no.1645. REVISION OF CERTAIN N0CTVID2E— SMITH. 249 



by a little contrast between s. t. and terminal spaces only, or rarely 

 by an edging of darker or paler scales. Beyond the s. t. line is a dusky 

 somewhat glaucous band or shade, best marked opposite the angula- 

 tion of the line and usually distinct to the inner margin, while toward 

 the costa it is lost before it reaches the apical area. There is a tend- 

 ency toward strigillation of the terminal space and toward a series 

 of pale terminal spots. Secondaries witli a black extra-median line 

 extending from anal angle almost to costa well within the apex. This 

 line is usually edged with yellowish scales or a yellowish line out- 

 wardly, and with a brown shade inwardly, in some cases forming a 

 real band that extends from the angle to vein 5. There 1 is a tendency 

 to a bluish powdering in the terminal area, which is best marked in 

 the males. Beneath, yellowish brown, powdery, secondaries usually 

 with a discal spot. Sometimes the primaries also have such a spot 

 and occasionally a transverse line will be traceable, usually on the 

 secondaries. 



Expands, 1.60-1.80 inches=40-45 mm. 



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

 District of Columbia; Tryon, North Carolina, in August; Virginia; 

 Florida. 



Types.— Coll. U.S.N.M., Type No. L2025; also Rutgers College 

 Collection. 



Four males and six females are at hand ; all very similar, yet ex- 

 hibiting a considerable range of variation. As a whole the males are 

 a little more brilliant and better marked than the females, one of 

 the latter having almost no contrasts. There is quite a bit of differ- 

 ence in the reniform; but it is always darker than the ground and 

 never quite black. The terminal area usually shows the dusky band 

 distinct, but even that may disappear almost entirely. In the defini- 

 tion of the median shade there is every range between distinct and 

 almost entire uniformity: but the hitter is exceptional. 



The spinulation of the middle tibia is scattering and not conspic- 

 uous in either sex; in the male the spines are not easily found in the 

 dense vestiture. The tufting of the middle femora in the male is 

 quite distinct and there is a large mass of specialized scales. 



The genitalia of the male are distinctly asymmetrical, the lateral 

 processes or harpes of the right side being much more curved and 

 slender than those of the left, while the left side has the same sort of 

 supplemental piece found in obliqua, except that it is here narrower 

 and longer, and rounded at tip; altogether a smaller and less conspic- 

 uous structure. 



In the female the depressions on the upper side of the anal segment 

 are well marked and sometimes the segment is ocherous. On the 

 under side the lobes are not markedly dissimilar and the opening to 



