26 



147 Sykphus americanus Wied. Ormsby County, Nevada, and also 

 Stanford University (753). 



1766 Syrphus amalopis OS. Ormsby County, Nevada. 



1767 Lasiophthicus pyrastri L,. Ormsby County, Nevada. 

 .563 Mesooramma geminata Say. Stanford University. 



152 MESOCiRAMMA MARGiNATA Say. Ormsby County, Nevada, and 



also Stanford University (18). 

 151 8PHAER0PI10RIA sui i-riURiPEs Thorn. Ormsby County, Nevada, 



and also Stanford University (16). 

 1220 VoLUCELLA MEXiCANA Macq. In the mountains near Claremont, 



California, common on flowers of Le pi do spar turn squamatum 



in the Fall. 



13 Eristalis hirtus Lw. Stanford University. 



14 Eristalis tenax L. Stanford University. 



1768 Tropipia quadrata Say. Stanford University. 



145 Helophilus latifrons Lw. Ormsby County, Nevada, and also 

 at Stanford University. 



1769 Helophilus mexicanus Macq. Ormsby County, Nevada, and 



also at Stanford University. 

 1207 Spilomyia interrupta Will. In the mountains near Claremont, 

 California. 

 35 PoLYDONTOMYiA CURVIPES Wied. Stanford University. 



CONOPIDAE. 



108 CoNOPS SYLVOsus Will. Orm>iby County, Nevada. 



107 Physocephala affinis Will. Ormsby County, Nevada, and also 



S'-.anford University. 

 106 Physocephala bdrgessi Will. Ormsby County, Nevada. 

 82 ZoDioN FiTLViFRONS Say. Ormsby County, Nevada, and also 



Stanford University (41). 

 80 OccEMYA arbreviata lyw. Ormsby County, Nevada, and also 



Stanford University (998). 

 84 OccEMYA BARONi Will. Ormsby County, Nevada, and also 

 Stanford University (40). 



AGROMYZIDAE. 



1272 Desmometopa halteralis Coq. Claremont, California. 



1273 Desmometopa xM- nigrum Zett. Claremont, California. 



1770 Leucopis isella Lw. Ormsby County, Nevada. 



1771 ftiiLiCHiA INDECORA Lw. Ormsby County, Nevada. 



PIPUNCULIDAE. 

 J772 PiPUNCULUs ARiDus Will. Stanford University. 



