168 Proceedings of the Biological Society of Washington. 



Color: Black, a white band across the face crossing the lower third of 

 front and an oblique ivory white dash on the inner branch of the outer 

 sector of the corium. Tibiae rufous. 



Genitalia : Female segment short, broadly rounding posteriorly, slightly 

 elevated on the median line giving the appearance of a slight notch. 

 Male valve broadly rounding, plates narrow, triangular, longer than 

 wide, their apices inclined to be finger-like. 



Described from two females and two males collected by the writer at 

 Medford, Oregon. 



