33 



1797 SciOMYZA OBTUSA Fall. Ormsby County, Nevada. 



76 Tetanoceka PicTiPES L,w. Stanford University and also in 



Ormsby County, Nevada. 

 36 Tetanoceka plumosa L,w. Stanford University, and also in 



Ormsby County, Nevada (135). 

 132 Tetanoceka Sakatogensis Fh. Ormsby County, Nevada. 



SCATOMYZIDAF. 



85 ScATOPHAGA furcaTa Say. Stanford University, and also in 



Ormsby County, Nevada. 

 74 SCATOPHAGA STEKCOKARiA L. Stanford University, and also 



Ormsby County, Nevada. 

 103 SCATOMYZA APICATA Thos. Stanford University. 



ANTHOMYIDAE. 



1798 Hydrotaea AKMiPES Fall. Ormsby County, Nevada. 



1799 LiMNOPHORA BOREALis Stein. Ormsbv County, Nevada. 



1800 IviMNOPHORA CYRTONEURiNA Stein. Stanford University, and 



also in Ormsby County, Nevada. 

 101 LiMNOPHORA discreta Stein. Ormsby County, Nevada. 

 997 Ophyra leucostoma Wied. Stanford University. 



90 Hy'LEMyia a.IvCathoe Wlk. Stanford University. 



92 Hylemyia VARrATA Fall. Stanford University. 



65 Mydaea AMOEBA Steio. Ormsby county, Nevada. 



95 Mydaea nitens Stein. Ormsby county, Nevada. 



1801 Anthomyia microptkryx Thom. Stanford University and also 



in Ormsby county, Nevada. 

 1217 Pegomyia affinis Stein. In the mountains near Claremont, 



California. 

 1278 Pegomyia cinerella Fall. Ormsby- county, Nevada, and also in 



the mountains near Claremont, California (1276). 



96 Pegomyia fusciceps Zett. Stanford University. Taken also in 



Ormsby county, Nevada (97), and in the mountains near 

 Claremont, California (1274). 

 46 Pegomyia ruficeps Stein. Stanford University. 



1802 Coenosia argentata Coquillet, new species. 



Black, the coxae, trochanters, base of front side of femora, 

 more than the basal half of middle and hind femora and extreme 

 base of each tibia, yellow, halteres whitish; head as broad as high, 

 densely silvery-white pruinose, the occiput more bluish gray; 

 antennae two-thirds as long- as the face, white pruinose, the third 

 joint nearly twice as long as the second, the upper edge slightly 

 convex, the lower front corner rather blunt, arista almost bare, 

 thickened on the basal fourth, palpi clavate. Body densely silvery- 

 white pruinose, thorax almost devoid of bristly hairs, two pairs of 



