472 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxii. 



black, outer deliuecl by pale scales. Secondaries smoky, powdery, 

 with white fringes, a large discal luniile, an extra median line, and a 

 series of terminal Innules, darker. Beneath, powdery, primaries smoky, 

 with an extra median line; secondaries gray, with an extra median line 

 and discal spot. 



Expanse, 47 mm. = 1.88 inches. 



Hahltat. — Twin Mountain, New Hampshire, August 3 (Edward W. 

 Cross). 



One female in good condition. The species belongs to tlie series 

 with aedon and 2)ulverule)ita, diti'ering from each in the ground color 

 and details of maculation. I am quite certain that I have seen this 

 species in collections with a name to which it is not entitled. The 

 species of this genus do not seem to be common and of some of them 

 I have seen only the types. 



71. POLIA ACERA, new species. 



Ground color an even purplish gray with a reddish shading through 

 the median space of primaries. Head with a brown frontal line. Col- 

 lar more whitish inferiorly to a sharply defined black, transverse line. 

 Patagia well marked, with a vagae snbmarginal darker shading. 

 Primaries with a sharply defined, slender, black streak from base 

 through the submedian interspace, nearly to the transverse anterior 

 line. Another less distinct black streak along inner margin, reaching 

 somewhat nearer to the center of the wing. Basal line not traceable 

 in the specimens before me. Transverse anterior line obsolete or very 

 feebly traceable; geminate, with long outcurves in the submedian 

 interspace and below the submedian vein. Transverse posterior line 

 almost obsolete or imperfectly marked, geminate over the cell, then 

 the inner line narrow, black, dentate on the veins. Subterminal line 

 wanting or indicated by brown interspaceal streaks which are best 

 marked opposite the cell and above the anal angle. Fringes reddish 

 gray. The veins are marked with black scales. There is a brown, 

 median shade line which is Incomplete, marked between the ordinary 

 spots and from the tip of the claviform to the inner margin. Clavi- 

 form black ringed, concolorous, extends halfway across the median 

 space, a slender black or brown streak connecting it with the trans- 

 verse posterior line. Orbicular oblong, oblique, nearly or quite reach- 

 ing the reniform, and probably in some instances confluent with it; a 

 little paler than ground, incompletely outlined by black and brown 

 scales. Beniform large, upright, kidney-shaped, somewhat irregular, 

 open above and tending to enlarge, else narrowly outlined by brown 

 scales, a little yellowish centrally. Secondaries smoky yellowish, paler 

 at base, fringes whitish. Beneath, whitish or smoky, a little powdery, 

 without obvious lines or spots. 



Expanse, 42 (male) to 52 (female) mm. = 1.08 to 2.08 inches. 



KoMiat. — Pullman, Washington (C. Y. Piper) ; Seattle, Washington. 



