BUTTERFLIES OF THE VICINITY OF NEW YORK CITY 



cylindrical, usually with very fine short hair They also 



lack the scent-organ of the Papilios. They live aim 

 clusively on plants belonging to the pulse family (Legumino 

 and the mustard family (Cruciferae). The chrysalids may be 

 distinguished at once by the presence of a single pointed pro- 

 jection in front, and sometimes they are very much enlarged 

 ventrally, s<» as to be almost triangular in shape. Theeggs are 

 much longer than broad, taller than those of any other group 

 utterflies; they are vertically ribbed, and almost invariably 

 laid singly, though sometimes in open clusters. 



Synopsis oj the PierifUB, 



Pieris. 



White, with black spot on fore wings (two in the female) . . . .P. 1 



Pure white, without markings P. oler 



With veins on under side of hind wings heavily bordered with 



greenish scales P. protodicc. 



Euchloe. 



Upper wings falcate, tipped with orange in the male E. genutia. 



Catopsilia. 



Wings bright lemon-yellow C. entitle. 



Colias. 



With silvery spot in middle of hind wings beneath. 



Wings sulphur-yellow, with black borders C. philodicc. 



Wings orange, with black borders C. curythemc. 



Fore wings with a yellow "dog's-head" patch C. ccrsouia. 



Eurema. 

 With no silvery spot in middle of hind wings beneath. 



Wings bright orange, with black borders E. nicippi. 



Wings lemon-yellow, borders black, with ferruginous spot 

 on apex of hind wing beneath . . E 



7. White Cabbage Butterfly (Pieris 6L 



. from its COD hrougfa its having 



the upper side of the wings entirely white. It is t!.- the 



first brood appearing from the latter April until a 



