462 NORTH AMERICAN NOCTUID.E SMITH. 



Inconcinna is a dark fuscous species, iu which the last ventral seg- 

 ment is t'oveate on each side, and the edges form an incurved margin 

 to the dorsal surface of the abdomen. 



Umbrosa is a smaller species, dark, blackish-gray in color, and with 

 the last segment of abdomen simple. In both the species the normal 

 noctuid markings are present, and essentially alike, so that it is diffi- 

 cult to find any difference iu ornamentation. The ground color seems 

 constant, however, as does also the difference in size, and the peculiar 

 difference in the terminal segment of female abdomen. 



In tabular form the species are as follows: 



Vestiture hairy. 



Lnteous gray, s. t. line wanting submakina 



S. t. Hue present. 



Fuscous; paler or darker, claviform wanting phoca 



Ash gray; claviform present ; lines geminate peuplexa 



Vestiture scaly; front with superimposed tufts. 



Fuscous brown ; abdomen of 9 with last ventral segment foveate at sides, and 



incurved on dorsal margin inconcinna 



Dark ash gray ; smaller; abdomen of 9 normal umbrosa 



These species are nearly all represented iu the Museum collection. 



Scotogramma submarina Grt. 



Can. Ent. 15, 4 (Anarta); Smith, Proc. U. S. Nat. Mus., x, 1837, p. 469, Scotogramma. 



Pale luteous gray, with black powderings. Median lines distinct, 

 single, black. Basal line marked. T. a. line upright, or somewhat 

 outwardly oblique; outwardly curved iu subraedian space, and den- 

 tate on vein one. T. p. line strongly creuulate, its course about par- 

 allel with the oblique outer margin, the median space thus consider- 

 ably narrowed iuferiorly; s. t. line wanting; a row of small, lunate, 

 -terminal spots. A variably distinct, somewhat diffuse shade line 

 crosses outer portion of median space, obscuring the reniform, which is 

 hardly defined ; orbicular obsolete; secondaries smoky fuscous, whitish 

 toward base. Beneath pale, powdery, with more or leSs complete, some- 

 what puuctiform outer Hue, and small discal spot. Head and thorax 

 concolorous, vestiture, with flattened hair intermixed, forming iudistioct 

 fore and aft tufts. The genitalia of male have the harpes and clasper 

 equally curved, and nearly equal in length, i. e., the clasper reaches to 

 the tip of the harpe, though arising hardly one fourth from that point. 

 Both are obtusely terminated, the clasper corneous, the harpes mem- 

 braneous, aud set with fine hair. The last segment of the female is 

 also somewhat peculiar. On the uuder side it is cariuate, at the mid- 

 dle deeply foveate, each side broader than the dorsal portion of same 

 segment and forming au incurved margin. The segment is broader 

 than those immediately preceding it. It is furnished with a tuft of 

 hair, giving additional prominence. Viewed from above, when clothed 

 with vestiture, it has the appearauce of a deep fovea at each side. This 



