434 



;m^ r l<' of the wing, and leaving the edge of the wing pale. Botii wings 

 mottled with rather broad transverse streaks. A distincl Mack hand al the 

 base of (he abdomen; the bind edges of the second ami succeeding segments 

 dusky; the basal segment unusually white. Anterior pair of legs dusky, with 

 narrow paler rings; hind femora thick, pale, with a pencil of hairs, as usual. 

 The female is larger, a little more dusky above and beneath, but with the same 

 markings. 



Length of body, S, 0.53-0.55, 9, 0.42; of lore wing, J, 0.58-0.65, 

 9, 0.75; expanse of wings, 1.40-1.55 inches. 



Maine (Packard); Lansing, Mich. (Miles); Natick, Mass., June 28 

 (Stratton, Coll Bost. Soc. Nat, Hist.); Albany, N. Y. (Lintner and Meske); 

 Brewster's, X. Y. (Grote) ; Philadelphia, Pa. (Ent. Soc.) ; Pennsylvania 

 (Mus. Comp. Zool.); West Farms, N. Y. (Angus); Demojiolis, Ala. (Grote); 

 Texas, March 12-20, May 12, July 11-19, August 19-30 (Belfrage); Glencoe, 

 Dodge County, Nebr. (Dodge). 



This is perhaps our most common and widely-distributed species. It 

 may be known by the very distinct line at the base of the abdomen, the 

 basal ring beyond being unusually white, and by the under side of the wings 

 having a broad marginal shade, while the third line on the fore wing is deeply 

 hut quite regularly sinuate, and near the costa acutely dentate, while in C. 

 h nmuria it is instead obtusely curved. It varies a good deal, especially in 

 the tint of the brown shade accompanying the third line. It does not appar- 

 ently vary much in size. I find specimens agreeing mainly with B. fruga- 

 liaria Guen., having the cannel-coal-colored hand, while the discal dot is 

 variable in all the specimens, and I have examples in which it almost, touches 

 the median line. In a specimen received from Mr. Angus, the basal line is 

 double, arising from two costal spots, and uniting on the inner edge of the, 

 wing. 



A single female specimen collected by myself at Idaho, Colo., July 5, 

 at light, may prove to be the type of a distinct species. It differs from the 

 eastern females of pampinaria in the want of any basal black line on the second 

 pair of wings, the corresponding line at the base of the abdomen not being 

 present. The basal line on the Hire wings ends much farther from the inser- 

 tion of the wing, while the extradiscal line is scalloped very distinctly; other- 

 wise it does not materially differ from a typical pampinaria. It expands 1.50 

 inches. 



