DIPTERA. 51 



C. dispar Meigen? 



Me.— 5, 7, 8. N. H.— 14. Vt.— 22. June 13-July 19. 



Mass.— 27. Conn.— 35. May 28-Aug. 9. 



C. dux Johannsen, 05-231. 



Me.— Machias, July 22. N. H.— Bretton Woods, June 28. 



Vt. — Manchester, June 8. 

 Mass. — Brookline, Aug. 23; Auburndale, May 28-June 24; 



Wellesley, Oct. 4 {Morse). 



C. fallax Johannsen, 05-210. 



Me. — Machias, July 21; Mt. Desert, June 13; Oquossoc, July 1. 



C. fascipennis Zetterstedt. 



Me.— Machias, July 19; Mt. Desert, July 17. N. H.— Jaffrey, 



June 15. 

 Mass. — Sharon, Aug. 22. 



C. ferrugineovittatus Zetterstedt. 



Mass. — Boston and Brookline, Aug. 23-Sept. 13, 1911; Wellesley, 

 Oct. 10 (Morse). R. I. — Providence, Aug. 23. 



C. festivus Say. 



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



R. I. — Newport, June 5. Conn. — Hartford, Aug. 2 (Walden). 



C. flavicingulus Walker. 



N. H. — Franconia {Mrs. Slosson); Bretton Woods, June 26. 

 Mass. — Auburndale, May 26; Chicopee, Apr. 15; Amherst, 

 May 30. 



C. lineatus Say. 



Me. — Orono {Johannsen). 



C. lobiferus Say. 



Me.— Capens, July 21. Vt.— St. Albans, June 19. 



Mass. — Arlington, Sept. 17 {Barher). R. I. — Newport, June 5. 



C. maturus Johannsen, 08-279. 

 Me. — Orono {Johannsen). 



C. modestus Say. 



Me.— 1, 8. N. H.— 11. Vt.— 16, 17, 21. June 5-Sept. 11. 

 Mass.— 27, 29, 30. R. I.— 33. Conn.— 35. June 17-Sept. 24. 



C. needhami Johannsen, 07-278 (C. scalaenus of authors, not 



Schrank). 

 N. H. — Mt. Washington {Mrs. Slosson). Vt. — Montpelier, 



June 25, 1906. 



C. nigricans Johannsen, 05-219. 



Mej— 6, 7, 8, 9. N. H.— 12. July 12-Sept. 11. 



Mass.— 26, 27. June 10-Sept. 6. 



C. perpulcher Mitchell, 08-13. 

 Me. — Orono, June {Johannsen). 



