DIPTERA. 133 



D. quadrilamellatus Loew. 



N. H. — Franconia (Mrs. Slosson). 



Mass. — Forest Hills, Boston. Conn. — Winnipauk, June 16. 



D. ramifer Loew. 



Me.— 8. July 13. 



Mass.— 27, 28. R. I.— 33. Conn.— 35. June 10-Aug. 17. 



D. remipes Wahlberg. 



Me.— Bar Harbor, July, 1919, "Witchhole" and "Beaver Dam" 

 Ponds, on water-lily pads. 



D. remus Van Duzee, Cole and Aldrieh, 21-96. 

 Vt. — Mt. Equinox, June 5. 



D. renidescens Melander and Brues. 

 Me.— Eastport, July 17, 1909. 



D. scapularis Loew. 



N. H. — Franconia (Mrs. Slosson). 



D. scoparius Loew. 



Me.— 4, 7, 8. N. H.— 11, 14. Vt.— 19, 21. June 14- Aug. 1. 



Mass.— 23, 25, 26, 27, 28, 29, 31. R. I.— 33. May 30-July 27. 



D. serratus Van Duzee, Cole and Aldrieh, 21-155. 

 Me.— ML Katahdin, 5215 ft., Aug. 19, 1902. 



D. setifer Loew. 



Me.— 4, 8. N. H.— 11, 14. June 18-Aug. 21. 



Mass.— 26, 27, 29, 31. R. I.— 33. Conn.— 35. May 19-July 27. 



D. setosus Loew. 



Me.— 8. N. H.— 15. Vt.— 21. June 7-July 13. 



Mass.— 26, 28, 29. May 29-July 27. 



D. sincerus Melander. 



Me.— 4, 7, 8. N. H.— 11. July 16-26. 



Mass.— 26, 27, 28. Conn.— 35. July 8-Aug. 2. 



D. sincerus var. subdirectus Van Duzee, Cole and Aldrieh, 21- 



118. 

 Me.— 6, 9. N. H.— 11. July 8. 

 Mass.— 27, 28, 29 (Woods Hole). July 27- Aug. 2. 



D. slossonae Van Duzee, Cole and Aldrieh, 21-235. 

 Me. — Eastport, July 15; Mt. Desert, June 17. N. H. — Franconia 

 (Mrs. Slosson). Vt. — Mt. Ascutney, July 11. 



D, socius Loew. 



Me.— 7, 8. N. H.— 15. Vt.— 20, 21. June 22-July 17. 



Mass. — 28. June 10. 



