NORTH AMERICAN LEPIDOPTERA. 41 



male are distinctly serrated, the teeth furnished with tufts of stiff' 

 hairs ; in the female they are simple. The thorax is short, stout, 

 quadrate, the vestiture rather long, loose, and fluffy, composed of 

 flattened hair rather than scales, and forming no distinct tufts, 

 though the edges of the patagire are well marked. The abdomen is 

 comparatively short, though exceeding the secondaries, and it is 

 longer in the female than in the male. In the latter there is a very 

 small basal tuft on the dorsum, and laterally the segments are ob- 

 viously tufted. The legs are short, not very much longer posteriorly, 

 nor very stout; not spinose, nor are the anterior armed in any way 

 at tip. The wings are short and rather narrow, the primaries j)ointed 

 at tip, the outer margin very oblique, somewhat less so in the female : 

 the secondaries are proportionate to the primaries. The venation is 

 norn)al, vein 5 of the secondaries distinct, but obviously weaker than 

 the others. 



In appearance this genus is a curiously intermediate form between 

 Demas and Dicopis, with some of the characters of each and some 

 peculiar to itself. In the wing form, and in the stout thorax and 

 short abdomen it resembles Dicopis, but in the liabitus and macula- 

 tion the resemblance to Demas is most marked. The unarmed fore 

 tibiie exclude the genus from the Dicopinje, with which it might 

 otherwise have been well enough associated. It also has very de- 

 cided resemblances to Feralia, and it is between this genus and Demas 

 that I propose to place the new form. 



I'^|»i«lciiia»$ ciiierca ii. sp. (PI. iv, figs. 10 'J, , 12 9 ). — Grounri color ashen 

 gray, powdery. Head and thorax concolorous, immaculate, except that there is 

 a more or less distinct black submargin to the patagise. Primaries quite strongly 

 black and white powdered, all the normal niaculation fairly distinct. BasHl 

 line barely indicated on the costa; t. a. line distinct, gemiiiate, defining lines 

 black, the included space white and contrasting; in course it is outcurved, some- 

 what drawn in on the subcostal vein ; t. p. line geminate, strongly outcnrved 

 over the reniforni, then evenly oblique, parallel with the outer margin. The 

 inner defining line is distinct and black, the outer more or less indistinct and 

 partly obsolete, the included space white; s. t. line white, irregular, incomplete, 

 more or less defined by blackish powderings preceding or following it. A series 

 of blackish terminal lunules; fringes cut with pale and dark gray, and with a 

 dark interline. A triangular black djish in the submedian interspace at base, 

 which sometimes does not reach the t. a. line. Claviform prominent, extending 

 across the median space, very distinctly black margined inferiorly, less well de- 

 fined above, included space white or very light gray. Orbicular of good size, 

 oblong, oblique, black ringed and white centered. Reniform large, upright, in- 

 wardly defined by a black line, outwardly vague, shading off into the ground 

 color; or in some cases marked by a whitish annulns; usually it is somewhat 



TKANS. AM. ENT. SOC. XXI. (6) FEBRUARY, 1894. 



