374 BIOLOGICAL SUEVEY OF 



Z. (Phyryxe) vulgaeis Fall. Penikese; Witch Hole Pond, 



July 23-Sept. 11. 

 Z. helvina Coq. S. W. Harbor ; Penikese, Aug. 11-22. 

 Z. viRiLis. Green Mt., Aug. 17. 



GoNTA Meigen 



G. (Cnephlogonia) distincta Smith. Common, July 15- 



Aug. 22. 

 G. frontosa Say. Bar Harbor, June 11. 



Spaiaanzania Desvoidy 



S. HESPERiDARUM Will. Salisbury Cove, July 24. 



Peleteria Desvoidy 



P. ATAXIAS Walk. (P. rohusta of authors). N. E. Harbor; 



S. W. Harbor, Aug. 23-Sept. 6. 

 P. CONFUSA Curr. Echo Lake; S. W. Harbor; Bar Harbor, 



July 12-Sept. 11. 

 P. iTEEANs Walk. (P. tessellata of authors). S. W. Harbor, 



Sept. 6. 



MiCROPHTHALMA Macquart 



M. DisjuNCTA Wied. Witch Hole Pond, Sept. 11. 

 M. MicHiGANENSis Towu. Salisbury Cove, Aug. 9. 



Blepharigena Eondani 



B. spiNULosA Bigot. Salisbury Cove, July 23. 



Phyllomya Desvoidy 



P. POLiTA Coq. Long Pond, July 16. 



EuBRACHYTViKRA Townseiid 



E. DEBiLis Town. S. W. Harbor, July 15-20. 



