DIPTERA. 181 



T. baroni (Williston). 



N. H.— 11, 12. July 5. 



Mass.— 27. R. I.— 33. Conn.— 35. Aug. 1-27. 



T. modesta var. melanopoda (Williston). 



N. H.— 11, 12, 13, 14, 15. Vt.— 20. July 2-Aug. 18. 



Mass.— 23, 24, 26, 27. Conn.— 35. June 27-Aug. 22. 



T. loraria (Loew). • 



Me.— 8. N. H.— 11, 15. July 17-Sept. 5. 



Mass.— 23, 25, 27, 29. Conn.— 34, 35. May 26-Aug. 25. 



Myopa Fabricius. 



M. clausa Loew. 



Me.— 4,5,7,9. N. H.— 11, 14, 15. Vt.— 20. May 31-July 15. 



Mass.— 23, 24, 25, 27. Conn.— 35. May 18-June 10. 



M. vesiculosa Say. 



Me.— 9. N. H.— 11, 14, 15. May 12- June 18. 



Mass.— 27, 32. R. I.— 33. Conn.— 35. May 3-29. 



M. vicaria Walker. 



Me.— 6, 9. N. H.— 15. Apr. 22-May 5. 



Mass.— 25, 27, 32. R. I.— 33. Conn.— 35. Apr. 18-June 1. 



M. virginica Banks, 16-198. 



Me.— 9. N. H.— 12. Vt.— 21. June 8- July 14. 



Mass.— 23. Conn.— 34. June 14-July 15. 



Pyrgotidae. 



Pyrgota Wiedemann. 



P. chagnoni Johnson. 



Mass.— West Pittsfield, July 1, 1924 {Carpenter). Conn.— 

 Lyme, May 27, 1918 {A. B. Champlain). 



P. undata Wiedemann. 



Me.— 6, 9. N. H.— 11, 14. Vt.— 16, 21. June 9-19. 



Mass.— 23, 24, 25, 27, 28. Conn.— 35. June 3-July 12. 



P. valida (Harris). 



N. H.— 11, 14, 15. May 27. 



Mass.— 24, 26, 27. R. L— 33. Conn.— 35. May 2-June 20. 



Oestridae. 

 Oestrus Linne. 



Oe. ovis Linne. The Sheep Bot-fly. 



Me.— Hallowell, July (Harris Coll.). N. H.— Dublin {Harris 



Coll.). 



Mass. — Cambridge, July 1, 1838 {Harris). Conn. — •. 



