DIPTERA. 169 



E. xylotoides Johnson, 16-80. 



N. H.— Jaffrey, June 18. 



Mass. — Great Barrington, June 16; Amherst; Dighton, June 28 



{Easton); Tyngsboro, June 6 {Fall). Conx. — Washington, 



June 14 (Chamberlain) . 



Xanthogramma Schiner. 

 X. flavipes Loew. 

 N. H.— 15. Aug. 23. 

 Mass.— 24, 27, 28, 29. Conn.— 35. June 12-Aug. 10. 



Doros Meigen. 

 D. aequalis Loew. 

 N. H. — Franconia (Mrs. Slosson); Glen House, June 18; Jaffrey, 



June 14. 

 Mass. — Prmceton, July (L. W. Swett). Conn. — Short Beach, 



May 30, 1896. 



Allograpta Osten Sacken. 

 A. obliqua (Say). 



Me.— 8. N. H.— 15. July 29-Aug. 8. 

 Mass.— 24, 25, 27, 29, 31. R. I.— 33. Conn.— 35. June 20- 



Oct. 18. 



Toxomenis Macquart {Mesogramtna Loew). 



T. geminatus (Say). 



Me.— 8, 10. N. H.— 11, 12, 14, 15. Vt.— 16, 19. June 11- 



Oct. 3. 

 Mass.— 23, 27, 31. R. I.— 33. Conn.— 35. May 30-Oct. 16. 



T. marginatus (Say). 



Me.— 8, 9. N. H.— 11, 14. Vt.— 19, 20. July 18-Oct. 15. 



Mass.— 23, 24, 25, 26, 27, 28, 29, 30, 31, 32. R. I.— 33. Conn.— 

 35. May 16-Oct. 19. 



T. politus (Sav). 



N. H.— 11. Vt.— 20. Aug. 18. 



Mass.— 24, 27, 28, 31. R. I.— 33. Conn.— 35. Aug. 28- 

 Oct. 16. 



T. boscii Macquart. 



Mass. — . 



Sphaerophoria St. Fargeau et Serville. 



S. cylindrica (Say). 



Mass.— 23, 26, 27, 29, 30, 31, 32. R. I.— 33. Conn.— 35. 

 May 9-Oct. 1. 



S. menthastri (Linne). 



Me.— 1, 2, 3, 4, 6, 7, 8, 10. N. H.— 11, 14. Vt.— 16, 19, 20, 21. 



June 4- Aug. 16. 

 Mass.— 23, 24, 25, 26, 27, 28, 30, 31. R. I.— 33. May 14- 



Aug. 25. 



