DIPTERA. 125 



R. gracilis Curran, 24-228. 



Mass.— Beverly, May, June {U. S. Nat. Mus.). 



R. johnsoni (Van Diizee), 23-240. 



N. H. — Jaffrey, June 18. 



R. I. — Kingston, June 17 (Barlow). 



R. longipes (Loew). 



Me.— 8. N. H.— 11, 14. June 7-July 12. 



Mass.— 26, 27. Conn.— 35. May 24-July 8. 



R. lugubre (Loew). 



Conn. — Branford, Apr. 20 (Champlain). 



R. melampus (Loew). 



Me.— 7, 8. N. H.— 14. June 7- July 1. 



Mass.— 23, 27. Conn.— 35. May 26- June 30. 



R. nigricoxa Loew. 



Me.— 6, 8. N. H.— 12, 14. Vt.— 16, 20. June 22- July 13. 



Mass.— 23, 27. Conn.— 35. May 22- June 13. 



R. signifer (Osten Sacken). 



Mass. — Sharon, July 7 and Aug. 3. 



R. slossonae (Johnson) (Leucostola slossonae Johnson, 06-59; 



P. slossonae Van Duzee, 23-239). 

 Me. — Bar Harbor, July 26. N. H. — Mt. Washington (Mrs. 



Slosson) . 



R. subarmatum Curran, 24-228. 

 N. H. — Franconia. 



Nematoproctus Loew. 



N. venustus Melander. 



Me. — Machias, July 21. Vt. — Norwich, July 8. 



Syntormon Loew. 



S. cinereiventris Loew. 

 Conn. — . 



Sympycnus Loew. 

 S. lineatus Loew. 



Me.— 4, 8. N. H.— 11, 12. Vt.— 22. July 8-Sept. 7. 

 Mass.— 26, 27. R. I.— 33. Conn.— 35. June 17-Oct. 16. 



Nothosympycnus Wheeler. 



N. fortunatus Wheeler. 



Me.— Orono, July 29-Aug. 9. N. H.— Cornish, July 13. Vt.— 



Dummerston, July 14. 

 Mass. — Chester, Aug. 7; Sharon, Aug. 3. 



N. frontalis (Loew). 



Me. — Orono, Aug. 9. 



Mass. — Boston, Sept. 28; Chester, Aug. 9. 



