banks: psammocharidae. 237 



abdomen rather short; legs of moderate length, with many stout spines, 

 inner spur of hind tibia two thirds of the basitarsus, fourth joint of hind tarsus 

 plainly shorter than the fifth, front tarsus with very short spines, second joint 

 with only one at tip. Wings pale, darker on tips, the marginal cell rather 

 long, second submarginal nearly quadrate, third about as large, but little 

 narrowed above, other veins about as usual. The male has the inner spur 

 of hind tibia broader than usual. 



Length 8 mm. 



Nannopompilus. 



Bluish or greenish; body short; male shows a short basal piece to genitalia 

 with an angulate cleft, the ventral plate carinate -padrinus. 



Blackish; body more slender; the male shows a long slit with sinuous edges, 

 the ventral plate not carinate consimilis. 



Blackish, basal part of abdomen more or less reddish rufibasis. 



Nannopompilus padrinus (Viereck). 



Calif.: Claremont, Ukiah, ^Mendocino Co., 30 September, Ingleside, 

 25 July. 



Nannopompilus rufibasis (Banks). 

 "Wash.: 01\Tnpia (Kincaid), agreeing with eastern specimens. 



Nannopompilus consimilis (Banks). 



^Yash. : Wenas Valley, Yakima River, July, 1882; Oregon: The 

 Dalles, 23 June, 1882.' 



SOPHROPOMPILUS. 



9 



1. Legs noticeably hairy; four comb spines on first tarsal joint 2 



Legs barely hairy 3 



2. Tibiae with long hairs, and a few on tarsi bradleyi. 



Few if any hairs on tibiae tumifrons. 



3. Pronotum slightly but distinctly angidate behind subangulatus. 



Pronotum broadly arcuate behind parvus. 



