CATALOGUE OF INSECTS. 697 



TRAGINOPS Coq. 

 T. irrorata Coq. "New Jersey." 



LOBIOPTERA Muhlberg. 



L. indecora Loew, Atco, VI, 6, Woodbury, VI, 7, Buena Vista, VI, 11, Ava- 

 lon, VI, 9. 



CBRATOMYZA Schiner. 



C. dorsalis Loew. Riverton, V, 14, VII, 3, X, 10. 



LEUCOPIS Meig. 



L. simplex Loew. Clementon, VIII, 6, Avalon, VI, 9, VII, 22, Riverton, 

 VI, 19. 



L. nigricornis Egger. Del. Water Gap, bred VII, 20, from willow galls col- 

 lected, VII, 11. 



DESMOMETOPA Loew. 



D. m-nigrum Zett. New Brunswick, VIII, 26 (Sm). 



D. halteralis Coq. Anglesea, VII, In, Clementon, V, 12. 



AGROMYZA Fallen. 



A. coronata Loew. Avalon, VII, 22. 



A. melampyga Loew. Jamesburg, VII, 4. 



A. simplex Loew. Atco, VI, 4, Riverton, VII, 24, Newark, VI, 13. 



A. angulata Loew. Newark, VI, 13, Del. Water Gap, VII, 8. 



A. seneiventris Fall. Westville, VII, 21. 



A. dimidiata Walk. Ocean Co., V (Sm). 



A. magnicornis Loew. Riverton VII, 17. 



A. parvicornis Loew. Riverton, VI, 20. 



A. jucunda V. d. W. Riverton, IX, 17. 



OCHTHIPHILA Fallen. 



O. polystigma Meig. Newark, V (Sm), Westville, VII, 21. 

 O. elegans Panzer. Clementon, V, 30. 



Family BORBORIDiE. 



Medium to small black, brown or yellowish flies, having a short, quick flight. 

 They are almost invariably found about decomposing organic matter, and often 

 hover in clouds about dung or sewage where their larvte live. 



