178 THE CANADIAN ENTOMOLOGIST 



possesses a very fine specimen from Nordegg, Alta., and a worn one captured at 

 Pocahontas, Alta. ; the species may therefore be expected to occur throughout 

 the entire northern portion of Canada. The terminal dorsal portion of the 

 left clasper is narrow and rounded ; the ventral edge is terminated by a long, 

 sharp spine (fig. 2). 



A. laetabilis Zett. 

 Of late years the species has not been rare. It was first reported from 

 Atlin. B.C., by E. M. Anderson, who collected in this region in 1914 (Rep. Prov. 

 Mus. B.C. for 1915, 17, PI. IX., figs. 9, 10). 



Since then numerous specimens have been received by Dr. Wm. Barnes 

 from Okak, Hopedale and Nain, Labrador, and several specimens were collected 

 by Mr. J. B. Wallis, of Winnipeg, in 1917 on the Piquitenay River, Mile 214, 

 Hudson Bay R. R. A very large specimen, rather browner than usual, is 

 contained in the Dod collection from St. Anthony, Newfoundland. Messrs. 

 Bowman and Whitehouse have each taken single specimens in tamarack swamps 

 at Nordegg and Reddeer, Alta., the latter specimen being similar to the New- 

 foundland one. 



These specimens all agree in genitalic characters with a Lapland specimen 

 in the Dod Collection; the distal portion of the clasper is bifid (fig. 4), each 

 prong being bluntly rounded terminally ; the ventral prong is generally somewhat 

 shorter and broader than the dorsal one, but there is some variation in this 

 respect. 



A, homogena n. sp. 



Primaries rather even gray-brown with a slight purplish tinge ; a distinct 

 black basal dash reaching 2/3 to t. a. line ; basal half-line geminate, filled with 

 pale gray, indistinct except at costa ; t. a. line geminate, gray-filled, outwardly 

 oblique and prominent from costa to proximal end of orbicular, bent inward at 

 cell and then forming two prominent outcurves in submedian fold and above 

 inner margin with inward angle on vein 1 ; orbicular large, oval, recumbent, 

 filled with pale gray and partially outlined in black in (^ sex, preceded and 

 followed by black shades in cell ; reniform moderate, outlined in black, centrally 

 filled with same shade as the ground color of wing, outwardly with paler ring 

 of color; claviform outlined in black, not prominent; a faint median shade line 

 passing between reniform and orbicular and then bent slightly inward ; t. p. line 

 geminate, dentate, pale filled, arising from dark spot on costa above reniform, 

 well rounded outwardly opposite cell and then rigidly oblique to inner margin ; 

 s. t. line pale, angled outwardly below costa, then slightly sinuous, preceded 

 below costa by several blackish dashes; similar dashes occur between veins 4 

 and 6 and slightly below 2; considerable pale gray shading in subterminal area 

 and at apex of wing; broken blackish terminal line. Secondaries deep smoky, 

 paler basally. with large discal spot and traces of curved median line; fringes 

 paler. Beneath smoky with discal spot and curved median line on both wings. 

 Expanse 38-40 mm. 



Holotypc, 1 J*, Banff, Alberta, (Sanson), September 5, 1911, in Canadian 

 National Collection. 



