COMMON YELLOW BUTTERFLY. 



one near the base, and another, sometimes incomplete, midway 

 between this and the outer margin, near the apex, is a quite 

 dark patch. Dashes of dull brown are scattered along the wing. 

 The moth expands nearly 3cm (1 inches). 



The caterpillars will be seen feeding on -the clover all the sum- 

 mer long, and at the sune time the moths may be started on 

 their short journeys as we walk over the clover fields. 



Colias Philodice. Common Yellow Butterfly. 



Order Lepidoptera. Family Papilionedce. 

 Saunders, Ont. En. Report, 1881 p. 47, 111. 

 French, HI. En. Report, Vol. VII., p. 147. 

 Packard, Guide to Study of Insects, p. 250. 



What was said of the abundance of the Clover Drasteria is 

 even more applicable to our yellow butterfly. Few insects are 

 more common, more widely distributed, or better known than 

 the sulphur-yellow butterfly which gladdens the pasture and 

 roadside, and flecks the damp places along the roadways of all 

 our Northern States. What was said of the food, habits, and 

 destructiveness of the Drasteria erechtea can also be said as truly 

 of Colias philodice. 



Fig. 143 shows the male and 

 female of this familiar butterfly. 

 The eggs are long, tapering, 

 ribbed, and though yellow at 

 first change as the embryo de- 

 velops, first to red and then to 

 brown, just prior to hatching. 

 The young larva is brown 

 with a yellowish tinge. La- 

 ter it changes to green. The 

 green head has a yellowish- 

 white stripe on each side, 

 with a dash of red at the 

 lower edge. The body is 



