THE MOUNT DESERT REGION 367 



PoGONOMYA Rondani 



P. FLAviPENNis Fall. Wltcli HoIg Pond; S. W. Harbor, June 



13-July 30. 

 P. PROBOsciDALis Mall. Eclio Lake, July 12. 

 P. FLAviNERVis Mall. S. W. Harbor, June 22-24. 



Stomoxys Geoflroy 



S. CALCiTRANS Liuu. Biting house-fly. Bar Harbor ; Salisbury 

 Cove, July 31-Aug. 10. 



Haematobia St. Fargeau & Serville 



H. iRRiTANs Linn. Horn fly. Bar Harbor; Salisbury Cove, 

 July 25-30. 



Tetramerikx Berg 



T. UNICA Stein. Narrows, Aug. 13. 



Metopudae. The Flesh Flies 

 Metopia Meigen 



M. LEUcocEPHALA Eossi. Loug Poud ; S. W. Harbor, July 16- 



Aug. 22. 

 M. CAMPESTRis Fall. N. E. Harbor; Long Pond, July 17- 



Aug. 21. 



Brachycoma Eondani 



B. SARCOPHAGINA Towu. S. W. Harbor ; Eagle Lake, June 21- 

 July 18. Parasitic on the larvae in the nests of bumble bees. 



Pachyophthalmus Brauer and Bergeiistamm 



P. siGNATUs Meig. Common, July 11-Aug. 13. 



WoHLFAHRTiA Braucr and Bergenstamm 



W. VIGIL Walk. Salisbury Cove, July 24. 



Senotainia Macquart 



S. TRiLiNEATA V.d.Wulp. Salisbury Cove ; Sargent Mt., July 

 24-Aug. 8. 



