66 Journal New York Entomological Society. [Voi. xvii. 



some that were almost as well if not as conspicuously marked, and I 

 divided them into two series which stood sharply enough defined when 

 once separated. 



The new species differs from both alia zxv(\ pacific a in more even 

 coloration ; in the obvious or even conspicuous median shade ; in the 

 even, rather conspicuous s. t. line preceded by a distinct shade, and 

 in the sharp angle formed by the t. p. line on vein 6. 



Xylomiges argus, new species. 



Head, thorax and primaries pale, powdery ash gray. Head and thorax with 

 darker gray powderings, so as to give the surface a dusty appearance. Collar with a 

 somewhat darker gray line. Abdomen yellowish. Primaries without contrasts, yet 

 all the maculation fairly well traceable. Basal line geminate, darker gray, extended 

 to vein i. T. a. line geminate at its inception, the inner line tending to become 

 lost, the outer dark gray, a little diffuse, with a very long outward angle in the sub- 

 median interspace and a smaller above the margin. T. p. line single, broken, out- 

 wardly extended on the veins, with a long inward angle in the submedian interspace, 

 not quite meeting that of the t. a. line. S. t. line pale, fragmentary, best marked by 

 a series of blackish preceding spots in the interspaces. A blackish terminal line, 

 broken by yellowish points on the veins. Claviform short but broad, obscurely out- 

 lined by dark scales. Orbicular round or nearly so, a little paler, with a central dusky 

 spot. Reniform moderate in size, broad, a little constricted at middle, oblique, in- 

 completely outlined, usually with a few rusty scales outwardly. As a whole the wing 

 is a little darker over costal region from base to t. p. line, and there is a tendency to 

 an oblique dusky shading from lower edge of reniform to the outer margin just below 

 apex. Secondaries white, with small dusky terminal lunules. Beneath white, pri- 

 maries powdered with gray, all wings with a darker discal spot and a tendency to an 

 extra-median line. 



Expands, 1. 32- 1.42 inches = 33-35 mm. 



Habitat. — California : Witch Creek 11, Argus Mts., V. 



One male and four females in good condition ; the Witch Creek 

 examples through Mr. R. F. Pearsall, the Argus Mts. examples from 

 Mr. . T. Kemp. 



This is the narrowest winged species we have and the primaries 

 are more nearly parallel than in any other species. The markings are 

 very obscure and at first sight the species looks only a little mottled, 

 dusty gray. 



The antennae of the male are serrate and fasciculate, and the 

 species thus belongs with indurata and curialis, while differing 

 markedly from both. 



Xylomiges nicalis, new species. 



Head, thorax and primaries a soft bluish gray, in the males with a faint reddish 

 tint and a somewhat glossy surface. Head and thorax without obvious maculation. 



