196 THE BUTTERFLIES OF THE WEST COAST 



This fine species was published in 1869, and, as shown above, is 

 widespread, yet is one of the rarest butterflies of the West Coast. 

 The figures show the beautiful insect very well; it is not white, 

 but there is a delicate tint of chocolate-brown all through, on 

 upper and under side, quite unlike any other Coenonympha. It is 

 a mountain species, and flies higher on the mountains than any 

 other Coenonympha. 



283. Coenonympha Pamphilus. 



Plate XXV ; Figures 283, b. 



Fig. 283, Male, Judith Mountains, Montana, July, 1892; 

 Author, 

 b, Female, underside, Judith Mountains, Montana, 

 July, 1892; Author. 

 This species scarcely comes within our limits, as it is a Great 

 Basin species, although set down in the books as a Californian 

 species, but I have never taken one in California, nor have I ever 

 seen one that was taken here ; yet, of course, it may have been. 

 It is said to live in Utah, and as I have taken it in Montana, it 

 probably inhabits all of the States of the Great Basin. 



Genus CHIONOBAS. 



Medium-sized, wood-brown butterflies ; remarkable for color, 

 flight, and habits. All the species have a characteristic family like- 

 ness, so that no one of them can well be mistaken as belonging to 

 any other genus. These butterflies seldom or never feed on 

 flowers, or sip at water in damp places. Evidently their individual 

 lives must be short, and are spent solely in play and in the repro- 

 duction of the species. They pass the time during the sunny 

 day hours in sunning themselves upon the bare rocks, or on the 

 spots of bare ground in the grassy places where they live, starting 

 up now and then to pursue any flying thing that may come along, 

 returning to the same place again. Their manner of alighting is 

 peculiar, hesitating, as if in doubt whether it may be safe or not, 

 and then with wings all upraised, they drop upon their favorite 

 perch. 



The determination of species is chiefly by the under side. 



The determination of sex, is by the ocelli, the size of abdomen, 

 and relative size of the specimen ; also the female usually has more 



