338 



CALIFORNIA ACADEMY OF SCIENCES [Pkoc. 4th Se». 



Family DROSOPHILID^ 



Fig. 51. Drosophila busckii Coq. 



Small, usually yellow, flies, with a short and broad abdo- 

 men. Costa of the wing microscopically broken twice. Arista 

 of antennas plumose, the fronto-orbital bristles proclinate. 

 They are often called "pomace-flies", and are found about 

 cider mills and wine presses, also around decaying or fer- 

 menting fruit. The larvae live in pomace and in the scum of 

 fermenting juice. A few have quite different habits, one 

 species has been reared from mealy bugs (Pseudococcus) , 

 one from spider's eggs and one is parasitic on the nymphs of 

 the spittle bug, Clastoptera obtusa. 



913. Phortica humeralis (Loew) 

 Hood River, VI- 16 (Cole). 



914. Scaptomyza apicata (Thorns.) 

 Corvallis; Forest Grove, V-ll (Creel); Hood River, 



IX-29 (Cole). 



915. Drosophila buskii Coq. 

 Forest Grove, VI 1 1-27, reared from clover heads (Rock- 

 wood) ; Corvallis, VI-15 and IX-14. 



916. Drosophila funebris (Fabr.) 

 Corvallis, 111-12 and IX-14; Hood River, X-ll (Cole). 



