LIFE-HISTORY OF HESPERIA PANISCUS. 103 



now of a greyish-blue-green ground-colour, some being yellowish- 

 green ; pale brownish heads, reticulated with very dark brown on 

 top, and appearing roughened ; ocelli black, as also posterior 

 edges of cheeks; a dark spot on top of second segment, and a 

 dark dot immediately above spiracle on this segment. These 

 dark markings appear to have taken the place of the shining 

 black plate on anterior margin of second segment which were on 

 the larvae when they emerged from the egg. There is also a 

 dark brown longitudinal blotch on top of anal flap. A dark 

 medio-dorsal greenish stripe is continuous throughout to blotch 

 on anal flap, and this stripe is edged on either side with lighter. 

 There is a conspicuous sub-dorsal pale whitish-green band, 

 edged above and below with dark green; spiracles roundish and 

 of a pale rust-colour ; legs brownish and semi-transparent ; clas- 

 pers and ventral area of uniform ground-colour. Larvae cylin- 

 drical, with a little taper to both extremities, aiid the second 

 segment is remarkably small ; head oval and full ; segmental 

 divisions clearly defined ; larva bears numerous minute hairs 

 generally distributed. Immediately above spiracles is a band of 

 darker green than ground ; anal flap rather pointed and rounded ; 

 claspers fairly large ; legs moderate size. When out of retreat 

 and disturbed larvae fall to the ground and curl into a ring, 

 sometimes remaining a considerable time in this position with- 

 out any movement. Having been transferred to a freshly 

 potted food-plant, they were not disturbed again until September 

 7th, when the sleeve was again opened, and the larvae being 

 found to be full-fed, a careful drawing was made. They were 

 about one inch long and in many ways quite different to the 

 stage last described, the most notable being the absence of the 

 brown head with its darker markings, and the absence of any 

 dark on the anal flap or anterior margin of second segment. 

 Head oval and full ; general form cylindrical, with taper to both 

 extremities ; second segment remarkably small; segmental 

 divisions clearly defined; spiracles roundish; legs and claspers 

 rather small ; anal flap pointed and rounded, and a little concave 

 on dorsal area ; segments three and four are transversely wrink- 

 led, and segments five to eleven are each transversely wrinkled 

 in five rings, the anterior being much the widest, the second 

 smaller, and the last three smaller and of uniform width ; segment 

 twelve is transversely wrinkled in four rings. Markings : Sur- 

 face dull and of a uniform greyish- blue-green ground-colour, 

 sometimes the tinge inclining to yellowish-green. They have a 

 somewhat velvety-looking appearance, probably due to being 

 clothed with very short and minute hair. Head pale brownish 

 or pinkish-green with black ocelli, and a thin dark line down 

 centre ; clypeus of ground-colour ; labrum and mandibles pale 

 brownish or pinkish, the mandibles being dark brown at centre. 

 There is a pulsating medio-dorsal stripe of darker green than 



