272 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Se*. 



Family PIPUNCULID^ 



Fig. 28. Pipunculus atlanticus Hough. 



Small flies with rather large heads composed almost en- 

 tirely of the compound eyes. The wings are long and the 

 venation like that of the Conopidae. The body is usually 

 almost bare of pile. The adults can be taken by sweeping 

 plants and grass. Some are known to be parasitic in Jassids 

 in the larval stages. 



429. Chalarus spurius (Fall.) 

 Hood River, VII-28 (Cole). 



430. Pipunculus 19 atlanticus Hough 



Hood River, VI-6 to VII-28 (Cole). These specimens 

 cannot be separated from the eastern species. They are the 

 "slightly smaller" form with blackish antennae mentioned by 

 Cresson in his paper on this group. 



19 In this large genus there are evidently many undescribed species in the 

 west. There is not sufficient material at present to make sure of some of 

 the species collected in Oregon; at least six forms were taken at Hood River. 



