BUTTERFLIES OF MONTANA. 153 



vein with the outer angles much extended. Hind wings with the sub- 

 terminal spots of the under side showing through a little. 



Under side fuscous gray, sprinkled with pale yellow scales. The 

 spots on the upper surface of the fore wings are repeated, white in color, 

 those of the sub-terminal row blended into three groups, the lower widen- 



Fig. 113. Erynnis uncas. 



Fig. 114. Erynnis uncas. 



ened posteriorly, so as to suffuse most of the posterior angle area. The 

 hind wings have two very much bent white bands, the outer not reaching 

 the inner margin. 



Male Upper surface fulvous, the hinder portion washed with yellow, 

 a row of five yellow spots in the outer fulvous field. Stig-ma very 

 oblique, narrow, jet-black, contracted in the middle. 



Hind wings washed with yellow, inclining to fulvous in the central 

 part; fringes white, fuscous at base. Under side as in the female. 



On the under side of this species the wings are beautifully marked, 

 the spots reappearing from the upper as pearly white ones on greenish 

 gray brown. 



Early Stages These are unknown. 



Distribution It ranges from Delaware westward to Colorado and Mon- 

 lana. In the state it has been taken by Elrod at McDonald Lake in the 

 Mission Mountains (1), at Missoula (2), at the Biological Station at Flat- 

 head Lake abundantly, and also in the Park at Mid-geyser basin (2). 

 Cooley has collected it at several places in the vicinity of Bozeman. Allen 

 has collected in at Dillon. 



THE COMMA SKIPPER, Erynnis comma, Linnaeus. 



Butterfly The following is taken from Scudder's description of 

 Pamphila nevada. which Dyar gives a synonym for Colorado, which is the 

 form taken in Montana. 



