131 
BLACK- VEINED WHITE, or HAWTHORN 
BUTTERFLY. 
Pieris Cratiegi. 
PLATE XI. Fig. 2. 
Pap. Cratiegi, Linn Lewin, pi. 24. — Donovan, xiii. pi. 
454. — Hawthorn Butterfly, Kirby cj Spence. 
Ix this genus the antennae are rather slender, and 
the club is formed gradually: the palpi have the two 
lowest joints robust, the radical one being twice the 
length of the second, while the terminal one is about 
the length of the second, and very slender ; the up- 
per wings are nearly diaphanous, being sparingly 
clothed with scales ; the claws are strong and bifid, 
and have a slender appendage on the outside at the 
base. 
“ The black-veined white is one of the few 
butterflies that cannot be mistaken for any other 
species, and it is remarkable for having both sides 
very similar, which is scarcely the case in any of the 
other British Papilionidce. In this- respect, as well 
as in the semitransparent wings and short cilia, it 
approaches Dorilis (Parnassius, pi 11, fig. 1.) The 
same characters will distinguish it at once from Pun- 
