AMERICAN LEPIDOPTERA. 29 



margin it bends inwardly, and is once waved; it is very regularly arcu- 

 ate and minutely dentated on the nervules. 



Terminally it is again continuously obscurely shaded along the outer 

 edge, as on median space immediately inside of the transverse exterior 

 line, but the shade is here interspaceally broken by paler whitish 

 scales on the nervules. A sub-obsolete series of very minute nervular 

 black dots. Fringes, stained with yellow at base. Secondaries, largely 

 white; the ochreous portion distinctly limited and confined to the mid- 

 dle of the wing on external margin. x\. transverse white line, only 

 visible wliere it crosses this darker portion of the wing, arcuate, and 

 lined inwardly with a dark coincident linear shade. Fringes, whitish, 

 stained with yellowish at base and medially. 



Beneath, both wings are whitish, faintly shaded with pale ochreous- 

 brownish. The transverse exterior line of the primaries alone visible, 

 very distinct and brownish. However, as on upper surface, it is in 

 reality white, the apparent dark brownish line corresponding to the 

 coincident dark shade line of the upper surface, since immediately be- 

 yond it there is a second very faint and narrow dark line, and the nar- 

 row space between the two is whitish, and thus is plainly analogous to 

 the white exterior line of the upper surface with its dark margins. 

 Disc of the primaries faintly shaded with brownish. Secondaries, very 

 pale, resembling primaries. A single, irregular, brownish line, discon- 

 tinued inferiorly, and seemingly running at variance with the short, 

 white line of the upper surface. Fringes on both wings, yellowish. 



Uxpause, 0.G5 inch. Length of hod;/, 0.25 inch. 



Ilahltat. — Atlantic District. (Penna I) 



Differs from Lipocosma sicalis, (Walk.,) Led., by the less promi- 

 nently angulated exterior lines of the upper surface of the wings, by 

 the more ochreous color, and by the absence of the median, sub-discal, 

 black dots and discolorations. 



