128 The University Science Bulletin. 



alone the writer is confidently basing the distinctness of thefi6 spe- 

 cies. Among the specimens of viridis from Colorado and Utah there 

 may be one or two that are the females of this species, but not being 

 as sure of their position as of these three males, they are left in the 

 former group. 



Holotype in collection of Mr. E. L. Dickerson. 



Paratypes in collection of Doctor Ball and the Snow Collection. 

 University of Kansas. 



