232 Journal New York Entomological Society. [Voi. xv, 



fore wings are not so narrow and the hind wings are not so strongly 

 excavated on the costal edge. The markings also are much more 

 distinct, being without the blurring yellow shades of conradti, while 

 the lower side of the thorax and abdomen is not heavily shaded with 

 blackish brown ; the subterminal spots of the fore wings form a con- 

 tinuous row in the cJ* and are more irregular in position. 



The female is larger and paler than the male, but essentially sim- 

 ilar ; the subterminal dots of the fore wing are partly wanting, but 

 their irregular course is marked by the contrast between the yellowish 

 subterminal shade and the darker terminal color. 



Clisiocampa luteimargo, new species. 



Pale straw yellow ; fore wings with two parallel dark brown lines, the outer 

 slightly wavy, the space between them more or less filled in with brown irrorations, 

 sometimes almost solidly so ; hind wings with the basal half faintly brown shaded, the 

 outer half clear straw- yellow. Beneath straw-yellow, a common mesial brown line, 

 within which the basal half of both wings is more or less completely filled in with 

 brown shading. Expanse, $ 27 to 32 mm., 9 37 ™ni- 



3 f^^, 2 9 ?, Mexico City, Mexico (R. Miiller, No. 885 ; Wm. 

 Schaus coll.). 



Type. — No. 10447, U. S. National Museum. 



The species is allied lofragilis Stretch, but I have seen no form 

 of that species in which the margins of both wings above and below 

 were without irrorations. It is also allied to azteca Neumoegen, but 

 has a very different appearance, and none of my 26 azteca vary in this 

 direction. 



Family GEOMETRID^. 



Pygmaena simplex, new species. 



Brownish gray, violaceous tinted ; the fore wings have two broad smoky brown 

 lines, the inner faint, the outer far removed from the margin ; a rounded discal dot 

 on both wings. Expanse, $ 26 mm. ; 9 19 mm. 



Eleven specimens, 10 S'<S' and one ?, Laggan, Alberta, Canada 

 (Wm. Barnes, Dyar and Caudell), Yellowstone Park, Wyoming (W. 

 D. Kearfott through G. W. Taylor). 



Type. — No. 10442, U. S. National Museum. 



This is the first record of the genus Fygmana Boisd. in America. 

 A single species is known in Europe, P. fiisca Thunberg, with an Al- 

 pine distribution. Our species is larger than the European form, paler 

 colored, less brownish, and the female is more nearly the color of the 

 male. The females in both species have the wings partly aborted and 

 are more yellowish in color. 



