GASTROPACHA ILICIFOLIA. 195 



ment, whilst behind it, and continued from the dorsal area, are some stift 

 red-brown bristles on the prominent part of the segment, which (bristles) 

 end a little ventrally to the spiracles. Dorsally ; Everything is hidden 

 by the fluffy material (larval hairs, &c.) in which the pupa appears to 

 be almost enveloped. The prothorax covered with long stiff bristles 

 projecting frontally ; the prothoracic spiracle more conspicuous than 

 when viewed laterally ; the mesothorax not very swollen, plentifully 

 supplied medially also with long, stiff, red-brown bristles which 

 stop short at the base of the wing ; the metathorax plentifully supplied 

 with bristles medially, but without bristles laterally ; at the base, 

 in contact with the hind wings, the ist and 2nd abdominals are very 

 slightly depressed ; these segments are narrow, plentifully supplied 

 with bristles medially, and above and behind the spiracles ; the 3rd, 

 4th, 5th, and 6th segments are raised posteriorly, and the bristles form 

 a regular ring on the raised margin of these segments extending on 

 either side behind and for a short distance lower than the spiracles ; the 

 7th and following segments are more plentifully supplied medially, but 

 still on the posterior portion of the segment, whilst the anterior 

 portion of these segments (comparatively smooth on abdominal 

 segments 4 — 6) is somewhat roughened ; anal area rounded, 

 with dark recurved hairs* mixed with the shorter brown ones, the 

 whole forming a very serviceable cremaster (Tutt. Described 

 March 10th, 1896, from pupa sent by Voelschow), $ pupa. 

 Length 19mm., greatest width 8mm. Has a marked Lachneid 

 outline (taking the pupa of Malacosonia neustria as being 

 rather typical) in so far that the greatest diameter is at the 

 4th abdominal segment ; 5th and 6th are each smaller, not 

 so much by tapering as by each being, though itself cylindrical, 

 smaller than its predecessor, and as if capable of telescoping 

 into it; 7th still smaller and tapering notably ; 8th more cylindrical, 

 followed by 9 and 10 tapering rapidly into a blunt round extremity, 

 incision 7 — 8 thus looks very narrow, and the whole of the abdominal 

 segments are slightly curved forward. The tapering forward from the 

 4th abdominal segment is less marked, especially seen laterally, 

 till the thoracic segments are reached. The pupa is dark brown, surface 

 a little rough, but, like those of many Lachneids, its minute characters 

 are obscured by a felting of larval hairs entangled amongst the bristly 

 hairs with which the pupa itself is freely covered in various aspects. 

 The antenna-, leg- and wing-cases are free from hairs, and have a 

 finely granulated surface. These pupal hairs are short, stiff, straight, 

 little bristles, a group of which, in two divisions, occupies the antenna- 

 basal region. The prothoracic and mesothoracic segments on dorsum 

 are well covered by them, slightly porrected, so that they look as if 

 they had had a good brushing forward, but, being very stiff, had fairly 

 resisted it. It would perhaps be correct to say that the abdominal 

 segments are wholly clothed with hairs. These are, however, 

 only noticeably long at the posterior dorsal margin of each 

 segment, extending less markedly laterally, but still very ob- 

 vious on the 5th, 6th, 7th, and Sth abdominal segments, and 

 on the 5th there are some very distinct but shorter ones 



* The cremastral hooks are absent in the pupa of E. quercifolia, being 

 replaced bv simple bristle-like hairs. Allowing for the difference in size, the hairs 

 are much coarser and larger in G. ilia folia than in E. quercifolia (Bacot). 



