PL. LXXIV 



The insect has an expanse of wing varying from 1.35-1.75 

 inch. It is not uncommon in southern Arizona and northern 

 Mexico. 



GENUS (ENEIS HUBNER (THE ARCTICS) 



Medium-sized butterflies, above some shade of light or dark 

 brown; below marbled and mottled, often with a dark median 

 band crossing both wings. The fringes are brown checkered 

 with white. They live in the cold north or on the tops of 

 high mountains. One of the best-known species is the White 

 Mountain Butterfly, 0. semidea, which exists on the summit of 

 Mt. Washington, New Hampshire. The eggs are ovate- 

 spheroid, ribbed, and are laid on dry grasses near the spot 

 where grass will grow in the following spring. The caterpillars, 

 when mature, are cylindrical, tapering from the middle both 

 ways, pale green or brown, with darker longitudinal stripes, 

 feeding on grasses. The chry solids are stout, a little angu- 

 lated, and are formed, unattached, under stones or at the roots 

 of grass in a slight depression where the caterpillar has depos- 

 ited a few threads of silk. 

 HO 



