THE MOUNT DESERT REGION 399 



H. houghi Coq. Station F374. 



H. incerta Mall. Bar Harbor mating pair, Sept. 20 (Br.). 

 .Long Pond, Aug. 21. 



H. philadelphica Macq. N. E. Harbor (Minot) ; Bar Har- 

 bor, July 1-Aug. 10. 



H. sheldoni Coq. Witch Hole Pond, July 30. 



Sapromyza Fallen 



S. annulata Mel. Bar Harbor; Echo Lake; S. W. Harbor, 

 June 15-July 12. 



S. brachysoma Coq. Bar Harbor, June 8. 



S. obtusilamellata Mall. Bar Harbor, June 7. 



S. quadrilineata Loew. Bar Harbor, July 22. 



S. rotundicornis Loew. Echo Lake ; Bar Harbor ; N. E. Har- 

 bor, July 17- Aug. 11. 



S. serrata Mall. Bar Harbor, June 11. 



S. pictiventris Mall. Station F343. 



Periscelidae 

 Very little is known about this group. 



Cyamops Melander 



C. nebulosa Mel. Salisbury Cove, July 13, 1923. 



Drosophilidae. The Small Fruit Flies 



This family which has done so much for genetics frequents 

 fermenting fruit and the like. 



Chymomyza Czerny 



C. amoena Loew. Salisbury Cove, July 18. 



Scaptomyza Hardy 



S. graminum Fall. Narrows; S. "W. Harbor, July 13-Sept. 



6. 

 S. terminalis Loew. Corfield at light, Aug. 16. 



