210 BIOLOGICAL SURVEY OF 



P. JUVENILIS Stein. Eagle Lake; Witch Hole Pond, July 



18-30. 

 P. LiTTORALis Mall. Long Pond; Bar Harbor; Green Mt., 



July 16-24. 

 P. LUTEOLA Mall. Echo Lake ; Bar Harbor, July 12-Sept. 7. 

 P. viTTiGERA Zett. Common, July 17-30. 

 P. wiNTHEMi Meig. Bar Harbor; S. W, Harbor, July 30- 



Sept. 8. 



Hydrophoria E.-Desvoirly 



H. PROXiMA Mall. Witch Hole Pond; Salisbury Cove, June 



13-July 18. 

 H. DivisA Meig. Salisbury Cove, July 14. 

 H. uNiFORMis Mall. Salisbury Cove, Aug. 11. 

 H. (Acroptena) ambigua Fall. Bar Harbor; Echo Lake, 



June 14-July 20. 



EuSTALOMYiA Kowarz 



E. BRiziA Walk. N. E. Harbor, July 16 (Minot). 



Hylemyia K.-Desvoidy 



H. ALCATHOE Walk. Bar Harbor; S. W. Harbor, June 13-21. 

 H. ANTiQUA Meig. ^ Onion maggot.' Echo Lake, June 17. 

 H. BRASsiCAE Bouche. 'Cabbage maggot.' S. W. Harbor, 



July 13. 

 H. coENosiAEFORMis Stciii. Commoii, June 17-Aug. 18. 

 H. DEPRESSA stein. S. W. Harbor; Salisbury Cove, June 16- 



July 24. 

 H. iNNocuA Mall. Echo Lake ; Eagle Lake ; Bar Harbor, July 



12-Aug. 16. 

 H. iNORNATA Stein. Common, June 18-July 10. 

 H. LATiPENNis Zett. Common, June 10-July 27. 

 H. PLuviALis Mall. S. W. Harbor, July 13. 

 H. TRiviTTATA Stciu. {H . longicaucla Mall.). Common, July 



15-29. 



Subgenus Chortophila Macquart 



H. ciLicRURA Bond, {fusciceps auct.). Common, June 7- 



Aug. 14. 

 H. LAEVis Stein. Bar Harbor, Aug. 10. 

 H. TRicHODACTYLA Roud. S. W. Harbor ; Bar Harbor, July 



11-19. 



