THE CANADIAN ENTOMOLOGIST. 85 



wing to the inner margin, the fourth an oblique dash crossing the wing 

 about one-third its width ; 5th at the end of a curved opalescent line that 

 runs across the wing to tornus ; 7th produced as a short opalescent line ; 

 8th as a longer opalescent line that ends on middle of outer margin ; disk 

 broadly blackish, thickly filled in with little yellow dots that appear 

 opalescent in certain lights. Hind wings blackish brown, the fringe paler ; 

 abdomen white ringed, especially below ; legs black spotted outwardly. 

 One female, expanse 14 mm. Onaga, Kansas (F. F. Crevecceur). U. S. 

 Nat. Mus. Type No. 4424. 



Genus Choreutis, Hiibn. 

 Hiibn., Verz. Bek. Schmett. , 373, 18 16. 



Spnopsis of Species. 



Fore wing ochreous at tip inflatella, Clem. 



Fore wing not ochreous at tip. 



Fore wing broadly ochreous at base silphiella, Grote. 



Fore wing slightly ochreous at base in streaks or not at all so. 

 Extreme base of wing dark. 



Dark basal space contracted, the middle of the wing filled 

 in by a purplish cloud containing black specks. 

 This cloud edged by a distinct white 



line onustana., Walk. 



Edges of this cloud only a lighter shade of purplish. 

 Outer edge of cloud irregular, dentate ; two 

 ochreous streaks at base . . bjerkaiidella, Thunb. 

 Outer edge of cloud defined by a curved line ; no 



ochreous at base sororailella, Dyar. 



Dark basal space not contracted, occupying half the wing, 

 the pale cloud occupying the terminal half with the 

 black specks segregated into a patch below vein 5. 

 Basal space crossed by a white line. 



This line curved occidentella, Dyar. 



This line straight extrincicella, Dyar. 



Basal space without a traversing 



line Coloradella, Fern. MS. 



Extreme base of wing whitish gray leucobasis, Fern. MS. 



C. inflatella, Clem., Proc. Eut. Soc. Phil., II., 5, 1863 ; virginiella, 

 Clem., Proc. Ent. Soc. Phil., III., 505, 1864. 



I cannot distinguish Clemens's two species, described as Brenthia. 



