190 BIOLOGICAL SURVEY OF 



Platypezoides Johnson 



P. DivERSA Johns. Bar Harbor, Sept. 11. Type locality. 



MiCROSANiA Zetterstedt 



M. sTiGMATicALis Zett. 'Mt. Desert,' July 31 (McAtee). 



PiPUNCULiDAE. 'Big-eyed flies' 



The larvae are parasitic in the bodies of bugs and leaf- 

 hoppers. 



Chalarus Walker 



C. spuRius Fall. Bar Harbor, Aug. 16. 



Verrallia Mik 



V. piLOSA Zett. Bar Harbor ; S. W. Harbor, June 7-16. 



PiPUNCULUS Latreille 



P. AEQuus Cress. Duck Brook, Sept. 11, 1922. 



P. ATLANTicus Hougli. Bar Harbor, June 7. 



P. CAUDATUS Cress. Bar Harbor ; Upper Hadlock Pond ; S. W. 

 Harbor, June 9-25. 



P. ciNGULATus Locw. Bar Harbor; Echo Lake, July 12. 



P. DUBius Cress. Salisbury Cove ; Green Mt., July 24-25. 



P. Fuscus Loew. S. W. Harbor ; Salisbury Cove, July 20-23. 



P. HORVATHi Kertz. Echo Lake, June 17. 



P. MINOR Cress. Salisbury Cove, July 15. 



P. PALLiPES Johns. Bar Harbor ; Long Pond, June 10-20. 



P. scoPARius Cress. Salisbury Cove ; Echo Lake ; S. W. Har- 

 bor, July 14— Sept. 5. 



P. viDuus Cress. Salisbury Cove, July 13-19. 



Syrphidae 



MiCRODON Meigen 



M. coNFLicTus Curr. Witch Hole Pond, July 20 ; S. W. Har- 

 bor, Aug. 26 (Alexander). 



M. coTHURNATus Bigot. ^ Great Clearing,' north of Sargent 

 Mt., June 10. 



M. MANiTOBENsis Curr. Bar Harbor; S. W. Harbor, June 

 9-22. 



M. ocELLARis Curr. Bar Harbor, June 9. 



M. TRisTis Loew. Bar Harbor, June 8-21. 



