330 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



855. Pseudotephritis vau (Say) 

 Forest Grove, VII-12 (Cole). 



856. Chrysomyza demandata (Fabr.) 

 Corvallis; Forest Grove, VII-5 (Cole). Reported breed- 

 ing in horse-dung. 



857. Chaetopsis aenea (Wied.) 



Hood River, VI-21 (Cole). Apparently rare in the 

 Northwest. 



858. Seoptera vibrans (Linn.) 

 Corvallis, VI-11. 



Family SEPSIDiE 



Fig. 46. Sepsis violacea Meigen. 



Usually small, black, and slender flies, with the abdomen 

 narrowed basally. The wings are hyaline and often with a 

 spot near the apex. They run about actively and are quick 

 of flight. The adults are commonly seen about excrement 

 and decaying vegetation. 



859. Themira latitarsata Mel. 



Corvallis (Cordlev); Forest Grove, IX-28 (Cole). 1917, 

 Wash. Agr. Exp. Sta., Bull. 143, p. 45. 



860. Sepsis luteipes Mel. 

 Forest Grove, III-3 (Cole). 1917, Wash. Agr. Exp. 

 Sta., Bull. 143, p. 29. 



861. Sepsis neocynipsea Mel. 

 Hood River, VIII-21 (Cole). 1917, Wash. Agr. Exp. 

 Sta., Bull. 143, p. 28. 



