PAPILIONIDJE. 



263 



and the head entire or notched. They live mostly on grasses. 

 k 'The chrysalis is cither oblong and somewhat angular on the 

 sides, with the head notched, and two rows of pointed tuber- 

 cles on the hack, or short and rounded, 

 with the head obtuse." (Harris). Chio- 

 nobas is found on Alpine summits and 

 in the Arctic regions and on subarctic 

 mountains. C. semidea Say (Fig. 190 ; 

 Fig. 191, hind wing) lives on the summit 

 of Mount Washington. It feeds on 

 lichens. 



Mr. Scudder, has in the accompanying 

 figures, closely exhibited the differences 

 between the Alpine and Arctic species 

 of Chionobas. C. Jutta Moschler (Fig. 

 Northern Labrador ; it extends as far south as Quebec, accord- 

 ing to Edwards. C. Chrixus Doubleday, (Fig. 193) is found 

 on Pike's Peak, Colorado Territory ; C. Calais Scudder (Fig. 

 194) is found on Albany River, Hudson's 

 Bay ; C. Bore Schiodte (Fig. 195) we 

 have collected in Hopedale, Labrador, 

 as also C. CEno Boisd. (Fig. 196). 



Satyrus Alope Fabr. is our largest spe- 

 cies. It is dark brown, with a broad, 

 ochre-yellow band beyond the middle. 

 It is abundant in open fields in July and August, 

 green larva is striped with dark, the head is round, and the tail 

 is forked. The chrysalis is rather long, rounded on the sides 

 and with the head notched. S. Nephele Kirby is the more 



Fig. 190. 



192) we took 



in 



Fig. 192. 



The pale 



Fig. 193. Fig. 194. Fig. 195. Fig. 196. 



northern form, and in the upper Middle States, as about the 

 ('Mt skill mountains, occupies higher ground, according to Mr. 

 Kdwards, while S. Alope, which prevails southward, is found 

 in the lowlands and valleys. S. Nephele is smaller, darker, and 



