272 REVISION OF MAMESTRA — SMITH. 



browu aud whitish lines; orbicular and reniforra marks very iudistiact, 

 like the lines in color. Hind wings cinereous, with broad brownish 

 borders; fringe of the four wings whitish at the base. Length of the 

 body, 8 lines ; of the wings, 18 lines. " 

 "a. Eocky Mountains. Presented by the late Earl of Derby." 

 This description might readily be made to apply to several of our 

 Western species. 



Mamestra associans Wlk. 



1858. Wlk. , C. B. M. , Lep. Het. xv, 1683, Manuslra. 



"Mas: Cinerea; thorax postice nigricantecinereus, fascia autica 

 interrupta nigra ; abdomen rufesceus, basi cinereum, fasciculo apicali 

 maguo; alfe anticae rufescentes, costa cinerea nigro notata, linea sub- 

 marginali alba undulata interrupta, orbiculari obsoleta, reniformi nigra 

 sat parva; postica3 pallide ciuereie, marginali fuscesceute, subtus apud 

 costam rufescentes nigro subconsperstie. " 



"Male: Cinereous, paler beneath. Thorax blackish cinereous hind- 

 ward, with an interrupted black band in front. Abdomen reddish, 

 cinereous towards the base; apical tuft large. Fore wings reddish, 

 cinereous, and with black marks along, the costa; submarginal line 

 white, undulating, interrupted; orbicular mark obsolete, reniform 

 black, rather small, somewhat contracted in the middle. Hind wings 

 pale cinereous, with a brownish marginal line; under side reddish, and 

 slightly speckled with black along the costa. Length of the body, 7 

 lines; of the wings, IG lines. " 



"a. East Florida. Presented by E. Doubleday, Esq." 



Mamestra septentrionalis Wlk. 

 1865. Wlk., C. B. Mus., Lep. Het., xxxii, 660. 



Mas: Fusca; palpi oblique ascendentes, articulo 3" longiconico; 

 abdominis fasciculis apicalis ferrugineo rufus; alne anticaj nigro con- 

 spersie, striga lata obscuriore orbicularem et reniformem cinereas mag- 

 uas nigro-marginatas iucludeute; lineis septem e lunulis luuulisque 

 marginalibus nigris, spatio marginali nigricante lineam submarginalem 

 cineream undulatem iucludeute; posticae cinereas, fusco margiuatie." 



"Male: Brown, cinereous beneath. Palpi obliquely ascending, not 

 rising higher than the vertex; second joint hirsute; third joint elon- 

 gate conical, about one-fourth of the length of the second. Abdomen 

 brownish cinereous, extending a little beyond the hind wings; apical 

 tuft short, ferruginous red. Femora clothed with long hairs. Fore 

 wings thinly black speckled, with a broad dark browu streak which 

 contains the orbicular and reniform marks; these are cinereous, large, 

 black bordered, aud of the usual form ; some irregular black lines com- 

 posed of curves, two near the base, two on the inner side of the orbicu- 

 lar mark, aud three exterior, of which the first is interrupted by the 



