no. 1645. REVISION OF CERTAIN NOCTUID&I— SMITH. 251 



than the primaries, without traceable transverse maculation until the 

 distinct, narrow, black extra median line is reached. This is most dis- 

 tinct toward the inner angle, does not reach the costa and is outwardly 

 edged by a bluish-gray line or by a more diffuse shading of blue- 

 gray scales. In the male there is a tendency to a whitish blotch at 

 the anal angle, and on the primaries this is a rather conspicuous fea- 

 ture in nearly all the examples at hand. Beneath, dull smoky brown, 

 powdery, with a more or less obvious discal lunule on all wings, and 

 a tendency to a pair of transverse lines which are not often distinct. 



Expands, 1.48-1.68 inches=37-±2 mm. 



Habitat. — Center, New York in May ; Pennsylvania ; Kirkwood, 

 Missouri, March '25; Raleigh, North Carolina, in May, and Tryon, 

 North Carolina, June 4; Seven Oaks, Florida, in September, Palm 

 Beach, Florida, in March. 



Types.— Coll. U.S.N.M., Type No. 12020; also in collections of 

 Barnes and Rutgers College. 



In the series of 5 males and 7 females now before me there is very 

 little variation. Two of the Floridian examples diverge in the di- 

 rection of a more defined median shade and a little more hoary wash- 

 ing; but they do not cause any conflict with any other species, the 

 characteristic features of the present one being well marked. 



The spinulation of the middle tibia? in both sexes is scant and easily 

 overlooked in the vestiture, although the individual spines are long. 

 In the male it is difficult to see them at all, in situ, and even in the 

 mounted preparation they are not conspicuous. 



The tufting of the middle femora in the male is not at all con- 

 spicuous and is easily overlooked; but there is an obvious excavation 

 on the inner side filled with the usual specialized scales, although in 

 bulk it is small compared with some of the allied species. 



The genital structure is distinctly asymmetrical, the left lateral 

 piece or harpe being distinctly longer, broader, and less curved than 

 the right, which is a little enlarged toward the tip. 



In the female the upper side of the terminal segment has the im- 

 pressions very distinct, but not discolored in any of my examples. 

 Beneath, the lobes are distinctly marked, the right a little the larger, 

 while the opening to the copulatory pouch is at the upper inner angle 

 of the right lobe and on the inner rather than the upper margin. 



This is the dullest and darkest of the species with smooth vestiture, 

 and distinct from its allies in the conspicuous black reniform and 

 single, well-defined black basal and t. a. lines. The males have a con- 

 spicuous white patch at the anal angle of primaries, and as a whole 

 there is little doubt as to the location of any individual. 



Its nearest ally is metata, and this is also indicated by the genital 

 structure of both sexes. But even here there are obvious distinctions 

 which bear out the superficial differences. In the males the right 



