26 KANSAS UNIVERSITY QUARTERLY. 



tion omits the distinctive characters. Baron Osten Sacken thought 

 it could not be the same as crenatus, and there are exactly the same 

 reasons, now that the female of afflictus is known, why it can not 

 belong to that species. It has never been recognized. 



Note. — The name agilis is preoccupied for the genus DoUihopus: 

 I wish to substitute coloradensis for it in this article. 



