DIPTERA. 23 



G. mainensis Alexander, 19-163. 



Me.— Ft. Kent, Aug. 29, 1913 (Alexander). 



G. manca Osten Sacken. 



Mass. — Conway, Sept. 16, 1922 (Alexander). 



G. subcinerea Osten Sacken. 



Me.— 1, 3, 6, 8. N. H.— 11. Vt.— 22. June 8-Sept. 7. 



Mass.— 23, 24, 27. Conn.— 35. June 17-Aug. 13. 



G. sulphurella Osten Sacken. 



Me.— 9. N. H.— 11, 12. Vt.— 20. July 8-Sept. 5. 



Mass.— 24. R. I.— 33. Conn.— 35. May 29-Sept. 23. 



Cryptolabris Osten Sacken. 



C. paradoxa Osten Sacken. 



Me.— 3, 4. N. H.— 11, 12. Vt.— 20. July 6-Aug. 22. 



Mass.— 27. July 7. 



Helobia St. Fargeau et Serville. 



H. hybrida (Meigen). 



Me.— 1, 6, 8. N. H.— 11, 15. Vt.— 16, 17, 18. May 11- 



Aug. 17. 

 Mass.— 24, 26, 27, 28. R. I.— 33. Conn.— 35. May 3-Aug. 30. 



Molophilus Curtis. 

 M. comatus Doane. 

 Me.—. 



M. cramptoni Alexander, 24-61. 



Mass. — Amherst, June 5, 1924 (Alexander). 



M. forcipula Osten Sacken. 



Me.— 4, 7, 8, 10. N. H.— 11. July 12-26. 



Mass.— 27. 



M. hirtipennis Osten Sacken. 



Me.— 1, 6, 8. N. H.— 11, 15. Apr. 29-Aug. 19. 



Mass.— 24, 27, 28. Conn.— 35. May 26-July 20. 



M. pubipennis Osten Sacken. 



Me.— 4, 8. N. H.— 11. Vt.— 17, 22. July 14-Aug. 31. 



Mass.— 23, 24, 27, 29. R. I.— 33. June 5-Aug. 9. 



M. ursinus Osten Sacken. 



Me.— Mt. Desert, July 22. N. H.— Hampton, April 27 (Shaw). 



Erioptera Meigen. 



Subgenus Erioptera Meigen. 



E. chlorophylla Osten Sacken. 



Me.— 5, 6, 7, 8. N. H.— 11. June 26- Aug. 5. 



Mass.— 23, 26, 27, 29. R. I.— 33. Conn.— 35. June 15-Aug. 10. 



