150 Tryon Reakirt on Color ad ian Butterflies. 



Pyrgus Ricara, Edwards sp. 



Hab. Empire City, Colorado Territory, (Coll. Tryon R lakirt.) 



Pyrgus Oileus, Linne sp. 



Hab. Rocky Mountains, Colorado Terr., (Coll. Tryon Reakirt.) 

 One of the commonest of species ; my specimens are very much 



paler in color than any of Oileus that I have ever seen, otherwise they 



do not differ. 



Nisoniades Catullus. Fabr. sp. 



Hub. Rocky Mountains, Colorado Terr., (Coll. Tryon Reakirt.) 



Hesperia Huron. Edwards. 



Hab. Rocky Mountains, Colorado Terr., (Coll. Tryon Reakirt.) 



Hesperia Napa. Edwards. 



Hab. Empire City, Colorado Territory, (Coll. Tryon Reakirt.) 



Hesperia Omaha, Edwards. 



Hab. " Pike's Peak" Edwards. 



Hesperia Kiowah, nov. sp. 



Male. Uniform dull brown on both sides, no marking, save the nar- 

 row black sexual bar on the primaries. Expanse 1.19 inches. 



Hab. Rocky Mountains, (Coll. Tryon Reakirt.) 



Hesperia Garita, nov. sp. 



Upper surface, uniform dark brown, glossed with tawny, at the ex- 

 tremities. 



Under surface dark brown, costa and apex of primaries, tawny : the 

 secondaries from the first median veinlet upward are tawny-ashcolored: 

 the rest brownish-black glossed with tawny at the anal angle. The 

 fringe is brown ; a narrow white or whitish line covers its inner half, 



]y in the medio-inferior. and sub-median interspaces; both of these rows form 

 nearly straight lines: the third is very irregular, and composed of seven spots, 

 the fifth being round, the others lunate, and is midway between the cell and 

 the outer margin: the fourth contains seven spots, and is sub-marginal ; of 

 these the first is minute, the five following sagittiform, and the last lunate. 

 Fringes brown: expanse 1.20 — 1.25 inches, 



Body black above, covered with brown hairs, whitish-gray below: antennce 

 black, ringed and tipped with white. 



Female. Upper surface fulvous, spotted as in Castro. 9 with a broad brown. 

 ish border : on the secondaries this contains a continuous row <>f fulvous cres- 

 cents, extending from costa to anal angle; a brown shade covers the base of 

 each wing and the abdominal marginal of the secondaries; otherwise as in the 

 male. 



Sab.— California, (Coll. Tryon Reakirt.) 



