126 
NYMPHALIDAE 
When fully grown, the larva measures 25 mm. long. The 
ground colour is velvety-black, each segment is encircled with 
a row of pearl-white dots and there is a similar row down 
each segmental division ; other white dots are sprinkled over 
the surface. The head is rust-red and the claspers and anal 
extremity are a deeper red. Covering the body are longi¬ 
tudinal rows of dull olive-coloured tubercles, each amply 
furnished with black, shining bristles. 
All through life the larvae are gregarious, but after hiberna¬ 
tion, they live unprotected by a web. During dull weather 
they remain practically motionless, congregated together, but 
as soon as the sun appears they become active, and feed 
rapidly. 
The Glanville Fritillary 
(1. Female ab. captured at Ventnor. 2. Male ab. captured at Ventnor.) 
The larvae select for pupation the stems or stalks of plants, 
or the protected surface of large stones. Sometimes two or 
three are found together. 
Pupa. The pupa measures from 127 mm. to 14*8 mm. 
long ; the head is rounded in a continuous curve with the 
thorax, which is swollen in the middle and sunken at the 
waist. The abdomen is full and rounded, curving to the 
anal segment ; the ventral abdominal surface is much con¬ 
tracted ; the wing is swollen and slightly curving. The 
ground colour is variable, being usually of an ash-grey or 
pale drab tinged with flesh colour. The whole surface is 
densely reticulated with dark brown and black, the upper 
