788 ZOOLOGY— INSECTS. 



OARISMA, Scud. 

 OAEISMA GARITA, Reakirt. 



Hcsperia Garitd, Reakirt, Proc. Eat. Soc. Phila., 1867. 

 T. Hylax, Edw., Trans. Am. Eut, Soc, 1871. 



This is a rather rare species, and so far has not been taken outside of 

 Colorado. A closely allied species, undescribed, unless a variety of 0. 

 Powesheik, is, however, found in the Yellowstone region of Montana. 0. 

 Garitd was collected by the expedition in the South Park. It occurs also 

 at Twin Lakes, and may be found during- June and a part of July. 



POTANTHUS, Scud. 



rOTANTHUS OMAIIA, Edw. 



Eespcria Omaha, Edw., Proc. Ent. Soc, Phila., 1SC3. 



Habitat: "Pike's Peak, Colorado; Kanawha County, West Virginia" 

 (Edwards). 



I do not know this species. 



AMBLYSCIRTES, Scud. 



AMBLYSGIRTES KIOWAH, Reakirt. 



Habitat: "Rocky Mountains." With this species, I am also unac- 

 quainted. 



OCYTES, Scud. 



OOYTES RIDINGSI1, Reakirt, 



The male of this species appears to be undescribed. It is very similar 

 to the female, and differs chiefly in being of a brighter fulvous above, and 

 in the possession of the black, velvety, discal bar, or stigma, on the prima- 

 ries ; this shows beneath as a blackish line. The species was found at Twin 

 Lakes in July, generally upon or near the Dwarf Lupines, which grew with 

 bunch grass and low herbage, in open spaces between the plants of sage 

 brush. 



Altogether thirty-one specimens were taken. 



