a “(OM ; a NANG XS WW? aS Za Ss THE GENERA AND SPECIES BRITISH BUTTERY LISS. DESCRIBED AND ARRANGED ACCORDING TO THE SYSTEM NOW ADOPTED IN THE BRITISH MUSEUM. IBY: H NOEL HUMPHREYS, yA AUTHOR OF “‘ THE GENERA OF BRITISH MOTHS,” “INSECT CHANGES,” ‘THE BUTTERFLY VIVARIUM,” ETC. ILLUSTRATED BY PLATES, IN WHICH ALL THE SPECIES AND VARIETIES ARE REPRESENTED, ACCOMPANIED BY THEIR RESPECTIVE CATERPILLARS, AND THE PLANTS ON WHICH THEY FEED. LONDON: Verde Atty MEAN. 463° OX FORD STREET, According b Horn " Sche VN Ge - 54 BILLING, PRINTER, GUILDFORD. ING See HX | le \\ 3 > - 4 a 154 } ¥ 4 Vion L ays” ‘3 j / / PREFACE, Wuen I first became a collector of Butterflies, the pursuit was much less common than now ; and few works upon the subject, in a popular form, existed ; so that as my cabinet increased I began to find the want of some instructive manual, in which the distinctive characters of the different kinds of British Butterflies were not only described but also exhibited, by means of coloured representations of all the species, each of its natural size, and accompanied by their respective larve. Finding that no such work then existed, I determined to produce one myself ; and, obtaining the aid of one of our most eminent entomologists, J. O. Westwood, Esq., I pub- lished, with his valuable assistance, a volume which I entitled “ British Butterflies and their Transformations.” The work was well received, and its sale has exhausted several editions. It undoubtedly did its part, however small, in extending the general taste for entomological studies ; but as the circle of students became wider, it appeared to me that a work of less bulk, and of more popular character, might be serviceable. I therefore deemed this a fitting time for remodelling my subject, more especially as many changes have taken place in the mode of classifying our native Lepidoptera. With this view I have undertaken the present work, which, while it will be far less voluminous than the former one, in as far as the text is concerned, will yet contain a greater number of coloured representations of our British Butterflies, of which no single species, or even striking variety, will be omitted, and all the new species and varieties of recent discovery will be introduced. Without sacrificing anything, as I hope, of scientific accuracy, I have sought to render the present work, and its subject, more attractive by exhibiting the insects in picturesque groups, flitting among the foliage and flowers of their native haunts, or hovering over plants upon which the larvee may be seen feeding. I imagined that by thus presenting our indigenous Buttertlies to the notice of the student under a natural aspect, instead of displaying them in the form of dried specimens, as stiffly pinned out in a cabinet, my volume might possess the advantage (as an introductory work) of attracting many towards the study of this branch of Natural History who might be repelled by a more dry and technical arrangement. I mean such as generally charac- terises entomological works which have any pretension to a regular and comprehensive character ; or such as embraces (as in the present instance) the complete treatment of any special section of the science. * tse tee aol THE INSECTS ON THE TITLE PAGE. Not having found space to give many representations of mere “ varieties” in the preceding Plates of British Butterflies, I have introduced in the Additional Title Page three of the most remarkable that occur among our native species. The large insect in the lower part of the page is a rich and very beautiful variety of the common V. Urticw, which differs in several particulars from any variety I have previously met with (see page 27). It is in the possession of W. P. Russell, Esq., of Monks Eleigh, Suffolk, and was obtained during the season of 1859. From the deep cream-coloured bordering of the anterior wings, and the disposition of the dark brown-black to fill up nearly all the remainder of the fore-wings, it appears probable that it may be a hybrid between /. Urticw and V. Antiopa. Above the variety of V. Urticw are two of the remarkable varieties of C. Phileas (the Small Meadow Copper), which occur in certain localities not unfrequently. In the lower of the two specimens, all the usually rich copper-colour is replaced by a milky white ; while in the upper one it is the black that has disappeared, leaving white in its place. (See page 46). IN CRODUCTION: —_—~——- ALL the tribes of insects necessarily excite our wonder and admiration, either from the striking metamorphoses which they undergo, or by their curious structure, or the intricacy of their form, or splendour of colour ; but none arrest the attention of the tyro so soon as the beautiful and distinct class, known as Butterflies or Moths. The large size of the exquisitely constructed wings of this tribe of insects—so great in proportion to their generally slender bodies—and the exquisite traceries, often in the richest hues, with which those wings are deco- rated, render these insects at once conspicuous to the most inattentive observer. This may be said more truly of the Butterfly than the Moth family, inasmuch as the wings of Butterflies are generally much larger and more splendidly coloured than those of Moths ; and also because Butterflies fly by day, disporting in the bright sunshine where they cannot fail to attract observation, while the flight of Moths is generally nocturnal, and consequently remains unobserved except by the experienced student. To pursue the detail of characteristics which distinguish Butterflies from Moths, I may call attention to the exquisite variety of colouring with which the under surfaces of their wings are decorated, often of totally different character to the markings of the upper side. In the class known as the Coppers, for instance, the upper surface of the wings is of a bright metallic scarlet, sometimes without spot or mark, while the under side is of a soft pearly gray; pro- fusely dotted over with eyelike circlets of white surrounding a black spot or pupil. In Moths, on the other hand, the under-side of the wings generally presents but a pale reflex of the markings of the upper surface, and in no case are they of remarkable beauty as with many kinds of Butterflies. Another distinction between these two closely related families of insects is the different markings of the wings, which occur in the two sexes; these are so distinct, and sometimes in both cases so beautiful, as to have led even the great Linnzus himself, in the comparative infancy of the science of Entomology, to mistake the male and female of the same kind for distinct species. As examples of this disparity I may cite the little blue Butterfly, known as the “Clifden Blue,” in which the wings of the male are of a lovely azure, while those of the female are of deep brown. Then there is the common white Butterfly of our gardens, known as the “ Garden White,” which in the male sex has the beautiful creamy white of the wings perfectly immaculate, except at the dark tips, while in the wings of the female there are two large and very conspicuous black spots near the centre. In Moths, on the contrary, scarcely any distinction exists, in the markings of the wings of the respective sexes, though other distinctions still more singular distinguish them in that section of the family, but which do not call for detail in this place. vl INTRODUCTION, A somewhat remarkable distinction between Butterflies and Moths is that exhibited respectively by these groups of insects when in repose ; the Butterfly sitting with its wings raised face to face over its back, while the Moth allows its wings to fall on each side towards the substance on which it is resting, and in this position they remain with the upper sides in full view, which, from the internal edges, slope outwards with about the inclination of an ordinary roof. Still another distinction, and one which has served as the basis of the scientific line of separation, is the form of the horns, or antenns, which in the Butterflies are invariably furnished with a small club-like appendage at the extremity, while in Moths the antennz are always more or less pointed at the end. In the preparatory and successive states of egg, caterpillar, and chrysalis, common to both Moths and Butterflies, the distinction is only strikingly remarkable in one stage, that of the chrysalis. The general aspect of the egg and caterpillar being in many cases so similar, that unless from positive knowledge of the species, it would be difficult to decide at a glance, whether they were the eggs and caterpillars of Moths or Butterflies ; but in the chrysalis stage the angular forms and light colouring of the Chrysalides of Butterflies at once distinguish them from those of the Moths, the conical forms of which are generally smooth, and almost invariably dark-coloured. A characteristic to be especially noted in these interesting insects, and perhaps the one most intimately connected with their peculiar beauty, is common to both Moths and Buttertlies, and distinguishes them from nearly all other insects. I allude to the beautiful feather-like scales with which their wings are invariably clothed on the upper surface, and most frequently on the under surface also. This character, which the two families possess in common, has furnished the scientific title (to be described hereafter) of the ‘order’ to which they are made to belong. It is indeed an amply sufficient distinction, being a leading and prevailing characteristic, scarcely ever found in any other class of insects. There are, however, some remarkable excep- tions ; as for instance, the perfect insect of the Caddis-worm, a creature very closely resembling a moth, which has the wings closely clothed with a precisely similar kind of scales ; and some other examples might be cited, though not in sufficient number to invalidate these characteristic scales as an all-sufficient means of distinguishing the insect ‘ order’ now under description. The wings of Butterflies and Moths may then, for all the purposes of scientific classification, be said to be, exclusively, furnished with a clothing of feather-like scales, to which they are in- debted for all their beautiful markings ; for if these coloured scales be carefully brushed away, the naked wings will present, only upon a much larger scale, the general appearance of those of a common housefly, consisting, as they do, of an excessively thin and nearly perfectly transparent tissue, strengthened by a branching framework of nervures, or veins, as they are more commonly called, which maintains the almost film-like substance distended in an even plane, thus ensuring the form and also the strength necessary to the wings during their exertion in the action of flight. In order to understand the nature of the entire existence of a Butterfly, it will be necessary to consider its aspect under the successive forms or metamorphoses by means of which its progress to completeness is effected. The egg, which is laid by the female Butterfly in some secure situation, in which the infant insect when hatched is sure to find abundance of food, is ordinarily of about the dimension— to use a trite comparison—of a pin’s head, of average size ; and to the naked eye it presents a somewhat similar appearance,—but placed under a microscope, beneath the power of which so many of the mysteries of nature have heen unfolded, it assumes a peculiar and distinctive form not found in any other class of eggs. The eggs of Butterflies and Moths are seldom or never of the usual oval or egg-form ; and instead of being smooth, like the eggs of birds, they are INTRODUCTION. vil intricately decorated with delicate raised patterns and devices, sometimes extending over the entire surface. These patterns are of almost endless variety in different species. Those of the delicate little moth Geometra Crategata are covered with regular geometric network, resembling a shallow honeycomb. The eggs of one of the brown Meadow Butterflies are nearly spherical, but flattened at the base, and ornamented with rows of minute raised knobs disposed like the seg- mental marks in a peeled orange, only closer together. Those of another, of the ‘ Meadow are enriched with longitudinal ribs, connected in the lower portion by delicate hori- zontal marks, which at the top have the appearance of a small cap of scales. Those of the com- mon Garden White Butterfly have fifteen small longitudinal ridges, converging to the centre of the smaller extremity, the spaces between being ornamentally subdivided crosswise by a series of regular grooves or channels. It may be noticed that there is no caleareous substance contained in the shells of the eggs of insects analogous to that which forms the basis of the egg-shells of birds, The eggs of Butterflies and Moths vary considerably in number, but are always abundant— the Moth of the Silkworm laying about 500, and the Goat-Moth above 1000. Those of Butter- flies vary in similar proportions. As an instance of the beautiful symmetry with which the eggs H] Brown’s,’ of insects of this class are placed by the parent, in rows, close together, those of the common White Butterfly may be cited. Patches of them may often be observed upon cabbage leaves, when they look like small pieces of evenly woven lace, each opening being filled by a semi- transparent globule, resembling a little pearl. The eggs of other kinds are disposed in many different ways, some assuming the appearance of minute bracelets of beads, round the branches to which they are attached. The mode of exit of the young larva, or Caterpillar of the Moth or Butterfly, from the shell is very various in different kinds. In general the little creature gnaws its way out at the part nearest the head, much as a chicken at the proper time pecks at the shell till it forces its way out. The gnawing process often costs the embryo Caterpillar many hours of labour, especially when the shell is thick, as in the eggs of some species, which being laid in the autumn, are destined to resist the trials of a winter, and not be hatched till the following spring, In some cases the shell is furnished with a kind of lid, which is lifted by a very complicated pulley apparatus difficult to describe, but which the insect thoroughly understands—never making a mistake and pulling the wrong string. Many very singular peculiarities might be enumerated concerning the mode of exit of the young Caterpillar, but I must proceed at once to describe the next stage of his career, after his escape from his little quaintly sculptured prison. The Caterpillar or larva of a Butterfly or Moth differs from the larva of most other kinds of insects, Inasmuch as it almost always feeds on the leaves of plants,* and is frequently gaily clothed in a skin of velvety texture of the richest colours, or with a mantle of silken fur of many hues, which makes it in its larva state nearly as attractive in general appearance (to those who have no prejudice against the wormlike form) as the perfect Butterfly itself. The larvae of most other insects, on the contrary, are either naked and repulsive-looking grubs, feeding under- ground, or of still more unprepossessing forms, such as those, for instance, that pass their larva state in water. The caterpillars or larve of Butterflies, to the description of which I must confine myself, should be described here in some detail. They are most commonly furnished with six positive legs, which represent those of the future Butterfly, and eight pro-legs, as they have been termed, appendages which merely serve to balance and secure the central and posterior portion of the body of the Caterpillar while feeding, and in holding on to the under side of leaves while the true legs are otherwise employed, perhaps in drawing the edge or some other portion of the leaf towards the mouth. These pro-legs entirely disappear after the Caterpillar stage, no trace of them remaining in the perfect insect. They are generally disposed as follows :—after the three * With the exception of a few root-feeders. vill INTRODUCTION. segments next the head, which are each furnished with a pair of true legs, there are two seg- ments without legs, the next four being each furnished with a pair of the above-named pro-legs ; then follow two segments without legs, succeeded by the last segment, to which is attached a final pair of pro-legs, frequently somewhat different in character to the other four pairs. This distribution is, however, not universal among the Caterpillars of Moths and Butterflies, though nearly so among the latter. The larve of some Moths, those called the Loopers, for instance, have the pro-legs differently disposed, and, among Butterflies, the onisciform Cater- pillars of some kinds must be mentioned, which, while they have the gaily coloured skin and markings of Caterpillars, have nearly the form of the Woodlouse, to which the term enisciform refers. The general appearance of Caterpillars is greatly varied by the nature of the skin, and the clothing or other appendages with which it is furnished. Some are nearly smooth and glossy, others have the skin of velvety texture, others are covered with small tubercles, surmounted by a black or coloured point, sometimes naked, but from which emerges frequently a slender fila- ment, or a tuft, more or less spread, of shining hairs ; others are entirely covered with a thick growth of richly coloured silky fur, or exhibit it arranged in a row of dense tufts, which appears as though cut off square at the top. But nearly all Caterpillars that are more or less clothed with hair are those of Moths, the Caterpillars of Butterflies (I am only speaking of British species) being more generally smooth, except when furnished with curious spines, such as those which distinguish the larva of the Peacock Butterfly and some others, to be spoken of in their proper places. The head of the Caterpillar is the only firm or horny part, being necessarily so on account of furnishing the leverage for the powerful jaws or mandibles, by means of which the toughest foliage is cut through and masticated. The mouth, in the larva, or caterpillar state of insects, is very similar to that of the perfect insect, with the remarkable exception of the larvee of Butter- flies and Moths. In the larvee of these the mouth is furnished, as before mentioned, with strong mandibles or jaws for the mastication of solid food, but in the perfect Butterfly nothing of the kind appears, the mandibles being replaced by the singular proboscis or trunk, the slender tube of which forms the only means by which the perfect Butterfly takes the little food he requires, which consists only of the delicate juices lying deep in the nectaries of flowers. Such is the contrast between the voracity of the Caterpillar, and the delicate appetite it exhibits in its perfected form. The eyes of Caterpillars are generally very minute, often only perceptible by the use of a microscope, and they are not always situate in or near the head. In the Caterpillars of Butter- flies they are generally six in number. Their distribution is various, but they are most frequently arranged in a circle. They are nothing like the exquisite facetted eyes of the perfect insect, but are merely simple globules, and disappear with the skin of the Caterpillar, like the pro-legs, leaving no trace in the perfect insect. Antenne or horns are slightly indicated in nearly all Caterpillars, in a minute rudimental state, but are often only visible by the aid of a powerful microscope. The breathing apparatus of Caterpillars consists in a series of small apertures, termed spi- racles, which are generally situated on each side of the body in a line just above the legs and pro-legs, and never occur in the head. These breathing apertures are generally surrounded by a distinctly marked iris of some bright colour, and are thus rendered tolerably conspicuous, though often very small. The means of defence of Caterpillars against their several enemies is exceedingly various, but want of space prevents me from enumerating them here. I may, however, state that some have the power of spinning a web, by means of which they allow themselves to drop from a branch, and remain suspended in some less exposed place, till the danger is past. Some drop to the INTRODUCTION. 1x ground, while others—the Caterpillar of the Great Swallow-tail Butterfly for instance—is fur- nished with a fork-like appendage near the head, from which it can emit at pleasure a foetid odour, which has doubtless the virtue of proving very disagreeable to a certain class of enemies. The enemies of Caterpillars are not only many tribes of birds, of which they form the chief summer food, but also a class of insects, the Ichneumon tribe, who deposit their eggs beneath the skin of the Caterpillar, by means of a sharp instrument or ovipositor with which they are furnished for that purpose. The eggs of the Ichneumon are hatched by the heat of the Cater- pillar’s body, and the young larvee of the Ichneumon feed upon the fatty substances within the devoted Caterpillar’s body, taking care to avoid a vital part. When these parasitic larvee arrive at their full growth, they form their cocoons, and undergo their change to little Chrysalides within the body of their victim, which, under these circumstances, generally perishes about that period. The growth of the Caterpillars of Butterflies is very rapid, and they cast their skin several times before arriving at their full growth, which in some instances, as in that of the common Butterfly known as the Silver-washed Fritillary, is in fourteen days. Caterpillars are of no sex, though, as in the case of the eggs of birds, a certain portion, no doubt, are so pre-organised as to become males in the perfect state, and others females. Tt was not till so recently as the end of the seventeenth century that the true nature of the progress from the larva to the perfect insect was known. At that period the invention of the microscope, combined with other causes, led to those scientific investigations which have been the means of unravelling the mystery of what seemed positive metamorphoses, but which now only appear successive steps of regular development. Swammerdam, among the foremost of a phalanx of indefatigable investigators, discovered, beneath the skin of the Caterpillar, all the embryo forms of the perfect insect, which become more and more palpable as the Caterpillar ap- proaches its full growth. In the course of these minute dissections he discovered even the future wings, spirally folded in a singular and beautiful manner, and also the long antenne and pro- boscis of the Butterfly, which were closely packed against the inner front of the head. The eventual legs, though so different in form, were also found, encased within the six pectoral legs of the Caterpillar. The skin of the Caterpillar is therefore little more than a second egg shell, and the Caterpillar, a creature become a walking egg, as it were, after having been within one that was motionless. The strictly external members of the Caterpillar may therefore be considered in the light of a kind of disguise, and Linnzus, taking this view of the subject, gave the name of larva, a Latin word meaning a imask, to this stage of the development of insect life. It is indeed a very happily selected and characteristic term, by means of which the stage of insect development, which follows that of the egg, is now universally expressed. The English term “ Caterpillar” is not perhaps so ingenious and characteristic as the one invented as a scientific definition by Linneus, but its origin is yet worth describing. In the earlier stages of the English language, cafes, or cafe, was a common term for provisions or deli- cacies of any kind, and was applied in that sense to garden herbs, or culinary vegetables : if to this we add the old Anglo-Norman verb piller, Anglicised to pill,* we obtain for the larva of the Butterfly the highly descriptive title of cate-piller, euphonised Caterpillar, that is, plant pillager, or destroyer. J The chrysalis is not formed till the larva has attained its full growth. At this period the Caterpillar, instinctively aware of the coming change, ceases to feed, quits the scene of its devas- tations, and seeks some spot of safety in which it may undergo its transformation, and remain securely in its semi-dormant state till the proper time for the final change, when the perfected insect is to issue from the shell of the chrysalis in all the completeness of its winged and final * From which we have still—pillage, pilfer, &c. P- INTRODUCTION. state. Some Caterpillars secure themselves to a branch or wall by means of a slender web which they loop across their bodies to prevent them from falling, as they sink into the dormant state which immediately precedes their change to the chrysalis. Others suspend themselves by the tail to some convenient object by means of a knot of a similar kind of web. These are the most usual methods adopted by the Caterpillars of Butterflies, but those of Moths often weave for themselves a perfect enclosure by means of their silken web, which is called a cocoon, while others burrow in the ground, and construct a protective cocoon of earth, often so slight, however, that when the chrysalis is accidentally dug up by the gardener, the fragile cocoon falls to pieces, leaving the naked chrysalis exposed. After the larva of a Butterfly has suspended itself for change, the body gradually shortens and thickens, and in the course of a certain number of hours or days the soft skin of the Cater- pillar shrivels, bursts, falls off, and discloses the horny case of the chrysalis, which has been so rapidly formed within. The chrysalides of Butterflies are, as before stated, of much more angular form than those of Moths, having, nearly all of them, curious little spine-like points along their various ridges ; these, however, do not entirely conceal the form of the insect within the shell ; for in almost all cases the forms of the still small wings may be observed in the space traced out by linear mark- ings on each side. Underneath, starting from the head, the form of the antennie or horns may be traced ; as may also the situation of the eyes. The articulations, or joints of the abdomen, are plainly shown, as they agree with the corresponding joints of the shell in which they are en- closed, and it is this portion of the chrysalis alone that is endowed with any power of motion. The colour of the chrysalides of Butterflies varies from dull brown or green, to gray, and occasionally to more decided and brighter colours, often sprinkled more or less with black specks. Their most singular peculiarity, however, consists in metallic patches, resembling gold, which some of them exhibit. This effect, which led to some curious aberrations among the elder alchy- mists concerning the transmutations of metals, is now well known to be produced in the following manner. Reaumur satisfactorily explained that this golden appearance is caused by the exist- ence of a layer of fluid between the transparent outer skin and the more solid part of the shell of the chrysalis, which is bright yellow, and which in certain lights produces the metallic effect. This may be easily proved, by moving about a fresh chrysalis of the Tortoiseshell Nettle Butterfly, when it will be found that the seeming specks of gold change their places with the fluid when the chrysalis is moved about in various directions. After a certain time this fluid dries, and the “ gold” disappears. The term, Chrysalis, is derived from this metallic appearance, which some of them exhibit ; being formed of the Greek word Arysallis (zgbouAAuc), golden, or krysos (gold). The term Aurelia, likewise, by which this stage of insect development is also known, bears a similar import, from the Latin words awrwn (gold), or aurea (golden). This last was a term in more common use than chrysalis among our early English collectors, who were thence termed Aurelians. The time that the Butterfly remains in the chrysalis state varies in different species. But it may be stated that the chrysalides of the early broods of Caterpillars generally remain in the chrysalis state from fourteen to twenty days, while the late broods, even of the same kinds, generally continue in the chrysalis throughout the winter, and the perfected insect does not emerge till the following spring or summer. When the time is arrived for the insect to escape from the horny husk or shell, the time of the coming change may be recognised in the chrysalides of Butterflies by the gradual darkening of the shell and its increasing transparency, by means of which the rich colouring of the wings within may often be perceived, and the species of Butterfly about to emerge easily distinguished. The first symptom of the positive breaking out of prison is shown by the splitting up the back of the shell of the chrysalis, caused by the muscular efforts of the insect within. The escape is INTRODUCTION. xi then rapidly effected, but the wings are as soft as wet paper, and not larger than the indications of their outline upon the shell. They attain their full size, however, very rapidly, often within an hour, and sometimes in half that time, while in other cases a whole day is required. As the wings thus rapidly grow, or dilate, they harden at the same time, and, under the influence of a fine sunny day, the insect has only to raise and drop these splendid new additions to his organi- sation a few times, before he feels their strength sufficient for their destined purpose, and boldly takes to the new exercise of flight, in which he proves himself at once an adept without any previous practice. Having now traced the Butterfly from the egg to the perfect or imago state, it remains to state, in as few words as possible, the nature of the scientific terms by which his stages of development have been distinguished, and by which the order to which he belongs is defined. The egg state, as we have seen, was succeeded by the Caterpillar stage,—that for which Linneus invented the generic term larva, or masked state. This was again succeeded by the chrysalis, for which the same celebrated naturalist invented the almost equally felicitous term pupa, being the Latin term for an infant, which, bound in its swaddling clothes, after the ancient fashion still prevalent on the Continent, suggested to Linnzeus the idea of the larva bound in the chry- saline shell during the period which immediately preceded its change to the perfect state. This last he termed the imago state, or that of the true image, which had only been as it were, fore- shadowed in the previous stages of its existence. The aptness of these definitions is proved by their general adoption—no other terms than larva, pupa, and imago, being now employed in scientific works to designate the three principal stages of insect life. In dividing the vast numbers of the insect tribes into separate and homogeneous ‘orders,’ each distinguished by a title of appropriate character, the great family of Moths and Butterflies were formed by Linneus into an ‘order’ bearing the title of Lepidoptera, a term formed of the Greek words Jepis, a scale, making lepidos in the plural, and pferon, a wing, in allusion to the seales, with which the wings of this class of insects are invariably clothed. Aldrovandus, one of the old Italian naturalists, a contemporary of Shakespeare, adopted a similar mode of classification in reference to this order of insects, calling them Ale furinos, that is, the farinaceous, or floury- winged order. This is, however, less strictly descriptive than that of Linneus. But then Aldrovandus wrote before the invention of the microscope, which enabled later naturalists to define more exactly the nature of the seeming powder which covers the wings of Butterflies. A more recent naturalist, differing from Linnzeus, regarded the proboscis, or trunk, as strictly peculiar to this order of insects, and thence called them the Glossuta, or tongued tribe, a term founded on the Greek name of that organ. The Linnean term has, however, prevailed ; and Butterflies and Moths are now finally only known in scientific classification by the term Lepidoptera. Having settled the principle upon which the order was to be established, and the name by which it was to be distinguished, Linneus next attempted a series of subdivisions. Of these he made three principal ones. The first he termed Papilio, from the ancient Latin name by which the Butterfly was popularly known. This division included all the Butterflies, or day-flyers. The second he fancifully termed Sphing—a name which he adopted, because the Caterpillars, when in repose, assumed an attitude not unlike that in which the fabled Sphinx is generally represented. This division included the first section of the great Moth family—being those which generally fly by twilight. To the third class, consisting of all the rest of the Moth tribe which generally fly by night, he gave the term Phalene, a term which he may have adopted from the Greek word @éAawa, which means either a glow-worm, or any insect giving out light, and thus rendered conspicuous by night—the moth being only noticed in flight at that time: or he may have adopted another meaning of the word, which refers to such insects as fly towards alighted candle. Latreille found the general division thus effected open to little objection ; but xi INTRODUCTION. he discarded the fanciful terms by which they were distinguished, and adopted the more descriptive term Diuwrna, or day-flyers, for the first section ; Crepuscularia, or twilight-flyers, for the second division ; and Nocturna, comprising the night-flyers, for the last. The more recent method, however, adopted by Dr. Boisduval, in which only two great subdivisions are recognised instead of three, has been generally adopted in the scientific world. The great order Lepidoptera is, therefore, now divided, first into Lhopalocera, or those having clubbed horns, or antenne, from the Greek ropulon (gérurov), a club, or knob ; and ceras (agus), a horn; and secondly, into Heterocera, consisting of such as have various kinds of antenne, but never clubbed—the last term being composed of the Greek words cteros (2r ay ee eee De all PLATE XX. No. 1.—The Greasy Fritillary Butterfly, (Melitea No. 5.—The Duke of Burgundy Fritillary Butterfly. Artemis). No. 6.—The Under side of the Duke of Burgundy No. 2.—The Under side of the Greasy Fritillary Fritillary Butterfly. Butterfly. No. 7.—The Caterpillar of the Duke of Burgundy No, 3.—The Caterpillar of the Greasy Fritillary Fritillary Butterfly. Butterfly. No. 8.—The Chrysalis of the Duke of Burgundy No. 4.—The Chrysalis of the Greasy Fritillary But- Fritillary Butterfly. terfly. Meuir£a ARTEMIS (the Greasy Fritillary, No. 1) is perhaps the commonest of the genus, but is nevertheless very local. It is a very distinct species, two irregular bands of palish buff between the bands of black rendering it distinguishable at a glance from either Cinzia or Athalia. The under side (No. 2) is very similar to that of Athalia, but may be at once recognised by the paler character of all the markings, and the presence of a regular series of black spots circled with buff (in the broad band near the edge of the hind wings), which are absent in A¢thalia. The Caterpillar (No. 3) feeds on the Devil’s-bit Scabious, and on both the Plantains. Ac- cording to the graphic account of our good old English Aurelian, Moses Harris, the Caterpillar when full grown, draws together two or more blades of grass, fastening them at the top with a web, and suspending itself in the centre beneath ; but as I have never seen the Caterpillar or Chrysalis when suspended in this manner, I have merely represented it as attached by the tail in the usual way. The Chrysalis (No. 4) is of a pale flesh-colour, prettily ornamented with dark and regularly disposed spots. The Caterpillars, like those of IZ. Cinzia, are hatched in the autumn, and pass the winter in a similar manner. They become full grown in April, and the perfect butterfly appears in the following May or June. It is generally found in marshy places and has hence been termed by some entomologists the Marsh Fritillary. Specimens of Jf Artemis vary con- siderably in the intensity of their markings, some of the varieties having been mistaken for M. Cinwia. Near Brighton, and also near Bristol, this species has been recently taken in great abundance ; and Carlisle, Charnwood Forest, and Weston-super-Mare are also cited by Mr. Stainton as localities in which it is often captured, as well as York, Winchester, and Worcester. Melitea Dia, a closely allied species, was formerly found in our English catalogues as a native species, on the strength of specimens taken at Sutton Park, near Birmingham, and at Alderly in Cheshire, but it is now omitted. It is the Argynnis Dia of Hiibner and Ochsenheimer. The third family of Butterflies is that termed the Erycinidw, represented in British Collec- tions by a solitary European species, Nemeobius Lucina. In this family the males have only four perfect feet, like those of the Argynnidi, but the females have all six feet perfect. The Cater- pillars are onisciform, like those of the Lyccenide, to which family, therefore, this genus, in its present position, forms an appropriate link. The genus Nemeobivs has the antenne slender and the club short ; the wings are tawny ; the fore wings with the costa and hind margins straight, and the apex hardly rounded. The 40 THE GENERA AND SPECIES OF BRITISH BUTTERFLIES. male, as above stated, having only four legs fitted for walking, and the female six. The Cater- pillar is onisciform, or woodlouse-shaped. The Chrysalis is attached by the tail, and also se- cured by a loop round the middle. Nemeobius Lucina (the Duke of Burgundy Fritillary, No. 5) is the Hamearis Lucina of Hitbner, but Mr. Stephens’s name Nemeobins will be preferred, in consequence of the new and more appropriate location of the insect in its present position by that accomplished entomolo- gist. Mr. Curtis has quoted the following interesting description of the transformation of this pretty little Butterfly from the elaborate and accurate work of Hiibner :—“ The eges are found solitary, or in pairs, on the under surface of the leaves of Primula veris, and clatior at the he- ginning of summer ; they are almost globular, smooth, shining, and pale yellowish green. The Caterpillar feeds on these plants ; its head is roundish, heart-shaped, smooth, shining, and bright ferruginous, black only on the mouth and about the eyes: its body is almost oval, but long, de- pressed, and set with rows of bristly warts ; the other parts are set with feathery hairs ; on the back, at least from the fourth joint to the tail, there is a black dot on each joint, and on the sides similar but less distinct spots, the colour is pale olive orange ; its feet are rusty brown ; the spiracul black ; the claws and belly whitish. It moves very slowly, rolls itself up when disturbed, and remains in that state a long time. Soon after the middle of summer it becomes a pupa, not only fastening its body by the apex, but also by spinning a cord across its middle ; ” in this state it remains until the end of the following spring.” Hiibner, who reared it from the egg, says also that the Caterpillar throws off five skins before it becomes a pupa, and its ap- pearance, at different ages, varies considerably. The larva from which he made his drawing, and from which my representation (No. 5) is taken, he found on a Primula in his own garden. This pretty insect is not uncommon in the south of England, but more rare in the north. At Halton in Buckinghamshire it has recently appeared in great numbers ; and Brighton, Oxford, Plymouth, Winchester, and Dursley in Gloucestershire are cited as localities in which it is not unfrequent ; while even at York and Lyndhurst, in the north, persevering collectors have suc- ceeded in taking it in some plenty. PLATE XXI. No. 1.—The Brown Hair-streak Butterfly (Thecla No, 9.—The Caterpillar of the Dark Hair-streak Betule). Butterfly. No. 2.—The Female of the Brown Hair-streak But- No. 10.—The Chrysalis of the Dark Hair-streak of ee ee ‘ ; ; Butterfly. 2 ety ee ore irate No. 11.—The Black Hair-streak Butterfly (Thecla 1. No. 4.—The Caterpillar of the Brown Hair-streak s avn . Butterfly. No, 12.—The Female of the Black Hair-streak But- No. 5.—The Chrysalis of the Brown Hair-streak terfly. Butterfly. No. 13.—The Under side of the Black Hair-streak No. 6.—The Dark Hair-streak Butterfly (Thecla Butterfly, Pruni). No. 14.—The Caterpillar of the Black Hair-streak No. 7.—The Female of the Dark Hair-streak But- Butterfly. terily. . ; No, 15.—The Chrysalis of the Black Hair-streak No. 8.—The Wpder side of the Dark Hair-streak Butterfly. Butterfly. Tue fourth family of the Rhopalocera, or Diurnal Lepidoptera, is that of the Lycenide, containing three genera and twenty-one species, being above a fourth of the total number of British Butterflies. In this family the perfect insects of both sexes have six perfect legs fitted for walking. The larvie are short and onisciform. The Chrysalis is fastened by the tail, and also secured by a thread round the middle. The insects are generally much smaller than in the preceding families. The genus Thecla. The insects comprised in this genus present very marked characteristics, and group very homogeneously together. The hind wings have nearly always a narrow tail, The upper surface of the wings is generally of deep brown, with or without a patch or patches of orange ; the under side is often opaque gray, varied with delicate light streaks, from which they are called the hair-streaks, or with orange borders dotted with black. The Caterpillars and. Chrysalides of all the species accord with the characters assigned to the family. Thecla Betule (the Brown Hair-Streak, Nos. 1 to 5) is the largest of the genus. The male (No. 1) is smaller than the female, and the uniform deep brown of the upper surface of the Wings is only varied by a somewhat paler mark adjoining the short transverse black line in the centre of the anterior wings ; while the female (No. 2), which is much larger, is distinguished by a broad orange patch in the same position as the small pale mark in the male. The under- side (No. 3) is the same in both sexes. The Caterpillar (No. 4) feeds upon the foliage of the Birch and Blackthorn, &c., towards the end of June and beginning of July ; the perfect insect appearing in August. It frequents hedgerows, particularly in the southern counties. It is however a local, though far from a rare species. It has been recently taken at Blandford, Epping, Brighton, Lyndhurst, Peterborough, Teignmouth, Worcester, and other places. Thecla Pruni (the Dark Hair-Streak, Nos. 6 to 10) is smaller than the preceding, and the male is distinguished by an orange border on the hind wings. The female (No. 1) has an additional orange band near the edge of the front wings. The under side (No. 7) has the orange border with dots, above alluded to, and a narrow band or rather STREAK of white. The 42 THE GENERA AND SPECIES OF BRITISH BUTTERFLIES. Caterpillar (No. 9) feeds on the foliage of the Plum in May, and the perfect insect appears in J uly. The Chrysalis (No. 10) is marked with two patches of white, as shown in the illustration. This is, comparatively speaking, a new British species, not having been noticed, and Thecla IV. album, having been described as 7. Pruni, before Mr. F. Stephens detected the error in 1827 ; previous to that time it had evidently been confused with the other species, from which however it is very distinct. At Monk’s Wood, and at Overton Wood, Herts, it is sometimes taken in abundance, but in other localities it is extremely rare. Theela W. album (the Black Hair-Streak, sometimes called the W. Hair-Streak, Nos. 11 to 14). This pretty species has the upper surface of the wings entirely of a deep full brown, with the exception of a small pale speck in the front wings of the male. On the underside (No. 13) the white streak forms a strong zigzag towards the posterior angle of the hind wings, from which the specific name is derived. The Caterpillar (No. 14) feeds on the Elm and Blackthorn towards the end of May or beginning of June, and the perfect insect appears in July. This insect, as above remarked, was confused with 7. Pruni previous to the remarks of Mr. Stephens on this genus ; Villars and other entomologists having described the two species as identical. Previous to its discovery by Mr. Stephens in great abundance, at Ripley, in 1826, where he captured two hundred specimens without moving from the spot where he first noticed them, the insect was considered rare. Its appearance there in such vast numbers in that season is one of the curious entomological facts not easily accounted for, and like the swarm of Vanessa Antiopa at Camberwell, and the occasional swarms of Pieris Brassice, it still puzzles our entomologists. It has been recently taken at Brighton, Epping, Peterborough, York, and other places, but sparingly. PLATE XXII. No. 1.—The Purple Hair-streak Butterfly (Thecla No. 6.—The Green Hair-streak Butterfly (Thecla Quercis). Rubi). No. 2.—The Female of the Purple Hair-streak But- No. 7.—The Female of the Green Hair-streak But- _terfly. terfly. No. 3.—The Under side of the Purple Hair-streak No. 8.—The Under side of the Green Hair-streak Butterfly. Butterfly. No. 4.—The Caterpillar of the Purple Hair-streak No. 9.—The Caterpillar of the Green Hair-streak Butterfly. Butterfly. No. 5.—The Chrysalis of the Purple Hair-streak But- No. 10.—The Chrysalis of the Green Hair-streak terfly. Butterfly. THECLA QueERcUS (the Purple Hair-streak). This species is by far the handsomest of the British Theclas. It is also a very interesting species, as exhibiting most strikingly a peculiarity that distinguishes this genus. This peculiarity consists in the characteristic markings of the females, which, contrary to those of most other genera, are more conspicuous and brighter than those of the male. In Thecla Betule (Plate xxi.), we have seen that the female is distinguished by a fine patch of orange on the anterior wings, which is not found on those of the male. In Thecla Pruni the female has a border of orange on the fore wings, while those of the male are entirely brown. In the species now under description, the markings of the female are still more conspicuously different from those of the male—and of much greater comparative brightness, as they consist of large patches of the brightest metallic azure, while the wings of the males are of unvarying dusky purple, verging towards brown. The bright metallic blue resembles that which forms the ground colour of the wings of the male “ Purple Emperor ;” the female of which species has the ground colour of the wings of dusky brown—heing, in fact, much less brillant in its colouring than the male; and this and other similar instances led our English entomolo- gists to conclude that the most dusky toned of the sexes in Thecla Querciis was necessarily the female. This supposition has been now satisfactorily disproved, as the individuals with the wings brightly blotched with azure have been observed in the act of depositing their eggs. There are also distinctions in the form of the anterior feet of the two sexes, analogous to those of some preceding families, which also serve to prove that the largest and most brightly coloured indi- viduals in this genus are invariably the females. The character of the feet in the genus Theclu was first noticed by Dr. Horsfield, in his description of some of the magnificent Theclas of the island of Java. The male is represented at No. 1, the female at No. 2, and the under side at No. 3. The Caterpillar (No. 4) feeds upon the foliage of the Oak in May and June, and some- times burrows in the ground at the time of its change to the Chrysalis state, though it is most frequently found attached to a branch or the under side of a leaf, by a silken web. Réaumur gives a most interesting and a detailed account of the manner in which the Caterpillars of this genus attach the web round the body, which secures them during the Chrysalis state. The per- fect insect appears in July. It is pretty generally dispersed, and plentiful in the Southern counties, and is also found in 44 THE GENERA AND SPECIES OF BRITISH BUTTERFLIES. several localities in the North ; but is very rare in Scotland. It has been recently taken in great abundance at Brighton, Epping, Exeter, Tenterden, and other places. Thecla Rubi (the Green Hair-streak), This is the least Thecla-like of any of the British species, being nearly without the elongation of a portion of the hind wings, which is one of the chief characteristics of the genus. In other respects, however, especially in the Caterpillar and Chrysalis stages, it closely resembles its congeners. It is one of the earliest species, being often found in May. The male, the female, and a specimen showing the under side of the wings, are figured at Nos. 6, 7, and 8. The Caterpillar (No. 9) feeds on the common Bramble, and also on Papilionaceous, or Pea- flowered, plants. It may be found in May and June, and again in August. The autumnal brood remains in the Chrysalis state during the winter, Butterflies appearing in the following May. The perfect insects resulting from the spring brood of Caterpillars, appear about the beginning of August. It is very generally distributed, and rather common—being found in some abundance in most of the English counties, and in the south of Scotland, but rarely further North. Mr. Stephens describes a variety in which the white dots on the under side are much more conspicuous ; and also one in which the anterior wings of the female have a pale whitish spot near the centre of the anterior wings. It has been recently taken at Teignmouth in great numbers. The other species—Theela Spini and Thecla Llicis—were formerly considered British by some collectors, but they are both omitted in recent catalogues. PLATE XXITII. No. 1.—The Copper Butterfly (Chrysophanus Phileas). No. 8.—The Purple-edged Copper Butterfly (Chry- No. 2,—The Copper Butterfly, showing the Under sophanus Chryseis). side. No. 9.—The Female of the Purple-edged Copper No. 3.—The Caterpillar of the Copper Butterfly. Butterfly. No. 4.—The Chrysalis of the Copper Butterfly. No. 10.—The Purple-edged Copper Butterfly, show- No. 5.—The Dark Under-winged Copper Butterfly ing the Under side. (Chrysophanus Hippothoé). No. 11.—The Caterpillar of the Scarce Copper But- No. 6.—The Female of the Dark Under-winged Copper terfly. (The Butterfly in Plate xxiv.) Butterfly. No, 12.—The Chrysalis of the Scarce Copper Butter- No. 7.—The Dark Under-winged Copper Butterfly, fly. (The Butterfly in Plate xxiv.) showing the Under side. THE genus Chrysophanus, which follows Thecla in the beautiful family of Lycenide, is so distinct from its predecessor in many respects, that it would seem almost to mark the commence- ment of a new family. The Theclas, so peculiar in regard to the superior brightness of the colouring of the females, and also in the taillike appendage to the hind wings which is always present in good typical species, which seem to distinguish them as a separate family, might be denominated the Theclide ; while the genus Chrysophanus, along with Polyommatus, might be formed into a separate family by Swainson’s title of the Polyommatide, as both genera exhibit the numerous eye-like ringed spots on the under surface of the wings, to which the descriptive generic name Polyommatus is applied. It is true that Swainson’s Polyommatide included the Theclas, which might however be separated, reserving the family title only for the two genera to which its meaning applies. This, however, is a mere suggestion to the collector to incite him to consider any system of classification with regard to its merits, and not receive it without exami- nation ; for I am bound in this volume to the system now adopted in the British Museum, as announced in my introduction. The chief character of the genus Chrysophanus may be described as follows : First, the rich gold-like colouring of the wings of the males, which has given rise to the name Chrysophanus, compounded of two Greek words, xeusts (gold), and guiw (to appear). The metallic golden hue is, however, of a deep red tone, which has suggested to our native collectors the popular name of “Coppers.” Secondly, the slight pointing of the hind wings, which in the first species, Phlwas, extends into a short tail, which makes that species form a convenient grad- ation from the genus 7hecla to the present genus. Thirdly, the wings of the males are the most brilliantly coloured, those of the females being of more dusky tone, and always varied by black spots which (with the exception of the very distinct species C. Phi@as) never occur in those of the males, Fourthly, the Caterpillars, though more or less onisciform, are longer and not so much flattened as in the genera Thecla and Polyommatus. There are several other minor ana- tomical characters connected with the knobs of the antenne, the form of the palpi, and the veining of the wings, the detailed description of which would be out of place in a strictly popular work. Chrysophanus Phileas (the Copper, No. 1). This pretty species is common in all parts of the country. There is no difference in the markings of the two sexes in this species, though they are so distinct in the others of the genus ; the hind wings have also short tails resembling those of the Zheclas, as stated above. 46 THE GENERA AND SPECIES OF BRITISH BUTTERFLIES. The Caterpillar (No. 3) is green, with a red stripe on each side. It feeds upon the common Sorrel, Rumex acetosa ; and there are most probably several broods, as the perfect insect appears in April, June, and August. The Chrysalis (No. 4) is found attached to the stem of the Sorrel, This pretty Butterfly is common everywhere, especially on heaths and commons ; where, being a pugnacious inseet, it is observed giving battle to intruders upon its domain, often engaging in combat with some of the largest of the Butterfly tribe. There are several striking varieties of this pretty species. The one in which the copper border of the hind wings is wanting, is perhaps the commonest. In another variety, the copper colour on both the surfaces of the wings is replaced by milky white, leaving the dark spots. Another has the deep copper colour reduced toa pale orange, and the black spots and black portions of the hind wings are white. These varieties are more or less rare, and, as [am informed by Mr. Bond (whose well known collection of British Lepidop- tera is one of the finest in the country), such varieties are in most instances confined to par- ticular districts, in each of which not more than one of the varieties is found. Chrysophanus Hippothoé (the Dark Under-winged Copper, Nos. 5 to 7). This species is omitted in many Catalogues of native Lepidoptera, the ground for supposing it a British insect being considered doubtful. “The best-known ‘British’ specimen,” writes Mr. Westwood, “was obtained from an old collection made in Kent, which was known among collectors as F] the ‘ Kentish Cabinet.’” Some have supposed the species identical with C. dispar ; but a com- parison with the figures will sufficiently prove their distinctness. The true Hippothoé of the Continent is invariably much smaller than our C. dispar, and is of lighter colour in the centre of the wings, shading to deep purplish on the edges ; while in C. dispar (in the males) the intensity of colour is the same all over the upper surface of both pair of wings. Chrysophanus Chryseis (the Purple-edged Copper, Nos. 8 to 10). This species has also be- come of extreme rarity, though formerly taken near Epping, from whence Dr. Leach is said by Mr. Stephens to have received fresh specimens during several successive seasons. It was also taken at Ashdown Forest, Sussex. On the Continent both this and the last species are plentiful, in marshy places in some districts, where they appear towards the close of summer. Bias rere PLATE XXIV. No. 1.—The Scarce Copper Butterfly (Chrysophanus Virgauree). No. 2.—The Female of the Scarce Copper Butterfly. No. 3.—The Scarce Copper Butterfly, showing the Under side. No. 4.—The Large Copper Butterfly (Chrysophanus No. 5.—The Female of the Large Copper Butterfly. No. 6.—The Large Copper Butterfly, showing the Under side. No. 7.—The Caterpillar of the Large Copper Butter- fly. No. 8.—The Chrysalis of the Large Copper Butterfly. dispar). (The Caterpillar and Chrysalis of the Scarce Copper Butterfly are represented in Plate xxiii. at Nos. 11 and 12.) CHRYSOPHANUS VIRGAURE# (the Scarce Copper, Nos. 1 to 3). of the true Chrysophani. black spots, except close to the border of the hind wings ; those of the female (No. 2), having numerous large black spots. The Caterpillar (No. 11, Plate xxiii.) is onisciform, but not flattened ; and the Chrysalis (No. 12, Plate xxiii.) is secured to a leaf or stem by a knob of web at the tail, and a girth at the middle. The under side (No. 3), is less distinctly ted than any of the old species by the ocellated spots which distinguish the genus. The Caterpillar feeds on the Golden-rod (Solidago Virgauree). This species has not been recently taken, and is considered by some to be doubtful as British, notwithstanding the existence of several specimens in old cabinets. It is possible that it may have become extinct, as we have seen C. dispar entirely disappear within the last few years. Chrysophanus dispar (the Large Copper, Nos. 4 to 8). This beautiful and conspicuous insect is, as far as we know at present, peculiar to England, no specimen having ever been as yet taken on the continent of Europe, or in any other quarter of the world. M. Boisduval, however, thinks it a large local variety of the Continental C. Hippotho’. However this.may be, there has been so great a demand for this beautiful insect since the appearance of the figure of it in Donovan's work, that the species is supposed to be extirpated—recently captured specimens haying been sold as high as £4 the pair. The male (No. 4) is rather smaller than the female, but of much more brilliant colour. The female (No. 5) is marked with large black spots, and the hind wings are nearly black, with a copper-coloured border. This species is the first The rich copper-coloured wings of the male (No. 1), are free from There is a female variety in which the border of black on the front wings is much narrower than in the specimen figured, and in which the copper-coloured border of the hind wings is much more dusky. The under side (No. 6) has the ocellated spots much more strongly and clearly marked than any other species of the genus, and is the same in both sexes. The Caterpillar (No. 7), which feeds on the Great Water Dock (Rumen aquaticus), is pale green, thickly powdered with white specks, and appears in June. The Chrysalis (No. 8) is at first green, then pale ash coloured, and eventually (in some specimens) deep brown. The perfect insect appears in July and August, and was formerly abundant in the Fenny districts of Huntingdon and Cambridge shires ; and it has been taken at Benacre in Suffolk, and 48 THE GENERA AND SPECIES OF BRITISH BUTTERFLIES. Bardolph Fen in Norfolk. So active has been the pursuit of this beautiful insect during the last twenty years, that, as above stated, it is now sought for in vain in the haunts but recently so brilliant with its metallic hues towards the close of each summer. It is thought, however, by some entomologists that it may reappear in some favourable season, as insects occasionally do, in a mamner which has not been satisfactorily accounted for. It is possible, by a provision of nature, that a certain reserve of eggs remains unhatched for long epochs, to guard against the extinction of species by unfavourable seasons; but whether from this or other causes, it is certain that species do occasionally disappear for a time, to be found again at some subsequent period. It has been noticed by Lacordaire that in common species of Lepidoptera, a certain portion of the eggs frequently remains unhatched the first season, which, so far from being barren, as generally supposed, produced Caterpillars in the following year—and therefore it is possible that in some cases the vital principle may remain dormant for longer periods. Mr, Bond, who has frequently chased the C. dispar on the wing in the Fens of Cambridge and Huntingdon, says, “It is difficult to capture, seldom affording an opportunity for a second stroke of the net if the first have been unsuccessful.” This, however, is of little consequence to young collectors, as matters stand ; for it seems they are not likely again to have an opportunity of exerting their skill in the capture of this coveted prize of the British Lepidopterist. PLATE XXYV. No.1.—The Azure Blue Butterfly (Polyommatus No. 6.—The Small Blue Butterfly, showing the Argiolus), Under side. No, 2.—The Female of the Azure Blue Butterfly. No. 7.—The Caterpillar of the Small Blue Butterfly. No. 8.—The Chrysalis of the Small Blue Butterfly. No. 3.—The Azure Blue Butterfly, showing the No. 9.—The Mazarine Blue Butterfly (Polyommatus Under side. Acis). iter oo Ue Buttery: (Polyommatis No. 10.—The Female of the Mazarine Blue Butterfly. = ued No. 11.—The Mazarine Blue Butterfly, showing the No. 5.—The Female of the Small Blue Butterfly. Tndeniaide: THE genus Polyommatus. This genus is principally distinguished from Chrysophanus by the bright blue colour of the upper surface of the wings of the males. The females are generally brown, or at all events of a duller colour than the males, and in a few species both sexes have the upper surface of the wings brown. The under sides of the wings closely resemble those of the insects assigned to the genus Chrysophanus, presenting, however, certain differences to be described in speaking of the respective species. The Caterpillars are onisciform, the head and feet very small, and scarcely observable with- out minute examination ; they are generally yellowish-green, variegated by markings of red, brown, or yellow. They feed generally on the foliage of Papilionaceous, and other low growing plants; that of P. Argiolus, however, feeds wpon the Holly, preferring the flowers. The Chrysalis is generally naked and attached to a branch of the plant on which the Caterpillar has fed ; but in some cases the Caterpillars burrow in the earth to undergo their transformation. This genus has representatives not only in all parts of Europe, but in North and South Africa, the East Indies, and North America, while but very few of the species are known in South America. Polyommatus Argiolus (the Azure Blue, No. 1). This is a very delicate and beautiful little Butterfly. The azure of the upper surface is of a soft and pleasing tone of light blue, and the under side a most delicate pale pearly gray, with the usual ocelli more slightly, but yet distinctly marked. The female differs in size, not as in the genus Chrysophanus from being larger than the male, but on the contrary smaller. In addition to the smaller size, the female may be at once distinguished by the more dusky colour, and by the deep black border of the anterior wings, and the dotted border of the hinder pair. The Caterpillar is described by Ochsenheimer as being of yellowish-green, with a double line along the back. It feeds on the flowers of Holly, and also it is said on those of the Ivy. The later brood probably do, as the Holly is out of bloom when they appear; some entomolo- gists, however, assert that there is only one brood of this pretty species, though specimens of the perfect insect are taken as early as April, and as late as August. The Chrysalis is brown, with a deep dorsal line. The Butterfly is very distinct in its habits, most of its congeners being generally found in gardens and plantations where Holly abounds. It is rather local ; but very widely dispersed, and in some places plentiful, being found quite in the North of England, but not in Scotland. 50 THE GENERA AND SPECIES OF BRITISH BUTTERFLIES. Polyommatus Alsus (the Small Blue, No. 4). This is the smallest of our native Butterflies, Though termed by collectors one of the “Blues,” the upper surfaces of the wings of both sexes are brown ; those of the male, however, having a flush of blue near the base. The under side resembles that of the other Polyommati. The Caterpillar of this species (No. 7) feeds upon the Alpine Milk Vetch (Astragalus Cicer), the Chrysalis being attached to a stem of the same plant. The Butterfly appears in May, and again in July and August. It is most plentiful in chalk and limestone districts, but is often found in some abundance in other localities. Polyommatus Acis (the Mazarine-Blue, No. 9). This handsome insect is conspicuously dif- ferent from the other species in its deep full blue, which has a satin-like gloss that gives it great brilliancy. The upper surface of the wings of the female are dark brown, with only a light purple flush towards the base. The Caterpillar is unknown. This is a rare species ; but it is in some seasons taken in some plenty in chalky districts. Tt appears in May and June, and again in August, being double brooded. Mr. Newman states that it was formerly plentiful in Herefordshire, and supposes it to be still plentiful there ; but Mr. Allis writes to Mr. Stainton that he knows of no capture within the last seven years. PLATE XXVI. No.1—The Large Blue Butterfly (Polyommatus No. 6.—The Chalk-hill Blue Butterfly, showing the Arion). Under side. Bieae, We Femolecf the Large eae No. 7.—The Caterpillar of the Chalk-hill Blue Butter- No. 3.—The Large Blue Butterfly, showing the Under fly. side. - y ; No. 4.—The Chalk-hill Blue Butterfly. No. 8.—The Chrysalis of the Chalk-hill Blue Butter- No. 5.—The Female of the Chalk-hill Blue Butterfly. fly. PoLYOMMATUS ARION (the Large Blue, No.1). This is by far the largest and most splendid of the “ Blues,” as the blue section of the Lycenide are popularly termed by our collectors. It was at one time considered extremely rare, and by some scarcely believed to be a true British species. But several localities were subsequently discovered, in which it was found each season in some plenty, and the further discoveries of more recent lepidopterists have removed all doubts as to its being a native species. The spots on the wings of the male differ very consider- ably both in size and intensity of colour; the figure (No. 1) being taken from a specimen of medium strength in the marking. The Female (No. 2) is generally rather larger than the male, and has the spots and dark borders broader, but less strong in colour ; and the blue ground is of a duller tone. The under side (No. 3) has the ocellated spots larger, more regularly disposed, and more sharply defined than any other of the genus. The Caterpillar is unknown. The perfect insect appears in July, and the localities in which this entomological prize is said to have been taken are the following: the Mouse’s Pasture, near Bedford ; Dover Cliffs ; Marlborough Downs ; the hills near Bath ; Broomham Common, Bedfordshire ; near Winchester ; and in one or two localities in North Wales. But the most celebrated locality, and one in which it has been recently taken in some plenty, is Barnewell Wold, near Oundle, Northamptonshire, in which place the Rev. W. Bree states in a communication to the “ Zoologist” for 1852, that for several seasons previous to that year entomologists had visited the place, and captured many specimens, without seeming to diminish the annual supply. Since 1852, however, the continued pursuit appears to have grievously diminished the numbers of this beautiful imsect in this locality ; and we may therefore look forward to its becoming extinct in Barnewell Wold, as C. dispar has done in its once favourite fens of Cambridge and Huntingdon. In the year above named, however, the Rey. F. O. Morris informs us that on the 19th and 20th of July he took no less than eleven specimens. Polyommatus Corydon (the Chalk-hill Blue, No. 4). This species is the next in size to P. Arion, and if it were not so much more common, would be considered nearly as beautiful. The silvery-blue of the male (No. 4), just flushed with a tint of straw-colour, produces a peculiarly delicate effect, which is heightened by the dark border, becoming nearly black at the base of the fringe. The wings of the female (No. 5) are of rich brown, with a sharp touch of white near the centre of each ; and an ochreous border with black dots, both border and dots being much more conspicuous in the anterior wings than in the hinder pair. Or Lo THE GENERA AND SPECIES OF BRITISH BUTTERFLIES. The under side (No. 6) is not so symmetrically decorated with the usual ocelli as P. Avion, but it is, nevertheless, very distinctly and beautifully marked. The Caterpillar (No. 7) is said to feed on several species of Vetch, and also on the wild Thyme (Thymus Serpyllum). The perfect Butterfly appears in July, and is tolerably plentiful in the localities which it favours, principally in chalky districts. ‘Some of the localities in which it has been found most regularly and abundantly are the following :—Dover, and many other places along the southern coast ; Newport in the Isle of Wight ; Darenth Wood, Kent; several places in Suffolk, and Oxfordshire ; and abundantly near Newmarket, Cambridgeshire. It is also found in the Prest- bury Hills, near Cheltenham, and in some localities in the neighbourhood of Winchester and near Great Bedwyn, Wiltshire. It must formerly have been much more abundant than now, as it often outnumbers many species in the Butterfly pictures, or rather stars, and other similar devices formed by the Spitalfields weavers in years gone by, with the specimens which they then captured for no other purpose. I purchased a small collection of Butterflies in a rough home-made cabinet a few years ago, in which one entire tray was filled with specimens of P. Corydon, among which were many rather striking varieties, but all in a bad condition. The male is sometimes so strongly suffused with brown, that it closely resembles the female, for which it might easily be mistaken by an inexperienced collector. PLATE XXVILI. No. 1.—The Clifden Blue Butterfly (Polyommatus No. 6.—The Common Blue Butterfly, showing the Adonis). Under side. No. 2.—The Female of the Clifden Blue Butterfly. No. 7.—An Hermaphrodite variety of the Common No. 3.—The Clifden Blue Butterfly, showing the Blue Butterfly. Under side. No. 8.—The Caterpillar of the Common Blue Butter- No. 4.—The Common Blue Butterfly (Polyommatus fly. Alexis). No. 9.—The Chrysalis of the Common Blue Butter- No. 5.—The Female of the Common Blue Butterfly. | fly. PoOLYOMMATUS ADONIS (the Clifden Blue Butterfly, No. 1). This insect, in so far as the colour is concerned, is the most beautiful of the “Blues.” The azure of the upper surface of both pair of wings is of the most delicate silvery blue, the effect of which is at the same time heightened and refined by the snowy whiteness of the fringe. The female (No. 2) has the upper surface of the wings of rich deep brown, but having to- wards the base a flush of rich violet blue, which is much brighter and more distinct in some specimens than in others. The upper surface of the wings of the female is also distinguished by borders of a lighter colour, containing a row of black spots; the borders of the hind wings being of a dusky orange colour, while those of the anterior wings are merely of a pale brown. It is rather difficult to distinguish the female of this species from that of P. Corydon, but P. Corydon has a black spot on the upper surface of the hind wings which is absent in Adonis. The female has also, occasionally, white specks in the centre of the fore wings. The under side (No. 3) is very delicately enriched with the usual ocelli, and is distinguished from that of P. Corydon by the small and more delicate character of both ground colour and markings. The Caterpillar, according to Freyer, is of the usual onisciform character; of dark green colour, with two rows of short yellow streaks on the back, and a yellow longitudinal stripe at each end. Ochsenheimer describes it as feeding on several species of pea-flowered plants, The perfect insect appears in May and June, and is chiefly found in chalky districts. Dartford, in Kent, was formerly a favourite locality with London collectors for this beautiful insect. It has been recently taken at Brighton in great abundance. Polyommatus Alexis (the Common Blue Butterfly, No. 4). This, though one of the most abundant of our native Butterflies, common in almost every district of the country, is a remark- ably pretty insect ; and though inferior to P. Adonis or P. Arion, has yet beauties of its own which seldom fail to attract even the uninitiated observer. The blue of the upper surface of the wings has a soft and rich lilac tinge, which is very pleasing ; and the texture is of a silky cha- racter, which shows off the colour to the greatest advantage. The one represented at No. 4 is rather a dark specimen, the colour varying considerably in different individuals. The female (No. 5) has the upper surface of the wings brown, with ochreous borders spotted with black, and with a slight flush of blue towards the base. The under side represented at No, 6 is of the usual character, and like that of all the other species nearly alike in both sexes. 54 THE GENERA AND SPECIES OF BRITISH BUTTERFLIES. The Caterpillar (No. 8) feeds most commonly on Lucerne, in April, and again in September, there being two broods in the year. It also feeds on Clover and Bird’s-foot Trefoil. The Chrysalis (No. 9) is attached by a girth round the middle to a stem of the plant on which the Caterpillar has fed. There are many varieties of this pretty species, principally among the females. Some of these have the brown scales of the upper surface of the wings so thickly intermingled with blue ones that the blue colour almost preponderates, and the females have almost the appearance of very dark coloured males. But the most singular variety is that known as the Hermaphrodite (No. 8), which has the brown wings of the female on one side, and the azure wings of the male on the other. Other varieties were thought distinct species both by Lewin and Haworth, and Jermyn, and distinguished as P. Hyacinthus, P. Thestylis, and P. Lacon. Some of these varieties are so constant in some localities that one of our most accomplished ento- mologists (the late Mr. Stephens), even within the last few years was inclined to consider them distinct species. But recent observations of exotic Butterflies have shown such extraordinary aberrations in the usual specific characters, that such distinctions as those alluded to must cease to be regarded as anything more than variations produced by some local influence, such as soil, climate, food, or some such other disturbing cause. Among the most remarkable aberrations in size and colouring of exotic Butterflies, evidently of the same species, those of the magnifi- cent Papilio Priamus may be cited. This gorgeous insect in its ordinary character, has the ground colour of the upper surface of the wings, of a full deep metallic green, while in a speci- men just received at the British Museum the green is replaced by a perfectly distinct tone of rich orange yellow. No. 7 is one of the more usual varieties of the female of P. Alexis, in which the wings are nearly as blue as those of the males, but have the distinctive border which is found in brown specimens. PLATE XXVIII. No. 1.—The Silver-studded Blue Butterfly (Polyom- No. 5.—The Chrysalis of the Silver-studded Blue matus Egon). Butterfly. No. 2.—The Female of the Silver-studded Blue No. 6.—The Brown Argus Butterfly (Polyommatus Butterfly. Agestis). No. 3.—The Silver-studded Blue Butterfly, showing No. 7.—The Female of the Brown Argus Butterfly. the Under side. No. 8.—The Brown Argus Butterfly, showing the No. 4,—The Caterpillar of the Silver-studded Blue Under side. Butterfly. THE insects represented in this Plate will complete the illustration of the genus Polyommatus, which has occupied the three preceding ones. Polyommatus Afgon (the Silver-studded Blue Butterfly, Nos. 1 to 5). This pretty species is at once distinguished by the metallic spots which form part of the markings of the under side of the hind wings, and also by the dark blackish border to the blue on the upper surface of the wings of the male. The female (No. 2) is rather larger than the male, and of a warm coppery brown, all four wings having a bordering of small orange marks of a somewhat triangular form. The under side of the wings, which is very nearly alike in both sexes, is shown at No. 3. The Caterpillar (No. 4) feeds upon Broom, Saintfoin, and several species of Trifolium. The Chrysalis (No. 5) is at first of a bright green colour, but as the shell hardens it becomes brown. The perfect insect is found on marshy commons or damp fields in July. It is very rarely found in the North of England, but in the Southern counties it is not uncommon, especially in certain localities which appear suitable to its habits, particularly in the vicinity of Sarum in Wiltshire, in some places in Nottinghamshire, and Coleshill Heath, Worcestershire. It is found, though rather sparingly, in the metropolitan counties. There are several rather remarkable varieties of this pretty species. One is a brown variety of the male—the upper surface of both pairs of wings being of a pale tawny colour. Another variety, formerly considered a separate species under the name of P. Alcippe, has the wings very narrow, and the pale blue is bordered by a much darker and more distinct band at the edges. A third variety has the two rows of dots on the under surface running into each other, and forming a series of dark stripes which give it a very distinct appearance. This species was named P. maritima, as having been found in the salt marshes near Holt, in Norfolk. There are several other varieties of this pretty species, but of a less remarkable kind. Polyommatus Agestis (the Brown Argus Butterfly, Nos. 6 to 8). This very distinct species has all the characteristics of the “Blues” except the blue colour of the upper surface of the wings in the males, both sexes of P. Agestis being of the same dark brown hue as the females of most of the other species. The male (No. 6) is of a darker and brighter brown than the female. The female (No. 7) is sometimes rather larger than the male, and has the borders of orange oH ao THE GENERA AND SPECIES OF BRITISH BUTTERFLIES. marks more conspicuous, the black spots within them being very strong in the hind wings. The under side of the wings, which is similar in both sexes, is shown at No. 8. The Caterpillar is described as being green, with a row of angular dorsal markings of a paler tone, and a central line of brown. It is found both in April and June, the perfect insect appearing in June and August, this species being double-brooded. Some authors consider P. Salmacis and P. Artaxerxes as mere local varieties of the species under description. But in the collection of the British Museum they are still kept separate and distinct, and will therefore be described as distinct species in this volume. PLATE XXIX. No. 1.—The Dark Argus Butterfly (Polyommatus Sal- No. 4.—The Scotch Argus Butterfly (Polyommatus macis) . Artaxerxes). No. 2.—The Female of the Dark Argus. No. 5.—The Female of the Scotch Argus. No. 3.—The Dark Argus, showing the Under side. No. 6.—The Scotch Argus, showing the Under side. By many British Entomologists the two species figured in this Plate are considered mere varieties of Polyommatus Agestis. It is, however, very difficult to draw a line which shall cor- rectly and satisfactorily separate certain slight deviations from a generic type, into distinct “species” on the one hand, and mere “ varieties” on the other. In some cases the distinctions produced merely by climate and other local causes are allowed to constitute perfect and specific characteristics, while in others, equally striking differences are treated as mere variations. It would seem that where particular characteristics are constantly and regularly transmitted from the parent to the offspring, the peculiarities, not being variable, must be considered as marks of distinct species. On the other hand, when any such peculiarities of colour or structure are evi- dently accidental, and occurring in broods where the majority are of the usual kind, then, how- ever striking the differences may appear, they can only constitute “ varieties.” To meet the first of these cases, the term “ permanent variety” has been invented, while the insects clearly belonging to the second category are termed simply “varieties.” But it may be fairly assumed that a “ permanent variety” is precisely equivalent to a species. Such “ permanent varieties” might be tested as to their claim to be considered species by removing broods of them to the localities where the typical species abound, and if their distinctive characteristics remain unim- paired, which they are very likely to do, although originally produced by local causes—then there could be no longer any doubt as to their claim to be considered distinct species, for it is no doubt to local influences, acting through a long series of ages, that many of the most striking “specific” characteristics have been produced. If such a line of argument be admissible, then, till further investigation throws more light on the subject, Polyommatus Salmacis, which is only found in our northern counties, must be considered as a distinct species, inasmuch as its chief characteristics are permanent, and would probably remain so, at all events for a long series of generations, if a colony of it could be es- tablished in a more southern situation. The same may be said of P. Artaverxes. It is, how- ever, but fair to add, that gradations of these disputed species occur in intermediate localities, seeming to afford links between these two kinds, which would prove a very close relationship. Mr. Newman in the “ Entomological Magazine,” states, for instance, that, as the Brown Argus of the metropolitan districts advances to the midland counties, an evident change takes place, and the band of rust-coloured spots becomes less bright. At Manchester these spots have nearly left the upper wing; at Castle Eden Dene they are scarcely to be traced, and a black spot in the centre of the upper wing becomes fringed with white, being in some specimens quite white ; the Butterfly then changes its name to Salmacis. As we proceed further northward, the black pupil leaves the “eyes” on the under side, until, at Edinburgh, it is quite gone, and then the insect is called Artaxerzes.* #* My. Gardner informs us that all three species have been taken at Castle Eden Dene. 58 F THE GENERA AND SPECIES OF BRITISH BUTTERFLIES. It is probable that almost all other specific variations from a generic type might be traced in a similar manner through successive gradations, and the only question would then be, as to whether the term “ species,” or “ permanent variety,” should be the one adopted. Being myself rather inclined to class all permanent and transmissible forms as those of distinct species, [shall describe P. Salmacis and P. Artaxerxes as distinct species, according to the arrangement adopted in the British Museum. Polyommatus Salinacis (the Dark Argus, No. 1). This species is generally conspicuously darker than the Brown Argus (P. Ayestis), and is further distinguished by an obscure black spot near the centre of the fore wings. The border of dull orange markings of the fore wings are without the black spot in each which distinguishes a similar border in the fore wings of Agestis ; but in the hind wings the orange border has also the black spots. The female (No. 2) is only distinguishable by a white spot in the centre of the fore wings, and this mark is not a perma- nent distinction, as it sometimes occurs in the males, while the black spot appears equally trans- ferred to the wings of the females. The under side (No. 3), though shghtly differmg from P. Agestis, as will be seen, presents no very striking distinction. The Caterpillar stage of P. Sulmacis is unknown, or it might tend greatly either to es- tablish or destroy its claim to be considered a distinct species. The perfect insect appears in July, and has only been found in the neighbourhood of Durham and Neweastle, seldom above half a mile from the sea. A single specimen has recently been taken near Brighton, which, though described as P. Agestis with an unusual white spot on its fore wings, is most probably a specimen of P. Sulmacis, which may yet be found at other points of the coast, if diligently sought for, as a marine species. Polyommatus Artazxerves (the Scotch Argus, No. 4). It was formerly thought that this pretty insect was only to be taken at Edinburgh, and in the sole locality of Arthur’s Seat. It has, however, been recently captured in many other places in the north of England, as well as Scotland. The white markings on the under side of the wing (No. 6), which are entirely without the usual black pupil, render it at a glance very distinct from all the other Polyommati, and the discovery of the larva by Mr. Logan, which is of a blueish green, with a dark dorsal line and a pale lateral one, and in other respects differing from the larvae of all other species of the genus, appears to establish its claim to be considered a distinct species. The female (No. 5) may generally be distinguished from the male by the greater breadth of the border of orange patches on the hind wings. This pretty little Butterfly is double brooded, appearing in June, and again in August. There is some reason to fear that dealers, in their anxiety to procure as many specimens as possible, for which they get a good price, will ultimately extinguish this species as they have done the beautiful C. Dispar, in the Fens of Huntingdon,* for they have to furnish foreign as well as British cabinets with the Scotch Argus, which (though P. Agestis is plentiful,) is certainly unknown on the Continent. Mr. Logan, the enthusiastic Scottish entomologist, expresses himself very energetically on the probable extinction of the race of this elegant little insect, and in defence of his cause has even found out an objection to roadmaking, certainly never dreamed of by speculative proprie- tors, namely, that the one in question is likely to destroy the best known locality for Polyomma- tus Artaxerves. He thus writes to Mr. Stainton,— Government has agreed to construct a carriage-road between Edinburgh and Duddington, much to my disgust, as it is to come along the line of the present footpath, and will destroy all the best localities for ‘Artaverzes’” If the Government could be made aware of the serious injury it is about to inflict, in causing the destruction of the best known locality for the capture of Mr. Logan’s favourite Butterfly, it might yet desist from its purpose. * Mr. W. P. Russel has this season taken a fine female specimen of C. Dispar, in St. Osyth Woods, Essex. PLATE XXX. No. 1.—The Grizzle Butterfly (Pyrgus Alveolus). No. 9.—The Dingy Skipper, showing the Under No, 2.—The Female of the Grizzle. side. No. 3.—The Grizzle, showing the Under side. No. 10.—The Caterpillar of the Dingy Skipper. No. 4.—The Caterpillar of the Grizzle. No. 11.—The Chrysalis of the Dingy Skipper. No, 5.—The Caterpillar of the Grizzle preparing to No. 12.—The Chequered Skipper Butterfly (Cyeclo- undergo the change to the Chrysalis. pedes Paniscus). No. 6.—The Chrysalis of the Grizzle. No. 13.—The Female of the Chequered Skipper. No. 7.—The Dingy Skipper Butterfly (Nisoniades No, 14.—The Chequered Skipper, showing the Under Tages). side. No. 8.—The Female of the Dingy Skipper. No. 15.—The Caterpillar of the Chequered Skipper. Tue Fifth Family of Rhopalocera, or Butterflies, is that of the Hesperidw, contaiming a small group of insects, which by the structure of the antenne, and other characteristics, form a natural link between the last group of Butterflies and the first group of Moths. The Iesperida have the head remarkably broad, and the antennz inserted on each side, instead of being very near together as in other Butterflies. Some of the species also carry their wings horizontally when in repose, after the manner of Moths. The Caterpillars have the head large, as in the perfect insect, and they live in rolled leaves, in the manner of certain Moths ; and they also re- semble them in forming a slight cocoon, which is rarely the habit of the larvee of true Butter- flies. There are four British genera, containing seven species. All these are of comparatively small size, and have generally a jerking motion in their flight ; having thence received the name of “skippers,” by which they are popularly known to collectors. The genus Pyrgus. The antenne of this genus have the club gradually formed, but not hooked at the tip like some others. The wings are rounded, have deep chequered fringes, and are deflexed in repose. The Caterpillars are leaf rollers, and the Chrysalides are formed in a slightly webbed cocoon within the curled leaf that has served as the abode of the Caterpillar. There is but one British species. Pyrgus Alveolus (the Grizzle, Nos. 1 to 6). This is a common insect, especially in and near woods. The Caterpillar feeds most commonly on the wild Raspberry (Bubus Idwus) in April, and again late in the summer, and is to be found within rolled leaves held together by a web. It also feeds on the Teazle (Dipsacus fullonum). The perfect insect appears in woods and shady lanes in May and August. It has recently occurred in great abundance at Brighton, Bristol, Epping, and other places. There are several rather curious varieties of this species, the most permanent of which is one in which the white marks towards the tips of the fore wings run into one great irregular patch leaving only the veins dark, while in the hind wings the white marks are smaller and more obscure. This variety is said to be pretty constant in the forest near Bewdley, Worcester- shire, and occurs occasionally in many other localities more irregularly and more sparingly. The genus Wisoniades. In this genus the antenne are rather longer and more slender than 60 THE GENERA AND SPECIES OF BRITISH BUTTERFLIES. in the preceding , and have the club attenuating to a point at the tip. The wings are horizon- tal or deflexed in repose, never being held erect, as is common with true Butterflies. We have but one British species. Nisoniades Tages (the Dingy Skipper, Nos. 7 to 11). This insect is not near so common as the preceding, but is yet found in some plenty in various localities. It is double brooded. The Caterpillar, which feeds in preference upon the Birds-foot-Trefoil, and Field Eryngo, appears in June and September ; the perfect insect in May and August. It is found most frequently on the slopes of hills, and in dry exposed places near woods. Bromsgrove, in Worcestershire, and Dovedale, in Derbyshire, are mentioned as places where it has been recently captured in suffi- cient plenty. The Rev. F. O. Morris informs us, that it is found in great abundance in Ireland, at Ardrahan, near Galway. The genus Cyclopedes. The antenne of this genus are short and stout, and the club thick but not hooked at the tip. The front wings are long in proportion to the hinder pair. The sexes do not differ in colour. Cyclopedes Paniseus (the Chequered Skipper, Nos. 12 to 15). This pretty species is very local, but occasionally abundant in its favourite localities. The Caterpillar (No. 15) feeds upon the Plantain (Plantago major), and appears in September. The Chrysalis remains dormant during the winter, the perfect insect appearing in the following June. It is said to be still found in profusion in its old locality, Monk’s Wood, Hants, and in a wood near Oundle, Northamptonshire ; and many other localities are recorded in which it may be taken in most seasons. ; PLATE XXXI. No, 1.—The Lulworth Skipper Butterfly (Pamphila No. 5.—The Female of the Small Skipper. Acteon). No. 6.—The Small Skipper, showing the Under No. 2.—The Female of the Lulworth Skipper. side. No. 3.—A dark variety of the Lulworth Skipper. No, 7.—The Caterpillar of the Small Skipper. No. 4.—The a Skipper Butterfly (Pamphila No. 8.—The Chrysalis of the Small Skipper. Linea). THE genus Pamphila. The insects assigned to this genus are distinguishable at once from the other Skippers by the conspicuous diagonal line of velvety black which marks the wings of the males ; also by the generally paler colours of the females, and the absence in that sex of the black mark above alluded to. The female of P. Linca has both pairs of wings paler than those of the male. The female of P. Sylvmus has the wings more chequered, as well as paler than those of the male, and the same may be said of the female of P. Acton. There is much less distinction in the colours of the males and females of the other Skippers. In repose the front wings are often held erect, while the hinder pair remains in a horizontal position. Pamphila Acteon (the Lulworth Skipper, Nos. 1 to 3). This rare British insect cannot for a moment be mistaken for the common P. Lincw by an experienced collector, though when I first took specimens of it at Shenstone, near Lichfield, many years ago, being a very young entomologist, I inadvertently placed the specimens in my collection as varieties of P. Linea, not being at that time acquainted with the other species. The Caterpillar is unknown, but, as Mr. Stainton states, the female has been seen to deposit its eggs on the Wocd-reed (Caulamagrostis epigejos). The perfect insect appears in July and August, and with the exception of the speci- mens taken by myself at Shenstone in 1835, (where I have not heard of any subsequent speci- mens being captured,) none have been taken in England except at one particular spot on the coast of Dorsetshire, Lulworth Cove, where it was first discovered by Mr. Dale, in August, 1832. As an entomological prize, it was no doubt pursued there pretty actively by the professional collectors, as I find Mr. Morris stating (in 1853) that it is no longer to be found at the precise part of the coast where it was first discovered, but that it was still plentiful at the Burning Cliff. In 1849, Mr. Douglas found it in great plenty in the last-named locality, where he captured above a hundred specimens in a very short time, often sweeping five or six into his net at once. He states at the same time that he was unable to trace the cause of the appearance of this insect in such numbers at that particular spot, to the abundant growth of any particular plant suitable for the food of the larve. The ground colour of the wings of P. Actcon is much darker than in P. Linea, the bright orange brown of the last-named only appearing in lighter patches in the centre of the fore wings. The female is much lighter than the male, and the wings of a nearly equal tone of orange brown all over, very closely resembling the colour of the female of P. Linea. No. 3 is a curious dark variety of the male, which, except in the general dark colour, approaches very nearly to dark varieties of P. Linca. 62 THE GENERA AND SPECIES OF BRITISH BUTTERFLIES. Pamphila Linea (the Small Skipper, Nos. 4 to 8). This common and pretty species is abundant everywhere at the season of its annual appearance. It often finds its way even into our large populous towns from the neighbouring woods and fields, enlivening the streets with its skipping flight, yet seldom attracting the attention of the boy Butterfly-hunter in the way that a stray specimen of one of the Garden Whites never fails to do, The Caterpillar (No. 7) is said to feed on Grasses ; and possibly also on the foliage of Thistles, as the perfect insects are generally found fluttering in great numbers over places where those plants are abundant. It is found in July. The perfect insect appears in August, being rather later than the rare P. Acteon. Plymouth, Brighton, and Worcester, are places where it has been recently observed in the greatest abun- dance, PLATE XXXII. No. 1.—The Large Skipper Butterfly (Pamphila No. 4.—The Pearl Skipper Butterfly (Pamphila Sylvanus). Comma). No. 2.—The Female of the Large Skipper. No. 5.—The Female of the Pearl Skipper. No. 3.—The Large Skipper, showing the Under No. 6.—The Pearl Skipper, showing the Under side. side. No. 7.—The Caterpillar of the Pearl Skipper. PAMPHILA SYLVANUS (the Large Skipper, Nos. 1 to 3). This species, which is the largest of the British Skippers, frequently exceeds in dimension the specimen for which my figure was drawn. Ihave seen specimens measuring fully an inch and a-half from tip to tip across the front pair of wings. The Caterpillar is described by Zeller as being of a dull green, speckled with black, with a dorsal line of darker colour, and having underneath, on the tenth or eleventh segments, white transverse spots. It feeds on the Meadow Soft-grass (Holcws lanatus), and also on other Grasses, in May ; and probably appears again in the autumn, as the species is undoubtedly double brooded. The perfect insect appears in May and again in August, the early brood resulting from the autumnal hatch of Caterpillars, and the August brood from the Caterpillars, which become full fed towards the end of May. It is very widely distributed, and always more or less abundant, frequenting in preference the borders of woods and shady lanes ; but being also found in open parts of the country. It is perhaps more abundant in the southern than in the northern counties ; Brighton, Plymouth, Teignmouth, and other places being cited as localities in which it has appeared very abundantly. Pamphila Comma (the Pearl Skipper, or Silver-spotted Skipper, Nos. 4 to 7). This is a very local species, but plentiful in places where it occurs. It is distinguished from all the other species of this pretty genus by the pearly or silvery spots by which the under side of the wings (No. 6) are conspicuously marked. It however accords perfectly in general character with its congeners, the male being distinguished by the short black diagonal streak, and the female (No. 5) by the lighter tone of the ground colour of the wings, their more speckled appearance, and the total absence of the black diagonal streak, which distinguishes the anterior wings of the other sex. The Caterpillar (No. 7) feeds on papilionaceous plants, such as Birds-foot-Trefoil, and others of that family. On the Continent it is known to feed on the Coronilla varia. It first appears early in June, and is full fed about the middle of July. The perfect insect is found in August ; frequenting in greatest abundance chalky districts in open or elevated situations. The chalk downs in the neighbourhood of Lewes, Sussex, are recorded as a locality in which it has been recently very abundant. Towards the north it is less plentiful, yet far from scarce in many places, especially at Scarborough, where it is some- times tolerably plentiful. Having now completed the description and illustration of the whole of our Native Butter- flies, it remains only to address a few words to enthusiastic collectors, urging them by diligent 64. THE GENERA AND SPECIES OF BRITISH BUTTERFLIES. observation and research, to endeavour to fill up the lacunze which still exist in the history of the preparatory stages of some of the most conspicuous species. Considering that we can scarcely reckon more than sixty species, and that we have perhaps double that number of good field Entomologists at work every season, (that is about two or perhaps more to each butterfly,) it appears strange that any stage of development of any single species should still remain unknown to us. Yet such is the fact, for we are as yet totally unacquainted with the Caterpillar stage of the beautiful and conspicuous insect, known as the “Small Copper,” and several other species which are equally common and well known in their perfect state. It has been recently stated by one of our most distinguished Entomological writers, that we positively know more of the tranformations of the obscure and minute British Moths, than of those of our conspicuous and beautiful Butterflies. But this remark, though intended as an honest incentive to research, is rather a bold exaggeration ; for while we are ignorant of the larvee and pupa stages of our Butterflies only in a small number of instances, in the case of the small Moths, we know nothing of the preparatory stages of much more than half their number. Mr. Logan, in Scotland, has recently done much to investigate the transformations of some of the species which are in Scotland, and has published figures of the Caterpillars of several, which were not before known. I hope that his successful example may stimulate the exertions of some of our English Entomologists, and that before many more seasons have passed, we shall be able to produce a really “complete” history of our British Buttertlies in all their stages, Hs NE INDEX OF THE GENERA AND SPECIES OF BRITISH BUTTERFLIES. INDEX OF THE GENERIC AND SPECIFIC NAMES OF BRITISH BUTTERFLIES. A. APATURA Iris, 19, 20 Aporia Crategi, 5 Arge Galathea, 11 Argynnis Adippe, 33 », Aglaia, 21 3, Euphrosyne, 35, 36 1» Lathonia, 33, 34 », Paphia, 29 99 elene, 35 (Gy, CHRYSOPHANUS Chryseis, 46 re Dispar, 48 a Hippothoé, 46 3 Phleeas, 45, 46 Virgaureze, 47 Colias Edusa, 3 » Hyale, 3, 4 Ccenonympha Davus, 17 ap Pamphilus, 17 Cyclopides Paniscus, 60 Cynthia Cardui, 21 E. Enopia Hyperanthus, 15 Erebia Blandina, 16 3, Cassiope, 16 pe igedy 15: 10 Euchloe Cardamines, 10 G. GONEPTERYX Rhamni, 2 Grapta C-album, 27, 28 lel HIPPARCHIA Janira, 14 i Semele, 13 3 Tithonus, 14 L. LASIOMMATA /igeria, II, 12 » | Megzra, 12 Leucophasia Sinapis, 10 Limenitis Sibilla, 18 M. MELITAA Artemis, 39 33 Athalia, 38 Cinxia, 37, 38 N. NeMEoBIUS Lucina, 40 Nisoniades Tages, 60 RP: PAMPHILA Acton, 61 rr Comma, 63 oF, Linea, 62 Sylvanus, 63 Papilio Machaon, I, 2 Pieris Brassicee, 6 3, Daplidice, 9 » Napi, 8 ao wkapees 7) Polyommatus Acis, 50 Adonis, 53 A Egon, 55 ” Agestis, 555 56 ” Alexis, 53, 54 3 Alsus, 50 . Argiolus, 49 53 Arion, 51 . Artaxerxes, 58 3 Corydon, 51, 52 a Salmacis, 57, 58 Pyrgus Alveolus, 59 Te THECLA Betula, 41 H Pruni, 41 x» Quercus, 43 >» Rubi, 43 >, W-album, 42 Ne VANESSA, Antiopa, 23, 24 5 Atalanta, 22 ” To, 23 rH Polychloros, 25 3 Urtice, 27 INDEX OF POPULAR NAMES OF BRITISH BUTTERFLIES. A. ArRGuS’s, §55—58 Azure Blue, 49 B. BLACK Hair-streak, 42 Black-veined White, 5 Blues, 49—55 Brimstone, 2 Brown Argus, 55, 56 Brown Hair-streak, 41 Cc. CAMBERWELL Beauty, 23, 24 Chequered Skipper, 60 Clifden Blue, 53 Clouded Yellow, 3 Comma Butterfly, 27, 28 Common Blue, 53, 54 Chalk Hill Blue, 51, 52 Copper Butterfly, 45 Coppers, 45—458 D. Dark Argus, 57, 58 Dark Green Fritillary, 31 Dark Hair-streak, 41 Dark Under-winged Copper, 46 Dingy Skipper, 60 Duke of Burgundy Fritillary, 40 Ins FRITILLARYS, 29—40 G, GATE Keeper, 14 Glanville Fritillary, 37 Grayling Butterfly, 13 Greasy Fritillary, 39 66 INDEX OF THE GENERA AND SPECIES OF BRITISH BUTTERFLIES. Great Cabbage-White, 6 Great Swallow-tailed, 1 Great Tortoise-shell, 25 Green Chequered White, 9, 10 Green Hair-streak, 44 Green-veined White, 7, 8 Grizzle Butterfly, 59 lis HIAIR-STREAKS, 41—44. Heath Fritillary, 38 High Brown Fritillary, 33 L. LARGE Blue, 51 Large Copper, 47—48 Large Skipper, 63 Lulworth Skipper, 61 M. MARBLED White, I1 Marsh Ringlet, 17 Mazarine Blue, 50 Meadow Brown, 14 oO, ORANGE-TIP, 10 P, PAINTED Lady, 21 Pale Clouded Yellow, 3 Peacock, 23 Pearl-Bordered Fritillary, 35, 36 Pearl Skipper, 63 Purple-edged Copper, 46 Purple Emperor, 19, 20 Purple Hair-streak, 43 ©; 4 QUEEN of Spain Fritillary, 33, 34 Rep Admiral, 22 Ringlet Butterfly, 15 Ringlets, 15—17 SCARCE Copper, 47 Scotch Argus, 15, 16 Silver-studded Blue, 55 Silver-washed Fritillary, 29, 30 Skippers, 60—63 Small Blue, 50 Small Cabbage-White, 7 Small Heath, 17 Small Pearl Bordered Fritillary, 35 Small Ringlet, 16 Small Scotch Argus, 58 Small Skipper, 62 Small Tortoise-shell, 2 Speckled Wood, 12 Ab TORTOISE-SHELLS, 25—27 Ws WALL Butterfly, 12 White Admiral, 18 Whites, 5—11 Wood White, 10 INDEX OF FAMILIES AND SUB-FAMILIES OF BRITISH Argyrnnidi (Sub-Family), 29 Erycinide (Family), 39 Hesperidze (Family), 59 Lyczenidee (Family), 41 BUTTERFLIES. Nymphalide (Family), 11 Nymphalidi (Sub-Family), 17 Papilionidze (Family), 1 Papilionidi (Sub-Family), 1 BILLING, PRINTER, GUILDFORD. Pieridi (Sub-Family), 5 Rhodoceridi (Sub-Family), 2 Satyridi (Sub-Family), 11 Vanessidi (Sub-Family), 21 THE BEST METHODS OF PRESERVING BUTTERFLIES AND MOTHS ; AND OF REARING THEM FROM THE CATERPILLAR OR THE EGG. To capture Butterflies and Moths in their perfect or winged state, it is necessary that the collector be provided with a small gauze net, attached to a hoop of strong iron wire at the end of a light cane handle about three feet long. Nets of this kind are sold at Messrs. Gardner’s. in Holborn, and Messrs. Shepherd’s, in the Strand; who manufacture articles of this kind of better quality than can possibly be the result of home fabrication. Boxes lined with cork for securing the insects when taken, as well as many other entomological conveniences, are to be purchased at those establishments, and also at many others of the same kind. The collector will soon find out the hour of the day at which the insects he is seeking generally appear on the wing ; and it is almost useless to seek them at any other. It is also in vain to attempt collecting insects on the wing in a cold easterly wind, especially such as fly early in the morning, or towards the hours of evening. Butterflies, with very few exceptions, will be found more plentiful in the sunny hours preceding, and those immediately following the heat of the day; while for a short period, during the sun’s greatest heat, they disappear for a short time. Some fly principally in half shade of woods and deep lanes, wile others seek in preference the bright open sunlight. Others take their flight high above the tops of the lofti- est Oaks, as the Purple Emperor, and these must either be secured by means of a small light net at the end of a very long rod, or some little stratagem must be had recourse to in order to effect a capture. I recollect an experienced Lepidopterist telling me that he took his two finest specimens of the Purple Emperor in an Oak wood, rather late in the day, after a morning of fruitless attempts, by watching the trunks of the trees as a storm was coming on. He had heard that these insects, on the approach of a storm, descended from the region of their lofty flight to seek shelter on the trunks and beneath the lower branches of large trees ; and as the sky darkened, and the thunder began to rumble in the distance, he found that his information had been correct, for he perceived two magnificent specimens descend with a swoop, and settle upon an old gray trunk close to him, where he was so fortunate as to capture both. As an example of what an earnest collector may expect in an excursion of a few days, even without much experience, I append a letter received this season from a young collector, in which it will be seen that, as far as Purple Emperors are concerned (from knowing a good locality to go to), he was by far more successful than my friend of the thunder-storm ; and his other captures form a very tempting list. “T captured on Friday last, in St. Osyth Woods, Essex, a very fine specimen of Vanessa Antiopa ; the borders of the wings are a rich cream-colour, the points of the upper wings are slightly marked with blue. I took it off a bramble. I also took at the same place a female specimen of the Large Copper (Chrysophanus Dispar). In the neighbourhood of this place (Monk’s Eleigh) and Savenham, I have found this summer a greater number of varieties than usual ; amongst others, Chrysophanus Phlwas (female); C. Virgauree ; Thecla W-album ; Meliteea Cinaia ; Argynnys Adippe; A. Lathonia ; A. Paphia ; Grapta C-album ; Vanessa Urtice ; Cynthia Cardui ; Apatura Iris (of which I also took thirty at St. Osyth) ; Limenitis Sibilla ; Arge Galathea ; Leucophasia Sinapis ; Papilio Machaon ; Colias Hyale (two taken this morning) ; and Aporia Crategi. The Vanessa Io is extraordinarily numerous this year, as much so as Pieris Brassice.” To take Moths on the wing, other devices must be had recourse to ; a few, it is true, fly by day in the bright sunshine like Butterflies, but by far the greater number take their flight at early dawn, in the dusk of the evening, or during the successive hours of the night, each species having a special-period of activity, from which it does not depart. The following are a few of the species which may be attracted, in succession, by a lighted candle. Pheosia Dictwa, popularly called the Swallow Prominent, may be easily distinguished ; in its fitful flight when agitated by the candle, this insect continually darts towards the ground, 2 METHODS OF PRESERVING BUTTERFLIES AND MOTHS. and is lost in the darkness, soon again to appear glancing swiftly past the light, and then down- ward into the shade, as before. Agrotis corticea, the Heart and Club Moth, is less fleet on the wing than the preceding, and instead of flying downwards towards the floor, invariably rises towards the ceiling, attracted apparently by the mild white light by which itis pervaded. — Cos- mia Pyralina (the Lunar-spotted Pinion Moth), if it enter a room attracted by the light, is very wild and irregular in its flight, dashing from the candle to the ceiling, and from the ceiling to the flocr. Though this insect is by no means common, I have taken it more than once in a lighted room, always, I believe, on a rainy evening, and towards the end of July. Clisiocampa Neustria, the Lackey Moth, is as abundant as the last described species is rare, and yet it is seldom seen in the perfect form, as it is a swift night-flyer. This moth, on entering a room, attracted by a light, has the same wild flight as the species last described, and is rather difficult to capture, even with the aid of a proper net. Later in the season may be taken Petasia Cassi- nea, popularly known as the Sprawler, which, like the last, is much more rare in the winged state than in the Caterpillar stage of its existence. It is, however, often attracted by a light, when its flight becomes random, dashing heedlessly on all sides through the flame of the candle up to the ceiling, or down to the floor. This species seldom appears before November, and is often found as late as December. It is late in the hour of its flight, as well as in the season of its appearance, often retarding its visit to the expectant candle till one or two in the morning. Still later in the year appears the remarkably elegant December Moth, Pwecilocampa Populi, which is easily attracted by light, and, if any be in the neighbourhood, they will make their appearance between the hours of seven and ten on favourable evenings. Sitting in a well-lighted room, with the window open to the dark garden, a watcher, active with the net, may capture in succession many species in a single night. But before the shades of evening have sunk into darkness, the collector should have perambulated, net in hand, the most shady walks of his garden, beating the shrubs with a stick held in his left hand ; when he is sure, at the right season, to meet with the male Ghost Moth, flitting white and bright before him, and then vanishing as suddenly, as the dark under-side of the wings meet the eye instead of the snow-white upper surface. Then there will be the Phantom Moth, like the miniature skeleton of some delicate insect, haunting the spot where it had once flitted in more substantial shape. This is the “ White Plume,” sometimes called the Skeleton Moth. These and many more rare and handsomer species will reward persevering pursuit on a favourable evening. A very successful method of capturing night-flying Moths, is that of tempting them to settle in a certain spot by a bait of sugar. The sugar is reduced to a thick solution by the addition of water, and then brushed upon the trunks of trees, old palings, &e., in favourable situations. The baited spot must be visited once an hour or so, or the insect may have paid the visit, and again taken to flight. Some collectors place a light near the sugared trees as an additional attraction, and some add a large white sheet behind the sugared trees, upon which the light should be made to fall as brightly as possible. At dawn of day, on a fine mild summer morning, some of the rarer Sphingide may be taken fluttering over their favourite flowers. I took a magnificent specimen of Sphina Convol- vuli hovering over a bed of Petunias, this season. The preservation of insects thus taken is very simple, and the best methods are perfectly known to all experienced entomologists. But Iam writing for those who are at present with- out such experience. The Butterfly or Moth, while still in the net (which should be allowed to lie close together, so as to prevent as much as possible the movement of the insect), should be taken hold of by the thumb and finger underneath the chest, and suddenly pinched with some little force, which immediately destroys all sensation. It may then be dropped lightly from the net, so as not to injure the delicate scales of the wings. An entymological pin* must then be passed through the thorax from the upper side, between the wings, in a perfectly upright position, passing through to a sufficient extent to allow of the insect being firmly pinned to the bottom of the cork-lined box. The same process will be followed in all subsequent cap- tures, taking care not to place the specimens too close together in the box. Some collectors put each insect, if a particularly fine specimen, or very rare species, into a * Pins that do not corrode, and which are sold by all vendors of collecting apparatus. METHODS OF PRESERVING BUTTERFLIES AND MOTHS, 3 separate box, touching the bottom of it with a single drop of chloroform, which has been found to prevent any return of sensation, or any fluttering of the wings by which their beauty might be seriously injured. On arriving at home, the insects should be carefully set out in the.form they are intended to retain permanently, and this should necessarily be done before the insects finally stiffen, or it becomes difficult to manage them so well, though an exposure to the steam arising from a cup of hot water will generally restore a temporary limpness. The process of “setting out” must, of course, be done with neatness and care, so as not to injure the wings, or break the antenne. A board covered with a coating of cork must be provided, in which there are grooves running across of greater or lesser depth. The insect may then he fixed by the pin into the groove ac- cording to the thickness of the body. The body of a Butterfly being generally small, the groove need not be deep. The wings are then to be spread out on the hoard on either side, level with the body and fully expanded. They are to be fixed in that position by means of strips of thin and very smooth cardboard, pinned down over them sufficiently close to hold them in the posi- tion required, but not so close as to injure the delicate scales of the wings. In a few days the insect will have stiffened in the position in which it has been fixed as described, and which it will permanently retain. It should then be removed to the cabinet in which it is to be pre- served. In order to preserve the specimens in a cabinet from the attacks of minute parasitic insects, a small piece of camphor is generally fixed in the corner of each drawer. If what is called the grease should attack the insects in a cabinet, the best mode of restoring the insects attacked to their original condition is the following. The grease generally appears in large- bodied Moths or Butterflies, giving the bodies the appearance of having been soaked in oil ; and this appearance soon spreads to the wings, utterly destroying the beauty of the specimens. To restore an insect thus attacked, fix it on a piece of cork weighted with lead, or something heavy, and place it at the bottom of a saucer or any similar vessel. Then fill the saucer with benzone,* entirely covering the insect, which will not be injured by the wetting. After five minutes it may be taken out, and the benzone, being an absorber of grease, will carry off the oily matter in the course of its own evaporation, which is very rapid. The insect will then become as beautiful as when first “set out,” and may be replaced in the cabinet. The collection of Caterpillars may be commenced as soon as the leaves begin to appear, and may be continued till the end of September or October, as there are many double-brooded species, the second hatch of Caterpillars of which appears about the time last named, Chrysalides of which remain dormant through the winter. Detached trees may be well shaken after a white table-cloth has been spread beneath, and a number of Caterpillars, difficult to discover in any other way,may thus be secured. Hedgerows may be beaten over an inverted umbrella for the same purpose. A careful search among low-growing plants will, however, be necessary to secure other species, and a plant that exhibits symptoms of having been eaten by Caterpillars, should sometimes be pulled up by the roots, and the root well examined, as the night-feeding Cater- pillars often take shelter beneath the surface of the soil during the day, and conceal themselves among the loose roots ; or they may sometimes be found hidden among the decayed leaves about the base of the main stalk of the plant. The Caterpillars of most of the Meadow brown Butter- flies and many Moths, are grass-feeders, and yet meadow after meadow might be looked over in vain for a single larva, as in almost all cases they belong to the night-feeding class just alluded to. The truly magnificent Caterpillar of the Sword-grass Moth is, doubtless, a night-feeder, which accounts for its seeming rarity, few specimens having been seen by Entomologists. The Caterpillars that feed within the stems of plants, all belonging to the Moth family, are still more difficult to find, but their internal ravages may generally be traced by the paler or yellower green of the branch or stem, the sap of which is being consumed by an intruder ; and on opening the branch he will be discovered at work ; but it is better to leave him till his full growth is attained, marking the stem in some way so as to recognise it easily. The Leaf-rollers, Leaf- miners, and Bark and Lichen-feeders, and those that feed in cases—concealed like those of the Caddis-worm in particles of decayed wood or dead leaves, will have to be looked for very care- * This remedy was first mentioned in a very charming little periodical, entitled “ Recreative Science,” which is always full of useful information. 4 METHODS OF PRESERVING BUTTERFLIES AND MOTHS, fully. When a Caterpillar or a brood of a gregarious kind has been discovered, it is better to leave them on the branch or plant of their own selection—covering it securely with a piece of gauze—than to attempt their removal. But if at adistance from home this would be impractic- able, and in that case a “rearing cage” or box must be prepared. This is easily managed. A strong box, about two feet long by one broad, should be sunk to about half its depth in the ground in some sheltered part of a garden ; the lid is to be of wire-tissue such as meat-safes are made of, and above it is to be a sloping board or roof to shoot off the rain. The box is to be about half-filled with broken bits of tile and garden mould, partially covered over with moss. The food for each kind of Caterpillar placed in the box should, in order to keep it fresh, be placed in a glass phial of water in the box ; and in addition to this precaution the food should be changed every day. If, however, the food be changed every day, the bottles of water may be dispensed with in most cases, though they are always of advantage. In a box of this kind, so placed, the Caterpillars have the advantage both of open air and shelter; and they either burrow in the ground at the bottom to undergo their change, or suspend themselves to some branch which should be fixed for that purpose ; or they attach themselves to the sides of the box. Care must be taken to watch the box carefully at the time when Moths or Butterflies are expected to emerge from their chrysalides, as they would otherwise, when prepared to take flight, beat themselves against the wire lid and injure their wings. I have described boxes of this kind at much greater length in the “ Butterfly Vivarium.”* The eggs of Butterflies and Moths may also be placed in this rearmg cage, where they will hatch themselves at the proper season, and if the proper food be provided for the young brood of minute Caterpillars, they will thrive well. The eggs of Moths and Butterflies may be found by watching the under side of leaves, &c. ; when a mass of small and nearly spherical objects, somewhat less than a pin’s head, are observed attached together on a leaf, placed in straight or diagonal rows with geometrical regularity, it may in most cases be taken for granted that they are the eggs in question. They are sometimes found in rings, encircling branches of shrubs, like double or treble rows of beads. But the collector will soon have an eye to perceive and recognise his game under very varied aspects and circumstances. Besides this mode of collecting the eggs, there is another. Almost every female Moth or Butterfly that is captured, will deposit its eggs before dying ; indeed, it appears almost impossible to extinguish life in the female in- sect till this main object of its existence—the deposition of its eggs—has heen effected. Rare and beautiful Caterpillars may often be raised in numbers from the eggs of a captured Moth, which it is difficult to procure in any other way, their natural haunts and habits being unknown. The great advantage of rearing Moths and hatching Caterpillars in this way is—first, that the specimens of the winged insect are necessarily much more perfect than those captured during their flight ; secondly, that the Caterpillars of some kinds of Moths are very common, while the Moth itself is rarely seen, and can only be procured by rearing it from the larva ; thirdly, that some larvee may be obtained in this way from the egg which are, as stated above, seldom other- wise seen. I succeeded in procuring some magnificent specimens of the Death’s-head Moth from the Caterpillar in a rearing cage of this kind. But an amateur Entomologist writes me that for this species his own method, as follows, is better :—‘ Last year I took three Caterpillars of the Death’s-head Hawk Moth ; one I kept in dry earth, one in a box buried in the garden, and one in a box in my study, which I regularly watered twice a week: the last succeeded admirably, it emerged in March ; the two others appeared in the beginning of May, and were almost worth- less.” The eggs and chrysalides of many fine Continental species not found in England, may be procured at Mr. Gardner’s, No. 52, High Holborn—such as the Great Emperor Moth, the hand- some Butterfly Papilio Podalirius, and others. I have found great amusement and interest in rearing some of the finer Continental Lepidoptera in this manner, and then letting them fly in my garden, where they have sported for several days, and then disappeared ; for it does not seem possible to naturalise any new species in this way. Confined to a greenhouse they might, however, exist through several generations, forming a great additional ornament, and giving quite a new source of interest to an ordinary Conservatory. HN. H. * Now published by Mr. Bohn, Henrietta Street, Covent Garden. See = acre See