Sept., 1910.J Smith : North American Agroperina. 145 



course like those of conradi. S.t. line at best only traceable when the terminal 

 space is a little darker and there is a darker shading in the s.t. space. Clavi- 

 form barely indicated in some females ; usually quite lost. Orbicular lost or 

 faintly pale ringed, varying in shape. No median shade. Reniform moderate 

 in size, constricted, a little dusky inferiorly, tending to become lost, in rare 

 cases completely pale ringed. Secondaries dull smoky yellowish, paler at base. 

 Expands, 35-43 mm. = i. 40-1. 70 inches. 



Habitat. — Yellowstone Park, Wyoming, in July; Sheridan, Idaho; 

 Glenwood Springs, Gunnison and Garfield Co., Colorado, July, Au- 

 gust, September; Bozeman, Montana, in July; Pullman, Washington, 

 June 24. 



A series of 41 males and 16 females — most of them from Dr. 

 Barnes's collection. 



The species is conradi with all the powdering gone and most of the 

 maculation washed out. It is probably the form figured as morna 

 by Hampson and, while it varies greatly, it retains a characteristic 

 appearance. There is no chance of confusing it at any time with 

 conradi; but it may conflict at times with the following, lineosa. 



The vestiture consists of hair and flattened hair and forms no 

 thoracic crests. In good males the loose vestiture gives the appear- 

 ance of dorsal tufts. The male antennae have the joints marked and 

 tufted as in conradi, but appear a little thicker. 



The genitalia are also essentially like those of conradi. 



Agroperina lineosa, new species. 



Reddish luteous with a slightly smoky tinge, sometimes with a trace of 

 purplish. All the normal maculation neatly but not contrastingly written. 

 Median lines simple, fine, the t.p. crenulate. Median shade usually obvious, 

 traceable in all specimens. S.t. line distinct, paler than the adjacent shades. 

 Claviform traceable in a few cases only, lost in most instances. Orbicular 

 usually lost, sometimes outlined by brown scales. Reniform of the usual con- 

 stricted form, rather conspicuously dusky inferiorly — this feature with the 

 angulated median shade forming the most conspicuous feature of the species. 

 Secondaries yellowish, smoky, darkening outwardly, with a well-defined median 

 shade line and usually a discal lunule. 



Expands, 35-41 mm. = i. 40-1. 65 inches. 



Habitat. — Calgary, Alberta, in July ; Brandon, Cartwright, Aweme, 

 Miniota and Winnipeg, Manitoba, all in July. 



A series of 25 males and 5 females ; with an additional male and 

 2 females from Olds, British Columbia, so poor that determination is 

 uncertain ; but which probably belong here. 



