192 BIOLOGICAL SURVEY OF 



Baccha Fabricius 



B. coGNATA Loew. Bar Harbor; Echo Lake; N. E. Harbor 

 (Minot), June 11-Aug. 25. 



Pyrophaena Schiner 



P. GRANDiTARSus Foerstcr. S. W. Harbor, July 15. 

 P. ROSAEUM Fab. Bar Harbor; S. W. Harbor; Salisbury 

 Cove, June 13-Aug. 9. 



Platychirus St. Fargeau and Serville 



P. cHAETOPODus Will. Bar Harbor, June 8. 



P. HYPERBOREus Stacg. Salisbury Cove, July 25. 



P. iMMARGiNATUs Zctt. S. W. Hai'bor ; Bar Harbor (Metcalf), 



June 15-July 25. 

 P. PELTATus Meig. Bar Harbor, June 16-July 17. 

 P. QUADRATus Say. 'Narrows'; Salisbury Cove, June 9- 



July 27. 



Melanostoma Schiner 



M. ANGusTATUM Will. Bar Harbor, June 14. 

 M. coNFUSUM Curr. S. W. Harbor, June 16. 

 M. MELLiNUM Linn. Common, June 22-July 27. 

 M. OBSCURUM Say. Bar Harbor; 'Narrows'; Long Pond, 

 June 21-Sept. 7. 



Leucozona Schiner 



L. LEucoRUM var. americana Curr. Bar Harbor; Echo Lake; 

 S. W. Harbor, June 9-23. 



DiDEA Macquart 



D. FASciATA var. FusciPEs Loew. Bar Harbor; Echo Lake, 

 June 15-17. 



Syrphus Fabricius 



S. ARCUATus Fall. S. W. Harbor, June 21. 



S. PERPLEXus Osburn. Echo Lake; S. W. Harbor, July 12- 



Aug. 20. 

 S. AMALOPis O. S. Bar Harbor; Echo Lake, June 9-July 12. 

 S. DisjECTUs Will. Bar Harbor; Salisbury Cove; 'Narrows,' 



July 22-Aug. 13. 



