1887.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 451 



Collar not tipped with black. 



Robust; abdouieu short, plump ; priuiaries short, obtuse; dark blackish brown- 



liQe«^'i'"t facula! 



Less robust ; abdomen more slender ; primaries longer ; less obtuse. 



T. a. line crossing the costal space, which is not strongly contrastino- in color. 

 Dull lateous, powdered with black ; s. t. space not darker than median space ; 



orbicular open obsekvabilis. 



Color as before ; s. t. space darkest ; orbicular tending to become complete su- 

 periorly DISCOIDALIS. 



Deep purplLshbrown ; s. t. space evidently paler than median space. 



CRENULATA. 



T. a. line not crossing the broadly pallid costa. 



Bright red-brown ; costa and collar yellow confusa 



The structural characters couimou to the group are, smooth front un- 

 armed, DOQ-spinose anterior tibia ; simple male antenna; subdepressed 

 form; thorax with distinct anterior and posterior divided tufts. The 

 palpi project straightly forward, and form a short snout, less distinct, how- 

 ever, than in the cupida group. The maculation is after one general type. 

 The orbicular is always V-sliaped, opening to the costa, which is gen- 

 erally paler than the rest of the wing, and the cell between and around 

 stigmata is usually darker and often black. In addition to the color 

 characteristics given above, the males show obvious differences in the 

 form of the genitalia, well authorizing the species newly created. These 

 differences need not now be detailed, and only in the new species will 

 they be referred to. 



A. binominalis Smith, sp. nov. 



Primaries red-brown; costa and collar inferiorly yellowish ; collar 

 tipped with black ; cell around the ordinary spots black. Transverse 

 lines geminate; t. a. line not crossing costal pale space, else distinct; 

 t. p. line punctiform, barely traceable; s. t.line pale, interrupted, pow- 

 dery. Stigmata pale-ringed, orbicular invaded by costal pale space; 

 reniform slightly cinereous; claviform faintly outlined in pale. Abdo- 

 men and secondaries smoky fuscous. Side pieces of S short and broad, 

 superiorly prolonged into a cylindrical finger-like process; inferiorly 

 into a short acute spur. The clasper consists of a single curved hook 

 from the superior portion of side piece. Expands 1.5 inches (38"""). 



Habitat— Culiforma, Washington Territory. 



This is the exsertistigma of the Edwards collection, and like one speci- 

 men so labeled in Mr. Tepper's collection. The typical exsertistigma is 

 as Mr. Morrison described it, much like alternata in color and appear- 

 ance. 



A. crenulata Smith, sp. nov. 



Primaries deep dark brown ; basal and s. t. space slightly paler, pow- 

 dered with gray; costal space paler red brown; ordinarv spots pow- 

 dered with gray; claviform outlined with pale yellow scales. Trans- 

 verse lines distinct; t. a. lines geminate, included space pale; t. p. line 

 crenulate, course as in the preceding species; s. t. line distinct, pale 



