PAPILIONIDiE. 
325 
A pretty little species which inhabits the eastern half of the 
country is Pieris protodice. Like many of its near relatives its 
Pieris protodice. Male. 
larva feeds upon cruciferous plants, doing much damage to the grow¬ 
ing crops, and when plentiful it is somewhat of a pest. 
Pieris protodice. Male. Under side. 
There is a good deal of variation in the species, and the sexes 
are unlike, the male being almost pure white with a few dark spots, 
while the females are clouded, and the veins on the under side are 
margined with lines of yellow. This insect is not common in New 
England, but in the west and south it may be seen flitting low over 
the fields, or on the blossoms of weeds during the summer and 
autumn. 
