131 



BLACK-VEINED WHITE, or HAWTHORN 

 BUTTERFLY. 



Pieris Cratcec/i. 



PLATE XI. Fig. 2. 



Pap. Crateegi, Linn — Lewin, pi. 24 — Donovan, xiii. pi. 

 45 1. — Hawthorn Butterfly, Kirby § S pence. 



In 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 



" 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 Doritis (Parnassius, pi. 11, fig. 1.) The 

 same characters will distinguish it at once from Pan- 



