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



Family PSILIDiE 



Fig. 47. Psila rosce (Fabr.) 



Small slender flies with long antennae, usually shining and 

 with a small clypeus. There are no oral vibrissas Some of 

 the larvae are known to live in roots and various plant galls. 

 Melander records 38 species and subspecies in his recent 

 synopsis of the family (Psyche, XXVII, no. 5, 1920). 



870. Loxocera collaris Loew 

 Reported from Oregon by C. W. Johnson. 



871. Chyliza leguminicola Mel. 



Forest Grove, IV-23 (Rockwood). 1920, Psyche, 

 XXVII, p. 99. Mr. Rockwood collected this species on 

 plants of Lupinus polyphyllus Lindl., and found pupae 

 attached to the lower part of the plant in July. 



872. Chyliza scrobiculata Mel. 



Whitman Nat. Forest, VII-14 (Chamberlin). 1920, 

 Psyche, XXVII, p. 98. 



873. Psila atrata Mel. 



Hood River, VI-10 (Cole). 1920, Psyche, XXVII, 

 p. 97. 



874. Psila microcera Mel. 



Duffy's Prairie, VII-26 (Lovett) . 1920, Psyche, XXVII, 

 p. 95. 



875. Psila rosae (Fabr.) 

 Corvallis (Moznette). This is called the "carrot-rust 

 fly" and is sometimes of economic importance. 



