THE MOUNT DESERT REGION 331 



CiTiBAENA Walker 



C. STRiGATUS Fall. Lunate Onion-fly. Bar Harbor, July 25, 

 1916 (Metcalf ) ; July 19, 1919. 



Chrysotoxum Meigen 



C. DERivATUM Walk. Salisbury Cove, Aug. 7, 1926. 

 C. FASCioLATUM DeG. Long Pond; S. W. Harbor ; Bar Harbor, 

 June 17-July 24. 



C. PERPLEXUM Johns. Witch Hole Pond ; S. W. Harbor, Aug. 

 18-Sept. 6. Green Mt. 1300 ft. level, July 20. 



Paragus Latreille 



P. ANGUSTiFRONs Loew. Salisbury Cove ; Bar Harbor, July 17- 



Aug. 10. 

 P. BicoLOR Fab. Salisbury Cove, July 14. 

 P. TIBIALIS Fall. Bar Harbor; Salisbury Cove, July 22-24. 



Leucozona Sc'hiner 



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. americanus. Larvae feeding on apliids on Spirea. Bred 



July 22 (Br.). 

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

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



Aug. 20. 

 S. amalopis 0. S. Bar Harbor ; Echo Lake, June 9-July 12. 

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



July 22-Aug. 13. 

 S. wiEDEMANNi Johus. Bar Harbor; 'Narrows,' June 9-Aug. 



13. 



