June 1894.] NeUM(1:GEN & DvAR. N. A. BOMBYCES. 61 



Accessory cell present, broad, distinct. 



Outer margin of primaries entire, falcate . Platypteryx. 



Outer margin deeply excavate at the termination of the veins . Falcaria. 

 Genus Eudeilinia Packard.'^ 



1S76 — Eudeilinia Packard, Mono. Geom. Moths, U.S. Geol.Surv. (Hayden), 

 Vol. X, p. 303. 



E. herminiata Guenee. 



__ lie,-]— Corycia herminiata Guenee, Phal., Vol. II, p. 58. 



1873 — Eudeilinia hiseriata Packard, 5th Rept. Peab. Acad., p. 68. 



White ; fore and middle legs blackish brown beneath. Both 

 with t. a. and t. p. bands of indistinct smoky spots on the veins, 

 the t. p. band broadly sinuate. Two discal dots on the under 

 side of both wings. Expanse, 28 mm. 



Habitat^ Northern Atlantic States. 



Genus Oreta Walker. 



1855— OrfA? Wai.keu, Cat. Brit. Mus., pt. V, p. 1166. 

 i^b'i—Drvi'pteris Grote, Proc. Ent. Soc. Phil., Vol. I, p. 346. 



Synopsis of species. 

 Pale dull rose color, with yellow band ...... rosea. 



Uniformly dull rose color with no yellow band ..... irrorata. 



O. rosea Walker. 



1855 — Drepana rosea Walker, Cat. Brit. Mus., pt. V, p. 1164. 



1856 — Cilix americana Herricu-Sch.^ffek, Ausser. Schmett., Vol. I, f. 470. 



1S62 — Platypteryx formula Gkote, Proc. Acad. Nat. Sci. Phil., 1862, p. 60. 



var. marginata Walker. 



1855 — Drepana marginata Walker, Cat. Brit. Mus., pt. V, p. 1165. 



Yellow, fore legs brick red ; thorax, two-thirds of primaries 

 and basal half of secondaries, pale brownish rose color, slightly 

 strigose. A darker, more purplish, marginal border on primaries, 

 darkest at apex, with two rounded spots at internal angle, and the 

 apex of secondaries of the same color. Two minute white discal 

 dots on primaries. Expanse, 25 mm. 



In the var. marginata, the rose-color shading at the bases of 

 the wings becomes very obscure, leaving them largely yellow 

 except for the dark outer border. 



Habitat, Northern Atlantic States. 

 O. irrorata Packard. 



1S64 — Dryopteris irrorata Packard, Proc. Ent. Soc. Phil., Vol. Ill, p. 377. 



* Prof. J. II. Comstock has very kindly called my attention to this genus. 

 I find our species closely related to Auzata Wlk. (See Kirby, Cat. Lep. Het., 

 Vol. I, p. 735.) — H. G. Dyar. , ; : 



