distinct yellowish dorsal lines ; on each segment are several subdorsal blackish streaks, and a large black spot in front of the dorsal pair of spines. The spiracles are black. The pupa (Fig. 84) is stout and very much angled ; there is a large hump on the keeled thorax. The anterior extremity is two-pointed, or two-eared as it is often called, and the back is very much curved. The abdominal segments and thorax are adorned with tubercles, which MELI1VEA. QI look as if they had taken the place of some of the spines of the larval stage. The colour is greyish, with darker markings ; and, as with several of its near relatives, the surface has in many places a golden lustre. The costal margin of the fore-wings is much arched, the hind-margin of all the wings is slightly scalloped, and that of the fore-wings rather concave. The fore-wings of the male (Fig. 81) are much less scalloped than those of the female (Fig. 83). The ground-colour is rich sienna in the male, duller in the female. In the male there is a broad, raised, black line along four of the nervures of the fore-wings. On all the wings the nervures are connected towards the base by black bars, and there are two rows of spots, parallel to the hind-margin, two spots occurring between each pair of nervures ; on the hind-wings these spots are almost round, and very regular. Each nervure bears near its extremity a diamond-shaped black spot. On the under-surface (Fig. 82) the fore- wings are pale yellowish-brown, with black spots, and a few greenish ones at the tip ; the hind-wings have been described above. There is a beautiful variety of the female named valezina^ Esper, in which the upper surface is dull brownish-green. In addition to the usual markings, which are made indistinct by the dark ground-colour, there are some whitish patches near the tip of the fore-wings. The New Forest is a good locality for this variety, but it is sometimes taken in Devon and elsewhere. Melitaea, Fabr. This genus contains three British species M. aurinia, M. a'nxta, M. athalia which may be characterised as having on the upper surface the usual orange-brown ground-colour, chequered with black, but as having below 92 THE BOOK OF BRITISH BUTTERFLIES. yellow or white spots, instead of silver ones. The antennae are knobbed, and the costal margin of the fore-wings is almost straight. The larvae have short, blunt spines, with black bristles. When hatched, they bind together with silken threads a few leaves of the food-plant, making a kind of tent, under whose protection they live and feed. This they continue to do, taking new and larger dwellings as they grow, till towards the end of summer, when they descend the food-plant and make down among the thicker herbage close to the ground a stronger dwelling-place, in which they pass the winter in companies, appearing again to finish feeding in early spring, when they separate and discard their customary shelter. The pupae, which are suspended by the anal extremity by means of tiny hooks fastened to a pad of silk usually on the food-plant, are stout, and without any anterior points or keels, either dorsal or lateral, in this respect differing considerably from the genus Argynnis. The sexes are similar. The genus Melitaa is well represented in the Northern Hemisphere, except in high latitudes, but does not extend to Africa or South America. M. aurinia, Rott., M. artemis, Fabr. (Greasy or Marsh Fritillary) (Figs. 86 to 89), obtains its first English name from the shiny, smeared, appearance of both surfaces of the wings, making the insect look very much as if it was affected with grease. The second English name has re- ference to the localities to which the butterfly is rather partial. It delights to sun itself on the many flowers to be found in damp meadows and marshy spots, where it may easily be caught, for even if it takes wing its flight is weak. The conspicuous larva is often "stung," and falls a victim to the larvae of a species of Microgaster (an ichneumon-fly), of which twenty or more may be feeding within it at once. MELI1VEA AURINIA. 93 In early June the eggs are laid on the lower leaves of the Devil's-bit Scabious (Scabiosa sucrisa) usually, but at times on the Field Scabious (Knautia arvensis)^ Narrow- leaved Plantain (Plantago lanceolatd), and Foxglove (Digitalis purpurea), while the larvae will feed in confine- ment on the Honeysuckle. The eggs are hatched in about a fortnight, and the larvae, when about half-grown, retire and hibernate during the winter. They are full-fed about the end of April or beginning of May. After spending about a fortnight as chrysalides, the perfect insects emerge during May, and remain on the wing that month and the next. This local butterfly is probably to be found in most counties in England and Wales, and in some places in Scotland ; but its presence is regulated by the supply of its commonest food-plant, the Devil's-bit Scabious, and the damp spots which it and its food-plant both affect. The larva (Fig. 86) is about lin. or i*in. long, and has the segments distinct. The colour is black, except on the ventral surface, which is very dark brown, the claspers are lighter, the legs are black, and so is the head, the latter being shiny and covered with black hairs. The body, which is covered with short hairs, is sprinkled with white dots, arranged roughly in three lines : one dorsal and two spiracular, the latter being the clearer. The short, hairy spines are as many as eleven on the middle segments, but less at the two extremities. The chrysalis (Fig. 87) is short and stout, with a broad head. The back is much curved, and the anal extremity bent forward as in illustration. The colour is white, changing to orange as the time for emergence approaches. The wing-cases, which are slightly produced in front, are marked with black, and there are black mark- ings on the leg and antennae cases, head, and dorsal 94 THE BOOK OF BRITISH BUTTERFLIES. surface. A few orange dots are also to be found with the black. On the upper surface of the imago (Fig. 88), starting from the outer margin, we get first the black margin, then a row of yellow semi-lunar spots ; next, a broad brownish- orange band, divided by the nervures, and each division on the hind-wings containing a black dot ; next follows a band of yellow spots, with broad black boundaries ; within this, on the fore-wings, are a few spaces, some yellow and some orange, while the rest of the hind-wings is chiefly black. On the under-surface (Fig. 89) the markings are very similar, but the black is either very much toned down or reduced to fine lines. M. cinxia, Linn. (Glanville Fritillary) (Figs. 90 to 93), is an extremely local butterfly in England, though plentiful on the -Continent. Its stronghold is in the Isle of Wight, and it is seldom taken elsewhere. Other localities that have been mentioned are the New Forest, Kent, Wilts, Cam- bridgeshire, Lincolnshire, Northants, Yorkshire, and Fife. It usually flies slowly, and may be easily caught. During May and June the eggs are laid in clusters on the Narrow-leaved Plantain (Plantago lanceolata] and possibly on some other plants, such as those mentioned for M. athalia. . The larvae, while still small, retire in companies for the winter into a retreat of leaves bound together with silk. They reappear in the spring, and are full-fed about the end of April. After about a fortnight, the insect leaves the chrysalis, which is attached to the food-plant or to some object near. The imago is on the wing during May and June. The larvae of cinxia and of the other butterflies of the genus Melitcea are very conspicuous, and we may wonder why they do not all fall victims to birds and other enemies to the caterpillar tribe. It is, however, the opinion of MELITVEA CINXIA. 95 many that hairy or spiny caterpillars are not usually eaten by birds ; but whether that is so or not, there is doubtless here again an instance of " protective resemblance." The caterpillar (and to a great extent the chrysalis too) re- sembles very closely indeed the young flower-heads of the plantain, when they begin to appear among the leaves, and on a cursory glance one would be very readily taken for the other. Ichneumons, however, sometimes find out the caterpillars and " sting " them, the fly this time, in some cases at least, being much larger than the one that attacks M. aurinia, a single grub only being nourished apparently by one cinxia caterpillar. The larva (Fig. 90) so closely resembles that of M. aurinia that it is difficult to distinguish between them ; the head, however, is red instead of black, and the white dots are arranged in a double row encircling the caterpillar at the divisions between the segments. The pupa (Fig. 91) is short and stout, with a broad head. It is nearly smooth, and, as with M. aurinia^ the back is very much curved, and the anal extremity points forwards. The head is almost black, with a few yellowish marks. The colour then shades off posteriorly through a blackish-bronze to yellowish. There are four orange dots on the head in the form of a square, and a few yellowish ones on the wing-cases. Besides these there is a dorsal line of orange dots, one on each segment, as well as two or three lateral lines of a similar colour, the one nearest the dorsal line being distinct, the others not. There are also some black dots on each segment. The rather distinct antennae-cases are marked with alternate black and white dots. On the upper surface the imago (Fig. 92) resembles very closely indeed that of the next butterfly, M. athalia. In both the ground-colour is rich orange-red, with a kind 96 THE BOOK OF BRITISH BUTTERFLIES. of gridiron-like chequering of black. Perhaps there is rather more black in athalia, but the point of distinction on the upper surface is the presence in cinxia of a line of black dots (absent in athalia) parallel to the hind-margin of the hind-wings. The under-surface (Fig. 93) less closely resembles that of athalia. The fore-wings are orange, with a yellow outer margin and tip. The hind-wings have first a line of yellow spaces along the outer margin, then a line of orange ones with black dots, next a line of yellow ones with black dots, followed by a line of orange spaces enclosing one yellow space, and the base of the wings is yellow, with black dots. There are besides several black dots not yet mentioned, especially on the fore-wings. The markings are distinct, for many of the spaces referred to are defined by clear black lines or nervures. This butterfly varies considerably in different specimens. M. athalia, Rott. (Heath Fritillary or Pearl-bordered Likeness Fritillary) (Figs. 94 to 97), gets its first common name from the kind of locality the imago frequents heaths and openings in woods. The second name is not a good one, as it leads to confusion with two species of Argynnis. M. athalia, though very local, is usually abundant where it occurs at all. Its chief home is in the south of England : it is rare in the north. It has been taken abundantly in parts of Cornwall, Devon, Sussex, Kent, and Stafford, and has occurred in Bucks, Essex, Gloucester, Suffolk, and Wiltshire. Like the last butterfly it varies considerably in its markings, and a good series will be required for the cabinet. The Heath Fritillary is later than the other two species of the genus. The eggs are laid in July, on several plants, among them being the Narrow-leaved Plantain (Plantago lanceolata), the Broad-leaved Plantain (P. major), Wood Sage (Teucriitm Scorodonia\ Germander 93 MELIT^A AURINIA (86 TO 89), M. CINXIA (90 TO 93), AND M. ATHALIA (94 TO 97). 98 THE BOOK OF BRITISH BUTTERFLIES. Speedwell (Veronica Chamcedrys), Cowwheat (Melampyrnm pratense], Foxglove (Digitalis purpurea\ and perhaps Heath. The larvae emerge in about a fortnight, and after feeding for a short time hibernate till the end of April. They are full-fed about the end of May or beginning of June, and after remaining in the chrysalis state about three weeks the butterflies emerge, and continue on the wing till July. The larva (Fig. 94) is about ijin. in length. The dorsal surface is black, and the ventral pinkish-grey ; both surfaces are thickly covered with white dots, forming transverse rows on the divisions between the segments, which are distinct. The head is black, with white points, the legs are black, and the claspers grey. The spines, which are yellowish-brown, not black as in the other two species of the genus, are eleven in number on the central segments, but less at the two extremities. In shape the pupa (Fig. 95) resembles that of aurinia broad head, curved back, wing-cases slightly produced ventrally, and anal extremity pointing forwards. The colour is almost white, with black and orange markings ; the leg-cases have black markings ; the thorax has two black marks edged with orange. The dorsal surface of the abdomen is banded alternately with black and orange. A typical athalia very closely resembles aurinia on the upper surface (Fig. 96), but has no row of black dots on the hind-wings. Below (Fig. 97) the resemblance is close also ; but the markings are less clearly outlined, and in the hind-wings the compartments contain no black dots. The middle lightest band on the hind-wings has a slight silver tinge; the rest of the markings on both wings are yellow and orange, those on the hind-wings being arranged roughly in bands. VANESSA. 99 Vanessa, Ochsenhetmer. The British Vanessas form a well-defined group of butterflies, possessing, amongst other marked similarities, a great brilliancy and richness of colouring, such as we usually associate with the denizens of countries much more favoured with sunny weather than our own. They are seven in number, and are known as the Comma, V. C-album ; Large Tortoiseshell, V. polychloros ; Small Tortoiseshell, V. urticce, ; Peacock, V. io ; Camberwell Beauty, Vanessa antiopa ; Red Admiral, V. atalanta ; Painted Lady, V. cardui. For richness, yet simplicity, of colouring the palm must no doubt be given to the Camberwell Beauty, with its wings of deep chocolate edged with cream; the striking contrast of the black, scarlet, and white of the Red Admiral giving that insect a good second place ; though perhaps many may prefer to both the more gorgeous Peacock, well-named after the bird whose eye-spots it has so closely simulated. The other four, though coming some distance behind, are nevertheless sufficiently bril- liant with their rich, russet ground-colour relieved by markings of black, white, and blue. The outlines of all, except the Painted Lady and the Red Admiral, are in- dented, and this indentation is carried to the extreme in the case of the Comma, as a reference to Fig. 99 will shew. There is very little difference between the male and female in any of the species of this genus. The Camberwell Beauty is unfortunately scarce, though it is found occasionally but, as a rule, singly throughout England. The Comma and the Large Tortoiseshell are none too often found. The Red Admiral, Peacock, and Small Tortoiseshell, are common enough everywhere, and the other the Painted Lady is fairly so. All are strong H 2 100 THE BOOK OF BRITISH BUTTERFLIES. flyers and bold insects, haunting the gardens and even streets of our towns, as well as sylvan glades and flowery hillsides, where butterflies are usually to be found. When intent on sipping the nectar of flowers or it may be, in the case of antiopa^ the juices of over-ripe fruit they may often be taken with the hand. The Peacock and indeed all the Vanessas delight to sun themselves upon the heads of thistles and other similar plants, and may there be watched alternately opening and closing their wings, one moment displaying all the colours of the rainbow, and the next, may be, a deep, funereal black. Then is the time with a down- ward sweep of the net to secure the prize; but, should the attempt fail, one would need the speed of the wind to get another stroke, unless, as . is very likely, the insect should wantonly return to the same neighbourhood. A point worthy of note in connection with the contrast between the brilliant colouring of the upper surface and the sombre tints underneath is the means afforded thereby for the insect's protection. Though, for instance, the Large Tortoiseshell would be readily enough seen when displaying its upper surface on the bark of an elm-tree, let it once close its wings and it would need a practised eye indeed to detect its presence. The caterpillars vary somewhat in colour and in the arrangement of the dots, or lines, or both, with which they are marked, but they are all alike in being adorned with spines. The caterpillar of the Large Tortoise- shell feeds on the elm for which reason the perfect insect is sometimes called the Elm Butterfly and also on the willow, which is the food-plant of the larva of the Camberwell Beauty/ That of the Comma feeds on various plants, the hop, red currant, elm, willow, and nettle being amongst them. The Painted Lady larva VANESSA. 1 01 affects thistles and the nettle ; while the other three keep almost entirely to the latter. All the caterpillars are some- what conspicuous, and therefore readily found. They can easily be reared, and imagines in perfect plumage may be thus secured. But should several of the caterpillars be seen with one intent hurriedly moving away from the food-plants, let these be taken, for they are just on the point of turning into chrysalides, and the perfect insect may from them be obtained without the trouble of rearing the caterpillars. The chrysalides of all the Vanessas are similar in form, being very angular, and adorned with metallic, usually golden, spots, whence the term chrysalis, derived from a Greek word meaning "gold," was bestowed upon them, and has been since extended to the pupae of all butter- flies. The chrysalides of this genus are suspended by their anal extremities, without any covering whatever to protect them from the weather; indeed, such a covering would be quite unnecessary, as the pupal state is passed in the height of summer. The perfect insects are on the wing during the later months of summer and the early autumn. As the cold weather approaches, they retire to some sheltered spot, and there hibernate during the winter, appearing again towards the end of spring, when the eggs are laid which are to produce the summer's brood. Often one a Small Tortoiseshell especially that has taken refuge in the roof of some large building, is roused from its winter's sleep, and flutters about quite out of place, when the room has become unusually warm, may be on the occasion of some Christmas festivity. On account of their ability to live through the winter, we should look with peculiar favour on the Vanessas and a few other butterflies that hibernate like them, for. 102 THE BOOK OF BRITISH BUTTERFLIES. they are the first to tell us of the summer that is coming, and the last to remind us of that which has passed. V. C-album, Linn. (Comma) (Figs. 98 to 101), on account of the deep indentations and therefore jagged outline of its wings, might at first sight be easily mistaken for a dilapidated specimen of the Large or Small Tortoise- shell, but it will not be long before their more sought after relative is recognised and, with good luck, cap- tured. V. C-album should be looked for in open glades of woods or along country hedgerows, especially where brambles grow, for it has a great partiality for these plants. Powerful flight would hardly be expected as an accom- paniment of deeply-indented wings, but such is one of the features of this butterfly, which at times may be seen sailing aloft round the tops of the trees, just as is often the case with other species of its genus. Though at one time widely distributed over England and Wales and in many places common, V. C-album seems now to be gradually becoming scarcer and scarcer. The districts round which it chiefly centres appear to be North Wales and the counties on each side of the English and Welsh borders. Outside these localities collectors, if they find it at all, will do well not to expect to meet with it in numbers. It is uncertain whether C-album is single- or double- brooded. The winter is passed in the perfect state, and the butterflies reappear about May. They are seen from that date onwards, but the chief flight occurs in Septem- ber and October. The larvae, which feed principally on the Hop (Humulus Lupulus), the common Nettle (Urtica dioica), and the Red Currant (Ribes rubruni), may be found in July and August, and perhaps in the spring, while the pupae occur in September, if not before also. VANESSA C-ALBUM. 10 3 The full-grown larva (Fig. 101), the "silver bug" as it used to be called in Sussex when it was common in the hop-gardens there, is about iiin. in length, and VANESSA C-ALBUM. is armed with short bristle-bearing spines. Ot these there are four on the third and fourth segments, seven on segments five to twelve, and four on the 104 THE BOOK OF BRITISH BUTTERFLIES. thirteenth. The coloration, which is very elaborate, is thus described by J. Hellins : " The ground-colour is black dotted with red, the head black ; the second segment has a fine red dorsal line ; segments three to six have each a transverse red patch on the back, and the subdivisions lined in red, and their dorsal and subdorsal spines red ; then comes on segments seven to eleven a broad dorsal band of white, with a dusky blackish dorsal line, and some short black streaks ; here the dorsal and subdorsal spines are white ; on twelve this white band ends in a wedge shape ; thirteen is black, but its spines are white ; the lateral row of spines all red, the subspiracular row pink ; the spiracular region is marked with an upper and lower waved red line, with a red slanting streak behind each spiracle connecting the two; the spiracles are con- spicuous, being black ringed with white ; the belly blackish with some red-brown marks ; legs blackish." The head bears two short horns. The pupa (Fig. 100) is about fin. long, and has two ears to the head. There is a prominent projection on the thorax, succeeded by a hollow, after which the contour follows a convex arch to the anal extremity. Each side has a subdorsal row of nine small points with reddish tips, and the wing-cases are pro- minent. The colour is purplish-brown, with a greyish line down the back of the abdomen, which also bears six V-shaped marks. There are six silver spots behind the thorax and a brown stripe along the spiracles ; the under- surface of the abdomen bears some dark marks. The costal margin of the fore-wings of the imago (Fig. 99) is nearly straight, and the hind-margin of all the wings very jagged. The inner margin of the fore-wings has a deep hollow. The colour of the upper surface is brownish-orange, with a broad band of redder brown VANESSA POLYCHLOROS. 105 along the hind-margin of the wings. The fore-wings have seven dark brown spots ; the hind-wings have three brown spots near the base, and an extra band of brown. The under-surface (Fig. 98), which is mottled with brown, has on each hind-wing a white mark resembling a comma or C, which gives the insect its name. Some specimens have a pale ochreous ground-colour to the under-surface, while others have it dark grey. The former may belong to the suspected early brood. V. polychloros, Linn. (Large Tortoiseshell, or Elm Butterfly) (Figs. 102 to 105), is one of our larger and finer butterflies, not so gorgeous indeed as some, but suffi- ciently striking and handsome nevertheless. It is widely but very sparingly distributed through England and Wales, and has been taken in Scotland near Melrose, in Kincar- dineshire, in Aberdeenshire, and in Argyll, at least. It would be of little use to give localities in England, but it may be noted that the Large Tortoiseshell is considered to occur in the East and in the Midlands more abundantly than elsewhere. It must, however, in any case be looked upon as one of our scarcer butterflies. The eggs are laid in May on a considerable number of different trees, the Elm (Ulmus) of one species or other being that usually selected. Other food-plants mentioned by various authorities are Sallow, Willow, and more than one species of osier, all belonging to the genus Salix, the Aspen (Populns tremuld}^ the Cherry (Prunus cerasui), and two Pears, the White Beam-tree (Pyrus Aria) and the Common Pear (Pyrus communis). The larvae are full-fed soon after the middle of June and the imagines are out about mid-July. They retire early in the autumn to hibernate for the winter, and reappear about May or a little earlier. io6 THE BOOK OF BRITISH BUTTERFLIES. The larva (Fig. 103), which is about 2 in. in length, bears short, branched spines, yellowish-brown in colour, VANESSA POLYCHLOROS. with black points. The third and fourth segments possess four, the fifth to the twelfth seven, and the thirteenth four. VANESSA URTICLE. 1 07 The ground-colour is black ; the dorsal surface is thickly sprinkled with brown, and down the centre of it is a fine black streak. The sides are very thickly sprinkled with brown and so is the ventral surface, there being on these parts, indeed, more brown than black. The head and legs are black, and the spiracles are of the same colour surrounded with brown ; the claspers are brown, with dark markings. The larva is slightly hairy. The pupa (Fig. 102), about lin. in length, has the head eared and a large projection on the thorax which is laterally keeled. This is followed by a deep hollow bearing six gilt spots, and then by a well-arched abdomen, each side of which has a subdorsal row of sharp dark- coloured points. The colour is a warm brown, lighter on the abdomen, which has on each side a row of tiny black spots on each segment. The anal spike is outlined in black and white. The imago (Fig. 105) has the costal margin of the fore-wings arched and the hind-rnargin of all the wings rather deeply indented. This insect much resembles the small one described below ; the ground-colour, however, is duller. The spot near the tip of the fore-wings is cream instead of white, and there is an extra black spot near the anal angle of the fore-wings. The marginal blue spots, moreover, are found chiefly on the hind- wings. The under-surface (Fig. 104) very closely resembles that of V. urtic