DIPTERA. 159 



P. pallipes Johnson (P. houghi Cresson, not Kertesz, see Cresson, 



12^55). 

 Me.— 8. *N. H.— 11, 14. Vt.— 16. June 20-Sept. 11. 

 Mass.— 23, 27. Conn.— 35. June 11-28. 



P. albofasciatus Hough. 



Me.— 6. N. H.— 11. Vt.— 16. June 22-July 24. 



Mass.— 27. July 11. 



P. flavomaculatus Hough. 



N. H.— Hampton, May 30 (Shaw). 



Mass. — Horse Neck Beach, Aug. 6 (Hough); Brookline, May 23; 

 Berlin, Aug. 8 (Frost) ; Gloucester, June 17. 



P. subvirescens Loew. 



Mass. — New Bedford (Hough) . 



P. scoparius Cresson, 11-317. 



ME.—Eastport, July 15, 1909; Mt. Desert, July 17. N. H.— 



Hampton, Aug. 4 (Shaw). 

 Mass. — Edgartown, June 29; Boston, Aug. 18. R. I. — Tiverton, 



July 31. 



P. appendipes Cresson, 11-319. 

 Vt. — Manchester, June 8. 



P. globosus Cresson, 12^53. 



R,. I. — Buttonwoods, July 25, 1911. 



P. trichaetus Malloch, 12-296. 



N. H.— Mt. Washington (Mrs. Slosson). 



P. caudatus Cresson, 12-289. 

 Me.— Mt. Desert, June 9-15. 

 Mass. — Chester, Aug. 4; Brookline, June 17. 



P. confraternus Banks, 12-285. 

 Mass. — Auburndale, July 16. 



P. similis Hough. 



N. H.— Hampton, May 16 (Shaw). 



R. I. — Buttonwoods, July 25. Conn. — Cheshire, July 8 (Vie- 



reck) . 



Syrphidae. 



Microdon Meigen. 



M. conflictus Curran, 24-226. 

 Me.— .Bar Harbor, July 30, 1919. 



Mass. — Washington, Aug. 8, 1912. Conn. — Scotland, July 25 

 (Walden). 



M. globosus Fabricius (M. fuscipennis of authors, not Mac- 

 quart) . 

 Me.— 9. N. H.— 11, 15. June 7-Julv 3. 

 Mass.— 23, 24, 26, 27, 28. Conn.— 35. June S-June 14. 



