600 HOWARD 



Leria -pectinata Loew. 

 The larvae of the flies of this genus are known in Europe to 

 occur in dung and in fungi, presumably decaying fungi. The 

 flies lay their eggs in the excrement of dogs and other animals. 

 The only observations upon this species made in the course of 

 these investigations were by Dr. A. D. Hopkins, who collected 

 specimens in a privy at Golden Gate Park, San Francisco. 



Tephrochlamys rufiventris Meig. 

 This species, common to Europe and North America, was 

 taken in a privy at Newport, Oregon, also by Dr. Hopkins. 



