DIPTERA. 23 



G. mainensis Alexander, 19-163. 



Me.— 7^^. 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.^, 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. 



