DIPTERA. 109 



Villa Lioy {Ayithrax of authors, not Scopoli; Coquillett, 10-619). 



V. alternata (Say) . 



Me.— 2, 8, 9. N. H.— 11, 15. Vt.— 19, 20. July 20-23. 



Mass.— 23, 25, 27, 28, 29, 30, 31, 32. Conn.— 35. June 25- 

 Aug. 25. 



V. hypomelas Macquart. 



Me.— 1, 2, 8, 9. N. H.— 11, 15. July 30-Aug. 23. 

 Mass.— 23, 27, 29. Conn.— 34, 35. June 27-Sept. 4. 

 Bred from one of the cut-worms. 



V. lateralis (Say). 



Me.— 1, 2, 3, 6, 8, 9. N. H.— 11, 13, 15. Vt.— 17. July 14- 



Aug. 30. 

 Mass.— 23, 25, 26, 27, 28, 29, 30, 31. Conn.— 34, 35. June 26- 



Sept. 6. 



V. lateralis var. arenicola (Johnson), 08-15. 

 Mass. — Provincetown, June 25; Nantucket, Aug. 12. A sand- 

 dune form. 



V. lateralis var. gracilis (Macquart). 



Me.— 2, 6, 8, 9. N. H.— 11, 13, 14. Vt.— 19. July 13-Aug. 25. 



Mass.— 23, 29. Conn.— 34. July 11-Aug. 9. 



V. shawii Johnson, 08-14. 



N. H. — Hampton Beach, Aug. 27 (Shaw). 



Mass. — Westport, Sept. (Kirkland) ; Provincetown, Sept. 8, and 



Nantucket, Sept. 10 (Morse). 



V. fulviana var. nigricauda (Loew). 



Me.— 1, 2, 6, 7, 8, 9. N. H.— 11, 13, 15. Vt.— 19. July 12- 



Sept. 16. 

 Mass.— 23, 25, 26. Conn.— 34. July 11-Aug. 30. 



V. tegminipennis (Say). 



Me.— i, 6, 8, 9. N. H.— 11, 13, 15. Vt.— 19, 20. July 30- 



Aus. 25. 

 Mass.— 25, 26, 30, 32. R. I.— 33. Aug. 10-30. 



V. f ulvohirta (Wiedemann) . 



Mass. — Springfield, Aug. 6. Conn. — New Haven, Aug. 16. 



V. bigradata Loew. 



Mass. — Provincetown, June 15 (Wehher) ; Muskeget Isl., June 18; 

 Nantucket, June 11 (Fall). 



V. webberi Johnson, 19-11 {V. lepidota of authors, in part). 



Vt.— 20, 21. June 21-July 11. 



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



V. morio (Linne). 



Me.— 8, 9. N. H.— 11, 14. Vt.— 16, 20, 21. June 11-July 13. 



Mass.— 23, 25, 27. Coxx.— 35. May 22-July 1. 



