banks: psammocharidae. 231 



20. A distinct malar space between eyes and base of mandibles 21 



No such space; metanotum not hairy Gymnochares. 



21. A comb to front tarsi of female; metanotum oblique; small species. 



Agenoideus. 

 No comb; metanotum flat at base; larger black species. . Alloc ij phony x. 



22. Clj^jeus of female strongly emarginate in middle; pronotum arcuate 



behind ; a comb to front tarsi Lophopompilus 



CljTDeus not emarginate 23 



23. A strong comb to front tarsus of female; metanotum hairj' above. 



Psatnmochares. 

 No comb to front tarsus 24 



24. Metanotum not hairy above; marginal cell much more than its length 



from tip of the wing Pompiloides. 



Metanotum plainly hairy above; marginal cell more acute at tip, and 

 nearer to wing tip Anoplius. 



Lophopompilus. 



9 



Four long spines in comb on first tarsal joint cleora. 



Three rather short spines, hardly forming a comb on first tarsal joint, .aethio'ps. 



Lophopompilus aethiops (Cresson). 

 Calif.: Exeter, 30 July; Washington (Kincaid). 



Lophopompilus cleora Banks. 



Calif. : Dyerville, July, Los Angeles, 3 May; Wash. : Camp Umatilla, 

 26 June, 1882. 



Psammochares. 



9 



1. Pronotum arcuate behind; three spines in tarsal comb on first joint; 



larger species bellicosus. 



Pronotum angulate behind 2 



2. With three spines on first tarsal joint in the comb eureka. 



With four spines on first tarsal joint 3 



3. Spines of comb on second joint longer than that joint scelestus. 



Spines of comb on second joint shorter than that joint anoplinus. 



