AMERICAN LEPIDOPTERA. 219 



margin, the fringes being usually darker than the rest of the wing. 

 The t. p. line is punctiform in this species, usually traceable, and 

 there may be a fairly obvious longitudinal dusky shading through 

 the middle of the wing. 



Umbonata has the wing form of the preceding, but the primaries 

 are uniformly smoky brown, and the secondaries are not much 

 lighter. The discal dots are traceable in most specimens, and in 

 one example there is an indicated t. p. line; but all maculation may 

 be completely absent. 



Apicalis is similar to humeralis at first sight ; but the primaries 

 are decidedly more pointed, the color is more even, there is no dark- 

 ening outwardly and no t. p. line or longitudinal shading on any 

 specimen. 



Minorata is the smallest of the species; like apicalis in wing form 

 but darker, with an exterior line almost as continuous as that in 

 bipuncta, ami in the type specimen a very decided indication of a 

 t. a. line. 



1. Primaries with an obvious longitudinal dark streak through the middle of the 



wing, and no transverse line 2. 



Primaries with a complete band at the place of the t. p. line, and no lougitu- 



tinal streak :;. 



Primaries with t. p. line punctiform or altogether wanting; longitudinal 



streak absent or only indicated 4. 



2. Color deep smoky brown, primaries trigonate, inner margin not much should- 



ered stygialiw. 



Color creamy white, powdery ; primaries more parallel, inner margin distinctly 

 shouldered strigata. 



3. Size large (25 mm. or more), broad winged, with rectangular apices. 



bipuncta. 

 Size small (less than 20 mm.;, narrow winged, with pointed apices. 



minorata. 



4. Primaries white, without powdering, immaculate, except for a gray discal 



spot nivealis. 



Primaries whitish, powdery, without a t. p. line; shoulder of inner margin 



small ; apex pointed apicalis. 



Primaries yellowish, powdery; punctiform t. p. line usually obvious; shoulder 



of inner margin well marked ; apex rectangular humeralis. 



Primaries smoky brown, practically immaculate, wing form as before. 



umbonata. 



I ih-uIj |>l i-a >«> gialis n. sp.— Ground color a very deep smoky gray or 

 brownish. Primaries slightly lustrous, powdered with black; a diffuse, black 

 but not contrasting longitudinal shade through the centre of the wing. The 

 black discal dots are traceable. The fringes are a little darker than the rest of 



TEANS. AM. ENT. SOC, XXIX. JUNE, 1903 



