266 BRITISH BUTTERFLIES. 



further out. Two rather shorter below and in front of this, and two 

 fine hairs (not more than O-lmm.) at base of legs, there is a small 

 lenticle a little way in front of spiracle. On the mesothorax are (on 

 each side) two hairs towards the hind margin, being like the i and ii 

 of following segments ; in the front of the segment, dorsally, are two 

 very big hairs on each side (nearly 03mm. long) with a lenticle 

 between them. Between these dorsal hairs and the two small ones at 

 base of legs are five hairs (about 0-13mm.) representing the circum- 

 spiracular set (iii, iv, v). Metathorax has i and ii and a large 

 lenticle below them just like the abdominal segments, a long hair 

 (0*1 6mm.) in line with iii (?) of following segments, three hairs just 

 like the subspiracular (flange) set of the abdominal segments, and the 

 two fine hairs at base of legs. 



First abdominal is the same as this, except that it has (on 

 one side, as has already been noted) a small hair behind iii (?) 

 and a second lenticle just below the upper one and above (and 

 between) these two hairs. There is only one hair corresponding 

 to the two at base of legs on thorax, there are also two minute 

 ventral hairs. The further abdominal segments are the same, except 

 that the hairs at base of legs are two on 3rd, 4th, 5th, and 6th segments, 

 and that there is a lenticle just above them on 2nd and 6th. i is a 

 very big and strong hair (0'3mm., or nearly), curved in a backward 

 sweep and giving the special crested appearance to the larva ; ii is a 

 short hair (hardly above O-lmm.) just behind and outside it. 

 Accessory iii is very short (O04mm., or less), curved and blunt, almost 

 clubbed, quite different in character from the other hairs ; (in many 

 Lyeamids both these hairs are of this character) ; 7th abdominal 

 appears to be without the sub-dorsal lenticles, but has one in place of 

 ii; (of course, ii may be wanting, and this lenticle one of the sub-dorsal 

 ones pushed up) ; 8th has a long dorsal hair and a lenticle at its base, 

 in front of and outside it. The anal plate is small (O'OGmm. across), 

 with a minute point towards either side like an obsolete hair-base. As 

 marginal hairs behind 8th segment are (on each side) seven hairs, of 

 which three are long ones. The anal margin has very strong sharp 

 skin points. Many of the lenticles are much larger than the spiracles, 

 those, for example, on dorsum of 7th abdominal are twice the diameter 

 of the spiracles. The spiracles are noteworthy as having four rays or 

 processes equally spaced, on their outer margins, nearly a fourth of 

 the diameter of the spiracle in length. Second instar: The larva 

 is still a pale greyish scrap, with bluish prothorax, largely due to black 

 head included. The hairs are less long in proportion but more 

 numerous. Seen from above, the larva is widest at thorax, and 

 diminishes in a regular conical manner to last segment, where it is 

 rounded, the width at 8th segment being about half that of the thorax. 

 There is a darker dorsal line (vessel), and the lateral flanges stand out 

 whiter, whilst there are some intermediate markings as of a faint 

 brown shading — length barely 2mm. September 23rd. — Laid up for 

 2nd moult; length 2 a 8mm. ; faintly yellowish-green, nearly white; 

 darker tone of prothorax barely noticeable, faintly darker dorsal line 

 and paler lateral one. Spiracle small, nearly black, a number of black 

 points (hair bases) on slopes, dorsal crest of hairs still marked, as well 

 as lateral fringe ; has spun a very definite carpet for moulting on. 

 There is faintly discernible a paler dorsal line on flanges on either side 



