DIPTERA. 227 



M. discimana Malloch, 20-136. 



Me.— 5, 7, 8, 10. N. H.— 11, 14. Vt.— 21. June 8-Aug. 6. 

 Mass.— 23, 24, 25, 27, 32. R. I.— 33. Conn.— 35. May 28- 

 Aug. 14. 



M. neglecta Malloch, 20-136. 



Vt.— 20. July 11. 



Mass.— 23, 27, 32. R. I.— 33. Conn.— 35. June 15-Sept. 6. 



M. hirtiventris Malloch, 20-269. 

 Me.— Mt. Desert, June 17-Aug. 16. 

 Mass. — Chester, Aug. 5. 



M. pagana (Fabricius). 



Me. — Machias, July 19; Bar Harbor, June 7. N. H. — Jaffrey, 

 June 8. 



M. urbana (Meigen). 



Me.— 8. N. H.— 11, 14. June 8- July 18. 

 Mass.— 23, 26, 27, 28, 32. R. I.— 33. Conn.— 35. May 26- 

 Sept. 4. 



Helina R.-Desvoidy {Spilogasler Macquart). 



H. marmorata Zetterstedt. 



Me.— 7, 8. N. H.— 11, 14. Vt.— 20, 21. June 5- Aug. 17. 



Mass.— 23, 27, 28. R. I.— 33. June 14-July 27. 



H. lucorum Fallen. 



Me.— 3, 4, 7, 8, 10. N. H.— 11, 15. Vt.— 16, 18, 19, 21. June 



11-Aug. 27. 



Mass.— 23, 25, 27. Conn.— 35. May 30-July 7. 



H. multisetosa Schnabl. 



Me.— 6, 8. N. H.— 11, 14, 15. Vt.— 19. Aug. 15-Sept. 14. 



H. nigripennis (Walker) {Aricia nitida Stein). 



Mass. — Cohasset, June 1 {Bryant); Provincetown, June 25. 



H. nigricans Stein. 



Me.— 1, 8. N. H.— 15. Vt.— 16, 19, 22. June 22-Aug. 19. 



Mass.— 23, 27. Aug. 4-Sept. 1. 



H. duplicata Meigen. 



Me.— 3. N. H.— 11. July 12-31. 



Mass.— 23, 27, 28. June 10-July 12. 



H. rufitibia Stein. 



Vt.— Mt. Ascutney, July 11, 1908. 



H. pectinata Johannsen, 16-396. 

 Me.— Bar Harbor, July 22, 1919. 



H. brevis Stein. 



Me. — Eastport, July 14; Southwest Harbor, July 13. 



H. consimilata Malloch, 20-144. 

 Mass. — New Bedford (Hough). 



