44S 



Hie oiiltT. 'Vhr space 1)et\veeii the two liiies paler Ihaii (he base of (lie wing. 

 Outer Hue aeiit-ely angled in the last siibniedian interspace, curved outward 

 before reaeliini,Mlie costa, on wliieli there is a diffused dark spot. Beyond 

 this line, the wing is lirown, paler toward the apex; a faint, subniarginal, 

 whitish line. Fringe brown, with dark, slight lunules in the scallops ; a small, 

 black, discal dot. Hind wings with numerous, transverse, linear striga- ; some- 

 times, especially toward the base of the wings, united and forming short lines. 

 Two lines: the inner a ditfuse band, inclosing and effacing t lie discal dot ; 

 outer line more distinct, slightly bent on tiic snl)costal space, A broad brown- 

 ish band beyond, reaching to the apex, and leaving the margin of the wing 

 beliind the two apical teeth pale. Hind wings (lee[)ly scalloped ; the teeth 

 large and acute. Fringe dark on the two apical scallops, pale posteriorly. 

 Beneath, liotli wings paler than above, and uuiforndy transversely strigated ; 

 the outer line common to both wings more deeply scalloped than above; on 

 the fore wings it is bent at riglit angles below the co,sta, ending in a dark 

 costal spot. Costa with transverse unequal spots, Discal dots quite large 

 and distinct. Abdomen lirownish, with two rows of dorsal s]K)ts. The female 

 is rather larger and decidedly paler than the male, with deeper scallops, and 

 wanting the broad, marginal, l)rown band ori both wings, while the fringe is 



pale. Beneath, the wings are not paler than above 



Length of body, S, 0.80; of fore wing, <f , 0.90, 9, 1,05; expanse of 



wings, 2.10 inches. 



Montreal, Canada (Lyman); Andover, jMass. (Sanborn) ; Brookline, Mass., 



July 16, 22 (Shurtleff); Easton, Pa., and Illinois (Clemens). 



This common form may be readily identified by the deeply- scalloped 



dentate wings, the brown margins, and the slightly-scalloped, straight, outer 



line of the fore wings, the straight outer line of the hind wings, and by its large 



size. In the Illinois .specimen, tiie margin of the wings is much paler than 



usual, almost white, with a subniarginal brown shade. 



STENOTRACHP^LYS Guent^e. Plate 5, fig. 7. 



Slcnolrachelijii Gueii., I'luil., i, 21)0, 16.')7, 



Walk,, List Lep, Hot. Br, Mus., xxi, 4.58, 1860. 



9. — Head l)roader and more convex in front than usual. Palpi stout, 

 thick, porrect, or very sliglitly ascending. Fore wings long and moderately 

 broatl ; co.sta straight ; apex subfalcate, subrectangular. Outer edge not very 



