EVERES ARGIADES. 



83 



with slightly flattened sides ; a very shallow dorsal furrow, bordered 

 on each side by a fringe of spinous bristles, slightly serrated and vary- 

 ing in length ; the whole surface densely studded with shorter, but 

 similarly -formed, bristles, varying in length, and in colour from white 

 to pale brown ; each, including the longest dorsal ones, having won- 

 derfully formed bases, similar to but more pronounced than those in the 

 previous stages, composed of a bulb-centred star, the points rising 

 from the base ; some are wholly white, others olive-green ; there are 

 also numerous shining whitish-green discs, outlined, or set in black 

 rings more or less starred, of various sizes, and scattered over the 

 whole surface ; the spiracles are whitish, outlined with brown, and the 

 inner edge dentated ; the gland on the 7th abdominal is similar to 

 that in the previous stage, being a small elongated transverse fissure, 

 and fringed with fine white bristles, as described ; although so similar 

 in formation to the gland of Lycaena avion, no fluid has yet been detected 

 issuing therefrom, it also appears to be less sensitive to irritation. On 

 the 8th abdominal is a subdorsal, partly retractile, whitish tubercle. 

 The ground colour is pale green, with a darker green mediodorsal 

 stripe, and oblique side stripes of a fainter green ; in some individuals 

 the lateral ridge is tinged below with pinkish-brown. Head black and 

 shining, hidden under the overlapping prothorax, except when ex- 

 truded while feeding and crawling (Frohawk). Filial instar : The 

 green larva has a darker (reddish) lateral line, and is well clothed with 

 hairs ; these are longer dorsally (on the dorsal flanges or ridges) 

 0.2mm., and laterally (lateral flange) 0-3mm., and a few 0*4mm. long, 

 finely spiculated, very slightly curved, and tapering fairly regularly ; 

 their bases are nearly twice as high as broad, and possess 3 to 6 — 

 usually 4 or 5 — lateral processes, with star-like effect ; these processes 

 are conical, sometimes a little blunt, and about as long as the thick- 

 ness of the base (OOlmm. to O02mm.). The hairs and bases vary 

 less than is usual, chiefly in size. There are also many lenticles, like 

 hair-bases, with wide open tops, and shorter and more numerous 

 (usually 5 or 6) star-like processes, and, perhaps, less high than the 

 hair-bases ; these are generally scattered, but more numerous along 

 the incisions and near the spiracles. The honey- gland" has a tolerably 

 continuous row of them round its margin. The fan on the 8th 

 abdominal segment (when retracted) is a bare circle, surrounded by a 

 few rather longer hairs. The black head is large (0*8mm. across). 

 The prothoracic plate is of diamond-shape, long diameter 0-4mm., 

 transverse, 0.6mm.; its hairs and lenticles seem much like those of 

 the rest of the surface, except that, towards each angle, there 

 is the rather large, da.rk, circular base, and the curious hair 

 special to this situation. The spiracles are large, only slightly oval 

 (0*07mm. to 0*08mm.) There is the usual long extensile "neck," 

 longer than head. This neck is required not only for the protrusion 

 of the head in burrowing into pods, buds, etc., but also for the extreme 

 retraction of the head into the prothorax. The true legs are dark, 

 rather long and stout (0-4mm. long), tapering so as to give rather an 

 oval than conical outline. Each pad of the prolegs (two to each as 

 usual) possesses eight to ten very pale, rather long, slender hooks 



* Although the honey-gland is noted both by Frohawk and Chapman, we 

 believe that the actual association of the larva with ants has not yet beeD chronicled. 



