THE COMMON SKIPPERS 



The Mormon 



Atrytone hobomok (At-ry-to'ne ho-bo'mok) 



Plate XXXIX, Fig. 14, 15, 16 



The common name of this species refers to the fact that the 

 female is dimorphic; there being a yellow form, which clearly 

 resembles the male, and a dark brown form, which differs so 

 markedly in appearance that it was first described as a distinct 

 species. 



The male and the yellow female closely resemble the male 

 of the preceding species, of which until recently they have 

 been considered a variety. As in that species, the upper sur- 

 face of the wings is pale yellow, dusky at base, and with the 

 margins, except the costal margin of the fore wings, bordered 

 with blackish brown; there is a black bar at the end of cell 

 R + M of the fore wings, but no brand in the male. The 

 dark markings of the wings are more pronounced than in the 

 zabulon skipper, and on the lower surface of the hind wings 

 the central yellow patch is smaller, covering less than half of 

 the wing. Expanse of wings about one and one-fifth inches. 



The Dark Female Form, Atrytone hobomok pocahontas. — 

 Both surfaces of wings chiefly dark brown ; the fore wings have 

 a row of light spots beyond the middle, and the hind wings 

 have a more or less distinct central patch of lighter color. 



Occurs from Canada to Mississippi Valley. 

 Larva feeds on grasses. 



275 



