330 NYMPH ALID^. 



Antennce not quite half the length of the fore wings, slender, terminated by a long and gradually formed, but 

 slender club, finely carinated beneath; the seven terminal joints gradually acuminated. 

 Thorax very robust and woolly. 



Fore Wings large, subtriaTigular. Fore margin very much arched ; apical angle acute. Apical margin generally 

 straight, rather more than two thirds of the length of the fore margin ; hinder angle rounded. Inner margin 

 straight, of the same length as tlie apical margin. Costal vein extending nearly to seven eighths of the length 

 of the costa ; a small oblique veinlet unites it with the costa, at about three fourths of the lengtii of the wing, 

 and another similar veinlet extends between it and the costa, close before the junction of its extremity with the 

 costa. Postcostal vein witli its first branch uniting with the costal vein near the middle of the latter ; second 

 branch of the postcostal forming a very sliglit oblique veinlet, between the postcostal and the costal, at about 

 the length of three fourths of the wing ; third and fourth postcostal branches arising close together at the 

 length of seven eighths of the length of the wing, the third extending to the tip, and the fourth below the tip. 

 Upper disco-cellular almost obliterated, as well as the middle one ; lower disco-cellular much longer, curved, 

 oblique, uniting with the third branch of the median at some distance from its origin, closing the discoidal 

 cell in an angle before the middle of the wing ; third branch of the median vein curved. Submedian vein 

 straight, except at the base. 



Hind Wings subtriangular ; those of the females more evidently angulated in the middle of the hind margin, at 

 the extremity of the third branch of the median vein. Precostal vein short, straight ; tip curved suddenly 

 towards the body. Costal vein reaching nearly to the outer angle. Postcostal arising from the costal 

 considerably nearer to the body than the precostal, Discoidal cell open. 



Fore Legs of the male small, very hairy, so as almost to conceal the articulation of the tarsus with the tibia. 

 Fore Legs of the female scarcely longer than those of the male, less hairy. The tarsus about two thirds of the 

 length of the tibia, clothed with scaly hairs concealing the articulations, the first of which occurs somewhat 

 beyond the middle of the tarsus ; second, third, and fourth joints short, transverse ; the fourth and fifth armed 

 with very minute spines beneath, and several long setas above. 



Four Hind Legs moderately long and robust. Tibia3 and tarsi strongly spinose beneath. 

 Abdomen of moderate size. 



Lar va long, cylindrical, with hairy tubercles ; extremity of the body armed with two small conical spines. 

 Chrysalis broadly boat-shaped, simple, widest across the wing-cases; head-piece acuminated into two 

 long points ; under a lens the whole surface is found to be delicately transversely wrinkled. 



This fjenus is closely allied to Amatliusia and Zeuxidia, not only in its transformations, as ascertained by Dr. Horsfield in Java, but 

 also in the arrangement of the veins of the wings ; in fiict, the identity with Zeuxidia in the latter respect is carried so far, as to extend 

 to the very delicate veinlets apparently connectinj; the costal vein with the costa, and the postcostal vein with the costal. Hence, I 

 have not thought it necessary to mention again the real homologies of these veinlets. In like manner, the general style of colouring is 

 very similar between the females of these genera. At the same time, it cannot be denied that the genus Enispc, illustrated in our 

 40th plate, is so closely related to Discopliora, as perhaps more properly to constitute a section of the latter genus ; from which it 

 differs, however, not only in wanting the oval silky patch in the middle of the hind wings of the males, but also in the want of the second 

 branch of the postcostal vein.* 



This genus offers, in its transformations, another of those curious instances, which appear to me to indicate analogy, concealed under 

 an apparent affinity. As in Apatura, tlie larva has the extremity of the body terminated by two small conical tails. This is also the 

 structure of the larva of the typical Satyrida3. I cannot, however, in this single character, discover sufficient ground for uniting 

 Apatura and Discopliora in the same family as Satyrus, the general structux'e of which, both in the larva and imago states, indicates 

 great weakness in their locomotive powers ; whereas these genera evidently are as powerful in their flight as any of the most robust of 

 the Nymi)halida3. I cannot but think, also, even in respect to the larva state, that the relationship of these genera with Satyrus is a 

 forcing of nature, and that there is as great a difference between the soft villose caterpillars of the Satyri, with their rounded entire 

 heads, and the caterpillars of Apatura, Discophora, Amathusia, and especially Morpho, as there is between those of the Satyri and the 

 more typical Nymphalid;e. 



The researches of modern anatomists have also completely overturned the distribution of the apterous insects of Linnaeus pro- 

 posed by Mr. Macljcay, on the progression of which, and the analogies thereby afforded with the caterpillars of butterflies. Dr. 

 Horsfield founded his arrangement of the Diurnal Lepidoptera; whilst we are now acquainted with many Thysanurous insects which 

 are destitute of a forked anal appendage ; so that, on these grounds, I feel the less regret in disturbing the arrangement proposed in 

 the Descriptive Catalogue of the Lepidopterous Insects in the Collection of the East India House ; the development of which has, 



* In the description of the fore wings of Enispe (ante, p. 292.) it should have been stated, that the costal vein apparently extends to five sixths of the 

 length of the costa, with which it is also united at about three fourths of the length of the wing by a very slender oblique veinlet. This veinlet, according 

 to my view of the homology of these veins and their branches, is the real termination of the costal vein, the portion of the apparent costal vein which extends 

 beyond it being the real termination of the first postcostal Ijranch, which has, for a short distance, anastomosed with the costal vein. 



I take this opportunity of describing a new and beautiful species of Enispe recently obtained by Mr. Hewitson from Silhet, which, although agreeing 

 much more nearly in its colours with I)isco|iliora, has the peculiar arrangement of the wing veins of Enispe (wanting the second branch of the postcostal 

 vein of the fore wings); the disc of the hind wings is, however, clothed with a wide and dense coating of long hairs, thus approximating to the silky oval 

 patch of the Discopliora. 



Enispe Cvcnus Westw. nov. sp. AUs supra fusco-nigris, anticis fascia abbreviata obUqua Ulacino-alba e medio costte extensa, postice in seriem lunularura 

 latarum ejusdem coloris cum margine apicali parallelam terminata, serieque altera subapicali macularum angulatarum magis albarum ; alls posticis ad angulum 

 analem acutis, maculis rotundis subapicalibus lunulisque quinque marginalibus subpiceis; alis omnibus subtus obscure fulvis, fascia media subdentata, alteraque 

 niulto angustiori et magis irregulari inter basin et meilium, liturisque variis fuscis ; pone me<lium obscurius nebulosis, lunulis obscuris submarginalibus. 

 Expans. alar. unc. .3|. Silhet. 



