206 BULLETIN 38, UNITED STATES NATIONAL MUSEUM. 



shaped as in collarift, the orbicular preceded by a black spot. Median 

 shade distinct passing between the spots ; s. t. space darl^er brown ; 

 s. t. line indefinite. Posterior wings uniform dark brownish gray, discal 

 dots present. Beneath brownish gray, with discal spot and a common 

 diffuse median line." 



Expands 32"^"'. 



Habitat. — Massachusetts. 



Entirely unknown to me. 



Agrotis drewseni Stgr. 

 1857. Stgr., Stett. Ent. Zeit., 1857, 302, Agrotis. 



"Cinerea, albido-conspersa, alarum anticarum lineis transversis, 

 punctis anticis fasciaque externa uigricantibus. Magn. 29-30""", $ 9 . 



Habitus of islandica, -primaries still longer and narrower. S antenna 

 serrate and shortly bristled. Ground color dirty ash gray. Collar 

 with a black line. Primaries most like bright specimens of A. cursaria, 

 but ash instead of yellowish gray. At base and costal space strongly 

 sprinkled with white atoms. At the costal margin in addition are a 

 few obsolete dark spots. Median lines sharply defined, black ; t. a. in- 

 wardly margined with white ; t. p. line S-shaped, in the middle with 

 four acute points. Ordinary spots somewhat paler than ground color ; 

 claviform wanting. In one $ specimen there is between the spots a 

 bent black transverse line, strongest at hind margin, almost attaining 

 anterior margin. At outer third is a paler, indefinite transverse shade 

 which, as in islandica, has no sagittate marks, or has them but faintly 

 indicated. Between this and the outer margin is a darker shade which 

 does not attain the anterior margin. In the paler basal space a rudi- 

 mentary transverse line is visible, strongly margined outwardly with 

 white. Fringes ash gray, mixed, with a darker line at base. Beneath, 

 dirty whitish gray, at the anterior margin with darker atoms. Cell 

 rather darker. Secondaries uniformly gray ; fringes white, at the base 

 yellowish. Beneath dirty white at outer margin darker, at anterior 

 margin with darker atoms. An indefinite discal spot. 



Habitat.— Greenland. 



This species is apparently close to munis Grt. {=siihJafis Grt.), and 

 indeed it is somewhat difficult to mark exactly what the differences 

 between the two can be. Still I have hesitated to make them syno- 

 nyms without seeing specimens more rearly agreeing with the too de- 

 tailed description. 



Agrotis nanalis Grt. 



1881. Grt., Can. Ent.,xiii, 131, Agrotis. 



" 9 . The smallest species known to me. All the tibire spinose ; eyes 

 naked ; body untufted. A slender species which may be compared to 

 opaca. The fore wings are blackish with the lines lost. The stigmata 

 ^r<j concolorons, diflicult to inake out, The orbicular is elongate, the 



