88 BUTTERFLIES 



The caterpillar of the Gray-veined White is a bit smaller 

 than those of the nearly related forms, and in color is 

 green with no distinct longitudinal markings, but with 

 many fine dots of black over the surface. The cylindrical 

 body is covered with a fine down. When feeding upon 

 cabbage it is more likely to attack the outer than the inner 

 leaves, and so even when abundant it is less troublesome 

 to gardeners than the imported species. It is now, how- 

 ever, so rare that it seems to feed chiefly upon wild cruci- 

 ferous plants and is more likely to be found along the 

 borders of open woods than in gardens and fields. The 

 winter is passed in the chrysalis state. 



The Checkered White 



Pontia protodice 



Some years ago the Checkered White was commonly 

 called the Southern Cabbage Butterfly but the general 

 distribution of the imported species has had the same ef- 

 fect upon its abundance in the South that it has had upon 

 the Gray-veined White in the North. Consequently, it 

 is now much less abundant than formerly, even in the 

 Southern states where it is most at home. There are two 

 fairly distinct forms: the spring form and the summer form. 

 The latter is practically of the same size as the Imported 

 Cabbage Butterfly: the males have the hind wings nearly 

 white above and the fore wings with a few black dots or 

 spots upon their outer halves. The females are much 

 more definitely marked, having the upper surface of both 

 pairs of wings marked in black or brownish black in such a 

 way as to enclose a large number of white diamonds. The 



