146 Tryon Reakirt on Coloradian Butterflies. 



a diagnosis. It may be that it is identical with C. Inornata Edw., or 

 C. Ochracea, Edw., or some Northern species.* 



Thecla Mopsus, Ilubner sp. 



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



Male differs from Boisd. et Lee. figure, in the presence of two or 

 three red lunules upon the anal angle. 



Female has the upper surface sometimes immaculate, sometimes 

 with very indistinct red lunules upon the anal angle as in the male, 

 but all of my specimens are concolorous upon the fore wing: I have 

 never seen examples from this locality, with the red patches upon the 

 primaries as represented in the figure above referred to. 



The under side conforms to the specific type. 



Thecla Niphon, Ilubner, sp. 



Hah. — Rocky Mountains, Colorado Terr., (Coll. Tryon Reakirt.) 

 The specimens agree in all particulars with others from the Eastern 



States. 



Lycaena Rapahoe, nov. sp. 



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



Male. Upper side, pale brown, glossed with blue nearly to the 

 margin on both wings, leaving a broad terminal border of the ground 

 color; this is edged exteriorly with a very narrow and black line, and 

 beyond this, a white or whitish fringe : an indistinct row of blackish 

 spots, marks the termination of the blue glossing upon the hind wings, 

 and the beoiunin^ of the brown border : a black bar at the end of the 

 cell of the fore wings. 



Female. Upper side, pale or deep brown powdered with blue atoms 

 only at the base, the rest of the markiugs as in the male. 



Under side, ash gray, sometimes darker in the male : on the 

 primaries a large discoidal lunule, and a transverse row of six large 

 rounded spots, all jet black, and ringed with white ; sometimes the last 



* Ccenonympha pamphiloid9s, nov. sp. 



Hab. — California, (Coll. Tryon Eeakirt.) 



Upper surface very similar to Pamphilt(n; the cilise, however are considerably 

 longer. 



Under surface of the primaries as in Pamphilus; secondaries mottled greenish- 

 brown from the base to the middle, abruptly terminated by a very irregular 

 margin, adjoining which, on the upper half, from the eosta, a yellowish-gray 

 patch: hinder half of wings, of the same color as the basal portion, but very 

 much diluted in tone: a sub-marginal row of six white spots, each encircled 

 by a brownish-green ring — all minute, but still very distinct. Expanse 1.13— 

 1.18 inches. 



