348 BKITISH BUTTERFLIES. 



they are, therefore, probably collapsed. They have bases like the 

 ordinary hairs, except that they are narrower above and at base, so that 

 the rather smaller spicules stand out markedly as a somewhat projecting 

 ring ; the hairs themselves are very short, about as high as the bases, 

 and are calyciform, somewhat like a convolvulus -flower ; when best 

 seen they are margined by a set of very fine spicules, the upper part of 

 the globe probably exists, but fallen down into the cup, being, there- 

 fore, of much softer tissue than the cup-shaped portion. Further 

 back are more similar hairs, if we assume that here there is no 

 collapse, the hair having an expanded top, curved away, however, to 

 one side or another ; further back are also some much larger, half as 

 large again, lenticles, comparatively slender hoops ; other lenticles are 

 high tubes, with margins incurved from the (faintly- marked) line of 

 spicules, and the central dotted membrane convex ; all these forms of 

 hairs and lenticles, varied by excess or defect, are accompanied by 

 intermediate forms, and are mixed in different proportions, making- 

 most marvellous combinations. The true legs are about 06mm. long, 

 the three joints and claw being in proportion about 1:2:3:1, the 

 claw being small compared with that of the early ihstars ; the width of 

 the joints are as about 3:2:1, very nearly in 01mm. ; each joint 

 carries several hairs, apparently unspiculated. The prolegs have two 

 pads, each with 13-17 hooks, the alternate hooks slightly varying in 

 size. The skin-surface is covered by fine rounded points ; on the pro- 

 thorax, at least, these vary to fine spiculations, and, in places, to a 

 pavement-epithelium network. Some of the hairs in this prothoracic 

 region have smooth, egg-shaped bases, and shafts with almost evanes- 

 cent spiculations (Chapman). Of the spiracles, Guenee notes (Ann. Soc. 

 Ent. Fr., 4th ser., vii., pp. 665-666) that, "instead of being placed 

 laterally along the usual stigmatal line, they are placed much higher, 

 and almost on the back, so that the 9th, which, as one knows, is 

 always placed above the line in question, and not in line with the pre- 

 ceding eight, is here placed absolutely in the same line ; but this 

 disposition does not belong exclusively to this species, for the larvae of 

 other Lycaenids, show it equally ; further, other larvae of similar form, 

 in which the dorsum is semi-ovoid and the venter flattened, also show 

 more or less this abnormal situation of the stigmata ; at least, I can 

 affirm this to be so in the larvae of the European Limacodids." 



The eversible and honey glands of the larva of Lampides 

 bceticus. — On the middle of the dorsum of the 7th abdominal segment of 

 the larva of this species is a gland that secretes a sweet fluid beloved by 

 ants, whilst, on either side of the 8th abdominal segment, is an 

 evaginable tentacular organ supposed to be used for attracting ants to 

 the larva (see preceding volume, pp. 30 et seq.). These structures 

 were figured and described at length by Guenee as they exist 

 in the species under review. He writes (Ann. Soc. Ent. Fr., 

 4th ser., vii., pp. 665-668) : " The three terminal segments of 

 the larva of L. boeticus appear to be united in one mass, and, instead 

 of the usual well-defined segmental incisions of other larva 3 , found 

 also on the front segments of this, one can only detect with a 

 lens, two slight irregular folds, which denote feebly their 

 separation, whilst the circular ring of spiny hairs, which adorns 

 the anterior incisions, is altogether wanting on the three terminal 

 segments. Evidently all lateral flexion is impossible in these three 



