AMERICAN LEPIDOPTERA. 37 



black line, across the middle of the front, the vertex usually a little smoky. 

 Collar as a rule paler than ground color, sometimes whitish, usually with a red- 

 dish flush toward a subapical black line, which in some examples is almost obso- 

 lete. Thorax more or less white powdered, not definitely marked, patagiae black 

 edged at the base of the wings. Abdomen with a reddish flush in well preserved 

 specimens. Primaries more or less powdered, with smoky or blackish scales, 

 varying in tint and often clouding the median space. Basal line geminate, black- 

 ish, marked through the costal cell only. A black longitudinal line extends fiom 

 the base through the submedian interspace half way to the t. a. line, and is then 

 obliquely extended by a black or blackish shade to the costa within the origin 

 of the t. a. line. The space included in this boundary at the base of the wing is 

 whitish or much paler than the rest of the wing, further emphasized by a rusty 

 shading just above the black streak. T. a. line geminate, black, the outer por- 

 tion most sharply defined, outcurved in the interspaces and quite sharply toothed 

 inwardly on the veins, as a whole a little outwardly oblique. T. p. line lunulate, 

 geminate, outer line smoky, indefinite and quite even, lines black, often dis- 

 connected and tending to obsolescence ; as a whole the line is outwardly exserted 

 over the reniform and almost upright below that point. S. t. line marked by a 

 series of triangular black, preceding spots, except at the costa where a smoky 

 shade precedes it. This series of spots is in a way the most prominent and cer- 

 tainly the most constant feature of the wing. A series of terminal spots which 

 are not at the extreme edge of the wing and which are elongate though not con- 

 nected into a line. A more or less diffuse median shade, almost or quite filling 

 the space between the ordinary spots, parallel with and close to t. p. line below 

 the reniform. Clavifoi-m black ringed and sometimes almost black filled, small, 

 pointed, not reaching the middle of the median space. Orbicular upright, oval, 

 of good size, as pale as any other part of the wing, black ringed except supe- 

 riorly ; below the median vein there is attached to it a smaller, less prominent, 

 suborbicular, which is usually smoky centered and may become entirely obscured. 

 Reniform large, oval, only a little kidney shaped, black ringed, centered with 

 smoky in which is a reddish shading. The veins are more or less smoky. Sec- 

 ondaries smoky, with a reddish tinge, sometimes quite pale. Beneath with a 

 reddish flush, powdery, both wings with an outer smoky line and round discal 

 spot. 



Expands 40-46 mm. = 1.60-1.80 inches. 



Hab. — Pullman, Washington, October, March and April (C. V. 

 Piper); Garfield County, Colorado, 4000 feet (Bruce); Glenwood 

 Springs, Colorado, October, March, April (Barnes); 1«[. W. British 

 Colund)ia (Ottolengui) ; Soda Springs, California, October 10th 

 (Hy. Edwards). 



Twenty specimens, representing both sexes, are at present before 

 me and I have seen others. They vary in the amount of ccnitrast 

 and the relative brightness of the maculation. In some everything 

 is clear cut, every line and shade recognizable at a glance, in others, 

 all, save the ordinary spots and the s. t. line, is obscured, and be- 

 tween these extremes the others range. In wing form the species is 



TRANS. AM. ENT. SOC, XXVII. AUGUST, 1900. 



