Genus CEneis 



in the preceding species, and the transverse lines are more dis- 

 tinctly marked. Expanse, 2.00-2. }o inches. 



Early Stages.— These have been most beautifully delineated by 

 Edwards in thethird volumeof "The Butterfliesof North America." 



(3) CEneis macouni, Edwards, Plate XXVll, Fig. 3, 6 

 (Macoun's Arctic). 



B II fferjfj'.— This species is closely allied to the two foregoing, 

 but may be distinguished by the broad median band of dark brown 

 traversing the under side of the hind wings, as well as by other 

 peculiarities of marking. It 

 lacks the bar of raised scales 

 which is found in the male sex 

 about the lower part of the cell 

 of the fore wing in most of the 

 species of the genus. It has 

 been found thus far only on 

 the north shore of Lake Su- 

 perior and at the eastern base 

 of the Rocky Mountains in 

 the territory of Alberta. Ex- 

 panse, 2.00-2.25 inches. 



Early Stages. — For a know- 

 ledge of these in all their 

 minute details the reader is 

 again referred to the pages of 

 the indefatigable Edwards. 



(4) CEneis chryxus, West- 

 wood, Plate XXVII, Fig. 10, $ 

 (The Chryxus Butterfly). 



Butterfly.— This species is widely distributed, being found in 

 Colorado, British Columbia, and the vicinity of Hudson Bay. It 

 is distinguished from other species by the darker brown color, 

 which covers the basal and median areas of both the fore and 

 hind wings, leaving a broad band of lighter brown on the outer 

 margin. On the under side the wings are beautifully mottled 

 with white and dark brown. CEneis calais, Scudder, is prob- 

 ably only a form of chryxus, which is somewhat lighter in color 

 on the base of the wings. Expanse, i. 60-1. 75 inch. 



Early Stages.— The life-history is fully recorded in the pages 

 of Edwards. 



221 



Fig. 123. — Caterpillars of CEneis 

 macouni (Riley). 



