Tryon Reakirt on Coloradian Butterflies. 149 



reddish-gray; two transverse black macular bands, of which the first 

 near the base is composed of three spots, one near the costa, another 

 within the cell, ami the last in the medio-inferior interspace; the band 

 is formed of eight small elongate black spots, running from the costa 

 to the inner margin, midway between the cell and the outer margin : 

 an indistinct sub-marginal row of fulvous lunules, sometimes rising to 

 the outer angle. Fringe, light brown; expanse 1.12--l.o0 inches. 



Body, above black, below gray, grayish-brown. 



Antennae black, with incomplete white anuulations, interrupted 

 above ; tip of club, fuscous. 



Female, markings disposed as in the male, but of much greater size; 

 terminal band much broader; color of the disc, lightened on both 

 wings, and between the border, and the transverse macular bands, 

 there is an almost continuous fulvous band, cut by darker veins, from 

 the costa of the primaries to the abdominal margin, indistinct only 

 upon the costal and anal borders of the secondaries ; these last also 

 present an additional black spot within the cell, otherwise the upper 

 surface is the same as in the male. 



Below, primaries orange brown, secondaries grayish-brown diluted 

 with red; the markings larger, but placed as in the other sex. Ex- 

 panse 1.25 inches. 



Var. Female. — The disc of the primaries, and all the light spots of 

 the secondaries, are pale ochraceous. 



Below, yellowish-ochreous, the secondaries sprinkled with brown 

 atoms; the rest as in the preceding. 



Closely allied to both Epixanlhe, and Helloidcs, but constantly dis- 

 tinct from either.* 



♦Another related form is the following: — 



Polyommatus Mariposa, now sp. 



Male, upper surface, lustrous brown, a darker border extends all around the 

 outer margins, upon which, on the secondaries there are vestiges of one or two 

 fulvous anal lunules; a narrow black discal arc upon each wing. 



Underneath, primaries, yellowish-gray, becoming pale grayish-brown on the 

 costa: a terminal grayish brown border, interior to which there is a transverse 

 band of six brownish Mack triangles, apices pointing inwardly, edged interior- 

 ly with a whitish streak, between these and the base, eleven brownish black 

 spots, arranged as in Castro. 



Secondaries, grayish In-own. Four transverse macular bands, all black, the 

 three first edged with white posteriorly, the fourth on both sides: they are ar- 

 ranged thus — the first, near the base, is formed of three widely separated spots, 

 the first two round, the third, an oblong streak ; the second, of four much larger 

 spots, one near the costa, another within the cell, anil the other two respective- 



