THE MOUNT DESERT REGION 419 



H. spizellae Hut'k. Corfield at melon bait, June 22. 



H. trichodactyla Roncl. S. W. Harbor ; Bar Harbor, July 



11-19. 

 H. trivittata Stein. (H. longicauda Mall.). Common, July 



15-29. 

 H. sp. Around Breakneck beating catkins, Apr. 25, F300. 



Musca Linnaeus 



M. domestica Linn. House fly. Not common, July 10-Sept. 

 22. This is the fly that gets the blame for man's unsanitary 

 habits. 



Orthellia Desvoidy 



0. caesarion Meig. S. W. Harbor ; Eden ; Narrows, July 23- 

 Sept. 12. 



Pyrellia Desvoidy 



P. serena Meig. Salisbury Cove, July 15. Station P414. 



Morellia Desvoidy 



M. micans Macq. Common, June 9-Aug. 25. 



Lispe Latreille 



L. albitarsis Stein. Common, June 13-Sept. 13. 



L. johnsoni Aldr. Newport Cove; Great Head, Sept. 13. 



L. sociabilis Loew. Witch Hole Pond, June 13. 



L. TENTACULATA De Gr. Witch Hole Pond; S. W. Harbor; 



Newport Cove, June 13-Sept. 13. 

 L. uliginosa Fall. Bar Harbor, June 13-Aug. 29. 

 L. sp. From swallow's nest (Br.), June 1, '38. 



Mesembrina Meigen 



M. latreillei Desv. On lab window, Sept. 22. 



Hoplogaster Eondani 



H. nigritarsis Stein. Common, July 18-30. 



