154 PIERIS KAP2E. 



other young larvse eat one another, but not attack their 

 brothers yet in the egg ; however, after proper food 

 had been supplied I noticed no more cannibalism with 

 ra/pce. The newly hatched larva is not quite 2 mm. in 

 length, slender, in colour yellow all over, head and all, 

 the usual dots looking like small raised warts and each 

 bearing a longish pale bristle ; as it feeds it becomes 

 greenish and tiny black specks begin to show. When 

 the larva is 4 mm. long the head is brownish, the body 

 shining green, the usual warts are prominent and 

 white, but the bristles are black and look knobbed ; 

 when the length of 7 mm. has been attained the whole 

 larva is green, the warts as before white, each set with 

 a stiff black bristle, the back powdered with black 

 dots of two sizes, and with fine downy pale hairs, the 

 dorsal line is distinct by being free from dots, but there 

 is no difference of colour, and as yet there is no spirac- 

 ular line ; when the larva is 11 mm. long, after I 

 believe the third moult, the yellow dorsal line is dis- 

 tinct, but there is no yellow yet in the spiracular line, 

 the warts and dots as before ; when the larva is through 

 the next (and last) moult and is 15 mm. long, the 

 yellow spots appear in the spiracular line, and the 

 black dots multiply. The full grown larva is 28 or 29 

 mm. long, cylindrical, tapering slightly from the middle 

 towards either end, the general colour a dull green, a 

 thin yellow dorsal line, a faint yellow spiracular line, 

 which carries a row of yellow spots, namely, one apiece 

 on segments 3 and 4 ; from 5 to 12 there are two spots 

 on each segment, namely, one immediately in front of 

 the spiracle and touching it and the other some little 

 distance behind ; the spiracles are pale in black rings ; 

 there is no yellow spot on segment 13. The trape- 

 zoidal and lateral warts are small but somewhat promi- 

 nent, and are white in colour but with dark bristles ; 

 the whole skin set with small black dots down to the 

 legs, more thickly on the back, and these dots emit fine 

 hairs ; the legs are whitish-green ; the belly glistening 

 whitish-green. As the larva matures there becomes 



