454 rROCEEDINGS OF THE XATTONAL MUSEUM. 



more or less marked by dusky scales, the median also accompanied by a 

 series of pale scales. Subtermiual line pale, defined by the uniformly 

 dusky terminal space and by a series ofvariably evident sagittate black 

 spots or dashes. A series of brown or blackish Innules, beyond which 

 the fringes are pale, with a narrow, dusky, interline. Claviform dis- 

 tinct, pointed, usually reaching the center of the wing in the female, a 

 little shorter in the male, and sending off a slender black line from its 

 tip through the snbmedian interspace. Orbicular oblique, oval or 

 oblong, moderate in size, usually incomplete above, defined by a narrow 

 black ring, within which is a paler annulus, the center of the ground 

 color or paler. Reniform large, kidney-shajied, scarcely extending 

 below the median vein, black ringed, annulate with pale, with a dusky 

 center, which may be encroached upon by pale scales; there is a tend- 

 ency to a little backward spur along the median \ein from the lower 

 margin of the spot. Cell, except for the ordinary s])ots, filled with 

 smoky or black. Secondaries whitish in the male, with a narrow, 

 smoky, outer border; smoky gray and almost uniform in the female; 

 fringes white in both cases. Beneath whitish, powdery, disk of pri- 

 maries smoky and with a distinct discal spot and incomplete outer line. 

 Secondaries paler, with a small discal spot only. 



Expanse, 31 to 35 mm. = 1.24 to 1.40 inches. 



Habitat. — Phoenix, Arizona, November 4 to 11 (Griffith); Pullman, 

 Washington, September 27 (Piper). 



Seven specimens, of which half are male and half are female, one 

 example being the most complete possible example of a union of both 

 sexes. The left side from the median line of the body is. completely 

 male, the right side is as completely female. Ovipositor and claspers 

 are both present and the differences in antennal structure is marked. 

 The two pairs of wings afford a perfect illustration of the sexual color 

 differences and make it certain that the two are correctly associated. 



So far as the material indicates, the variation is mostly sexual, the 

 male being in all respects the brighter, with greater contrasts and a 

 predominating yellow shade. The female is more uniformly gray, and 

 the contrasts are not nearly so great, the costal region seeming whitish 

 rather than yellow. 



The species is allied to x)erexcellens ; but is smaller, with differently 

 shaped ordinary spots and much whiter secondaries. From henrietta 

 it is distinguished by more pointed primaries, much stronger color con- 

 trasts, the sagittate spots before the subterminal line, and the form of 

 the ordinary spots. 



Type.—Cskt. No. 4807, U.S.N.M. 



49- CARNEADES FCEMINALIS, new species. 



Ground color ashen gray, shaded with smoky or blackish. Head 

 gray interiorly, vertex smoky brown. Collar with a broad, black median 

 band which is tipped with gray and below which there is a reddish 



