BUTTERFLIES OP MONTANA. 



87 



hind wings. Bases of wings brownish black Under side of wings dark, 

 with light mottlings and marblings. Apex of fore wings lighter. The 

 light markings make a band across the wings, the inner margin of 

 which crosses the middle of the wings. A light patch usually on costa 

 of fore wings, between light band and base. Wings deeply excised. Legs 

 and feet light colored. Antennae ribbed below, with black clubs, the 

 ends of which are of the same color as the upper surface of wings. 



There are two forms. One is very dark below, almost black, with a. 

 white open C like in faunus. The other is much lighter below, the color 

 being a dark brown, the spot on hind wings forming a G, larger. The 

 under surface is broken by darker brown patches extending crosswise of 

 the wings. Above the wings are lighter and the black spots much 

 smaller. 



Early Stages The caterpillar feeds on the nettle. 



Distribution From Ontario to the Western part of the United States, 

 It has been collected in the state by Elrod at Missoula, at Sinyaleamin 

 and Swan lakes; by Cooley at Bozeman, September, 1899; by Brandegee 

 at Helena. 



THE ZEPHYR 



Polygonia zephyrus, Edwards. Fig. 70. 



Fig. 70. Polygonia zephyrus. 



Butterfly Upper side of wings similar to faunus and satyrus, ful- 

 vous, marked with yellowish toward the outer margins, the dark mark- 

 ings upon which are not as heavy as in the other species. Below the 

 wings are much paler than in faunus or satyrus, reddish brown,, marbled 

 with darker brown lines; the band across the wings is quite light, the 

 female with a row of small light yellowish spots pupiled with black. 



Distribution Rocky Mountain region from Colorado to California, 

 and from Oregon to New Mexico (Holland). Taken in Montana by Cooley 



