DIPTERA. 99 



B. tranquilla (Osten Sacken). 



Me.— 3, 8, 10. N. H.— 11, 14, 15. Vt.— 19. July 25-Aug. 22. 

 Mass.— 23, 25, 26, 27. Conn.— 34. July 26-Aug. 8. 



Chrysops Meigen. Deer or Moose Flies. 



C. celer Osten Sacken. 



Me.— 6, 7, 9. N. H.— 13, 15. Vt.— 17. June 22-July 14. 

 Mass.— 23, 25, 27, 28, 32. R. I.— 33. Conn.— 34, 35. June 

 11-July 4. 



C. carbonaria Walker (C.fugax Osten Sacken). 



Me.— 1, 3, 4, 5, 6, 7, 8, 9. N. H.— 11, 13, 14, 15. Vt.— 16, 17, 



21. June 10- July 15. 

 Mass.— 23, 24, 25, 27, 28, 29. R. I.— 33. Conn.— 35. May 



26- June 19. 



C. amazon Daecke, 07-250. 

 Mass.— North Saugus, July 17, 1906. 



C. mitis Osten Sacken. 



Me.— 5, 7, 8. N. H.— 11, 14. Vt.— 21. June 9-July 12. 



Mass.— 27. May 28. 



C. cuclux Whitney. 



Me.— 7, 9. N. H.— 14. Vt.— 16, 21. June 9-28. 



Mass.— 23, 26, 27. Conn.— 35. June 11-16. 



C. niger Macquart. 



Me.— 1, 3, 6, 8, 9, 10. N. H.— 11, 14, 15. Vt.— 16, 17, 18, 21. 



June 14-July 14. 

 Mass.— 23, 24, 27. R. I.— 33. Conn.— 35. May 30-Aug. 2. 



C. nigrobimbo Whitney. 

 N. B-.—Milford, July 10 (Whitney). 



Mass. — Springfield, July 13; Hyannisport, July 4; Fall River, 

 July 19; Wellesley, May 24 (Morse). 



C. sordida Osten Sacken. 



Me.— Mt. Katahdin, Basin Pond, 2400 ft., July 13, 1923 (Irving 

 H. Blake). N. R.—Mt. Washington, 2000 to 4000 ft., July 4- 

 16; Bretton Woods, June 28; Franconia (Mrs. Slosson). 



C. excitans Walker. 



Me.— 3, 4, 5, 6, 7, 8, 9, 10. N. H.— 11, 14, 15. June 22-Aug. 1. 



Mass.— 23, 25, 26, 27, 29. R. I.— 33. Conn.— 34. June3-July2. 



C. fuliginosa Wiedemann (C. plangens Wiedemann). 



Me.— 7, 8, 10. N. H.— 15. June 17- July 24. 



Mass.— 26, 27, 28, 29, 31, 32. R. I.— 33. Conn.— 35. May 



30- July 4. 



This species is confined to the immediate seacoast. 



