hares. 



banks: i\sammo( hahidak. 231 



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



No such space; nietanotuin not hairy Gymnochai 



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



Agenoideus. 

 No comb; metanotum fiat at base; larger black species .. AWocz/Monyx. 



22. CljTJeus of female strongly emarginate in middle; pronotum arcuate 



behmd; a comb to front tarsi Lophopompilm 



Clypeus not emarginate 93 



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



Psammochares. 

 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 . '. aethiops. 



LoPHOPOMPiLus AETHIOPS (Cresson). 

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



LoPHOPOMPiLus CLEORA Banks. 



Calif.: DyerviUe, 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 belHcosics'. 



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 scelesfus. 



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



