BUTTERFLIES OF MONTANA. 53 



Early Stages — Egg canoidal, truncated, rounded at base, marked ver- 

 tically with eighteen ribs. Larva hatches in about twenty-five days. Larva 

 at maturity 1.75 in., 45 mm., long, velvety black, banded and striped with 

 ochre yellow changing to dull orange or red. and furnished with six 

 rows of fleshy spines, each with several black bristles; head red above 

 and black beneath. Chysalis an inch long, brown and yellow on ab- 

 domen, remainder pinkish brown or brown. The larva feeds on violets. 



Geographical Distribution — Wiley has collected it at Miles City. It 

 is not reported from other places, and the Wiley collection has but a 

 single specimen. It is reported as common from Maine to Nebraska. It is 

 to be expected the species would be found in the eastern end of the state. 

 In the eastern states it is rather local, and frequents open spots on the 

 borders of woodlands. At times it is apparently common, and then for a 

 succession of seasons is scarce. It flies from the end of June to the be- 

 ginning of September. 



