38 BULLETIN 38, UNITED STATES NATIONAL MUSEUM. 



brown s. t. space. Secondaries fuscous ; S genitalia essentially as in 

 crenulata. 



Exi)ands 37™'" ; 1.5 inches. 



Habitat. — Washington. 



This is tlie form labeled exscrtistirpna by Mr. Grote in collection Graef 

 and Keumoegen, and Mr. Tepper also had a speciuien associated with 

 binominaUs under the same title. The superficial resemblance between 

 hinonmialis and confusa is very close, but the species are undoubtedly 

 distinct. The black collar of binominaUs is distinctive and the differ- 

 ence in the genitalia is strongly marked. Four specimens of $ and 9 

 from Messrs. Graef, Tepper, and Neumoegen examined. 



Rhynchagrotis costata Grt. 



1876. Grt., Bull. Buff. Soc. N. Sci., iii, 80, Agrotis. 



" 9 Allied to the preceding \exsertistigmaconfusa mihi] but of a bright 

 red brown. The costa broadly pallid, as is the open orbicular. The t. p. 

 line is, however, single, dark, finely lunulate. The veins are slightly 

 indicated. The inconspicuous, linear, dark subterminal, is near the 

 margin. Collar with a black line. Thorax red brown, in my type not 

 well preserved. Hind wings concolorous fuscous. Beneath, fuscous, 

 with common line and dots." 



Expands 35'""'; Vancouver Island. Mr. Edwards, No. 4640. 



The type is not in Mr. Edwards's collection, and Mr. Edwards states 

 that Mr. Grote borrowed quite a number of his types for further study, 

 and nerer returned them ; probably they are now in the British Museum. 



The present species can not well be identified except by examination 

 of the type, for there are certainly three species confused by Mr. Grote 

 under the name exsertistigma, and the fact that a single t. p. line is 

 credited to this species renders the matter still more uncertain. It is, 

 however, more than likely that it is to one of the species I have de- 

 scribed as belonging to this group that the description refers. 



Genus ADELPHAGROTIS Smith. 



Anterior tibia? not spinose, front smooth, rather narrow, subequal. 

 Thorax robust, subquadrate, the patagia? smooth, collar rounded; a 

 prominent anterior and distinct posterior tuft. The primaries are mod- 

 erate in size, with produced apices and oblique, slightly rounded 

 outer margin ; antenna of $ sinqjle, ciliate. Except of prasina no $ 

 specimens of the species have been examined; the probabilities, how- 

 ever, are that the genitalia will run to the same type, viz, elongate, 

 membraneous harpes, more or less rounded at tip, and a moderate, 

 strong, curved corneous clasper. 



While agreeing in general habitus, the species differ very decidedly, 

 and are recognizable at a glance. 



Stellaris and innotabilis agree in the bright yellow or creamy white 

 reniform, diflering inter sc by the pale, gray color of primaries and yel- 



