434 



allele of llic winir, iiiul leaving the edge of \\\r wing pale. IJolli wings 

 iiiotllcd with lallicr broad transverse streaks. A distinet Mack band at the 

 base of the aluhmien; the liind edges of the second and snceeeding segments 

 (biskv; tlie Ijasal segment iinnsuallv wliite. Anterior pair of legsdnskv, w ith 

 narrow jiah'r rinixs; liind leniora tliick, ])ah', witli a iieiicil of hairs, as nsnak 

 The fennde is hirger, a litth' more (bisky aljove and beneath, but with the same 

 markings. 



Length of l)ody, c^ , U.Oo-O.Sj, 9, 0.42; uf fore wing, J, 0.58-0.G,i, 

 9,0.75; e.\])anse of wings, 1.40-l.f)5 inches. 



Maine (Packard); Lansing, ]\Iich. (Miles); Natick, Mass., June 28 

 (Stratton, Coll ]5ost. Soc. Nat. Hist.); All)any, N. Y. (Lintner and Meske); 

 Brewster's, N. Y. (Grote) ; I'liiladelphia, Pa. (Knt. Soc.) ; Pennsylvania 

 (Mus. Com]). ZooL); West Farms, N. Y. (Angus); Demojiolis, Ala. (Grote); 

 1\>.\as, IMarcli l-:-20, May 12, July 1 l-lit, August 19-30 (l^elfrage); Glencoe, 

 Dodge County, Nel)r. (Dodge). 



This is perhaps our most common and widely-distril)nted species. It 

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

 l)asal ring 1)eyond being unnsually \\hite, and by the under side of the wings 

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

 l)ut quite regularly sinuate, and near the costa acutely dentate, while in C 

 huiiuiiui it is instead obtusely curve(k It varies a good deal, especially in 

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

 ently vary mneli in size. I find specimens agreeing mainly witli B. fruga- 

 llaria Guen., having the cannel-coal-colored band, while thi' 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 I)y myself at Idalio, C!olo., July 5, 

 at light, may ])rove to t)e the type of a distinct species. It differs from tlie 

 eastern females of yw^/y^/z/r/y/a in the want of any llasal Idack line on the second 

 ])air of wings, the corresponding line at the Itase of the abdomen not l)eing 

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

 tion of the .wing, while the e.xtradiscal line is scalloped very distinctly; other- 

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

 inches. 



