64 



BULLETIN UNIVERSITY OF MONTANA. 



Butterfly — Expanse of wings, 2.25-2.50 inches, 55-65 mm. Upper sur- 

 face fulvous, obscured by brown scales on tlie fore wings from the second 

 bar in the cell obliquely to below the median zigzag line on the hind 

 margin; the two marginal lines so blended that not much of the ground 

 color is left. Marks as in A. aphrodite. Under side of fore wings reddish 

 fulvous, costa and apex light buff, the apical patch and outer margin 

 brown, with the apical silver spots, six marginal, three sub-marginal; 

 hind wings dark red brown, much mottled with greenish gray or drab, 

 the sub-marginal band pale yellow, usually pure from margin to margin. 

 Silver spots as in aphrodite. 



This insect resembles aphrodite; it is distinguished from that species 

 by its smaller size, its somewhat narrower wings, the deeper color of 

 the base of the wings on the upper side and their darker color on the 

 under side. The sub-marginal band is pale yellow, narrow, but distinct 

 and always present. 



Early Stages — The egg is conoidal, with twelve to fourteen ribs, 

 ioney yellow. The caterpillars are hatched in the fall and hibernate 

 without feeding until the following spring. 



Caterpillar — The head is dark blackish brown. The body is velvety- 

 purple above, a little paler on the underside. The usual spines occur on 

 the body, and are black, grayish at the base. The larva feeds on violets. 



Crysalis — Light brown, speckled, except on the abdominal segments, 

 with black. 



Distribution — The species has a wide distribution. It ranges from 

 Maine to the mountains of western Pennsylvania, thence southward along 

 the central ridge of the Alleghanies into West Virginia. It is found in 

 Canada, extending westward into the Rocky Mountains. 



In the state it has been taken at Missoula, Mount Lolo, and Flathead 

 Lake by Elrod, and at Bozeman by Cooley. It does not seem to be repre- 

 sented ^n Wiley's collections. According to Coubeaux it is common in 

 the Bear Paw Mountains. 



i THE EURYNOME FRITILLARY. 



Argynnis Eurynome, Edwards. Fig. 54. 



Fig. 54. Argynnis eurynome. 



