HYMENOPTERA FROM LOWER CALIFORNIA. 9 



POMPILIDyE. 



PoMPiLUS yETHiops Cress. Two female specimens. 

 El Paraiso, L. Cal. {Haines). May. 



PoMPiLus TENEBROsus Crcss. San Jorge, L. Cal. 

 {Haines). March. Two females. 



Planiceps concolor Sm. Two females, which I refer 

 doubtfully to this species, as they are much larger than 

 the measurements given by Smith, although otherwise 

 agreeing with the description. San JuHo and Magdalena 

 Island, L. Cal. {Haines). March and April. 



Mygnimia mexicana Cress. San Julio, L. Cal. 

 {Haines). April. One small female. 



Pepsis ornata Lep. San Jose del Cabo, L. Cal. 

 {Eisen). One male. 



Pepsis rubra Drury. Ten females, five males. San 

 Jose del Cabo {Eisen), and CalmalH Mines, L. Cal. 

 {Haines). May; Hermosillo, Sonora {Eisen), April. 



SPHECID^. 



ScELiPHRON Luc^ Sauss. San Jose del Cabo. L. 

 Cal. {Eisen). Three females, one male. 



ScELiPHRON {Chalyhion) c.eruleum Linne. San Jose 

 del Cabo, L. Cal. {Eisen). One male. 



Sceliphron {Chalybion) Zimmermanni Dhlb. San 

 Jose del Cabo, L. Cal. {Eisen). One female. 



Ammophila varipes Cress. Three females. San 

 Quintin (Ma}^), San Esteban and Lower Purisima, L. 

 Cal. {Haines). April. One male, San Jose del Cabo, 

 L. Cal. {Eisen). 



Ammophila LUCTUOSA Sm. Two females. San Jorge, 

 L. Cal. {Haines). March. 



Sphex caliginosus Er. One female. Hermosillo, 

 Sonora {Eisen). April. 



