DIPTERA. 175 



H. borealis Staeger {H. glacialis Loew; see Hine, 23-94). 



Me. — Roque Bluff, Aug. 11, 1907 (Cushman); Mt. Desert, Aug. 



13; Waterville (Hitchings); Isle of Springs, July 5, 1920 (C. E. 



White, Jr.). Vt. — {Harris Coll.). 

 Mass. — -Dorchester, June 1. 



H. borealis var. dychei Williston. 

 Me.— Capens, July 11-16, 1907. 



H. groenlandicus (0. Fabricius). 



N. H.— Kearsarge Mt., 3270 ft., July 2, 1891 (A. P. Morse). 



Mallota Meigen. 



M. cimbiciformis (Fallen). 



Me.— 4. N. H.— 11, 14. Vt.— 21. June 15- July 25. 



Mass.— 23, 27. Conn.— 35. June 20-July 13. 



M. cimbiciformis var. bautias Walker. 



Me.— 4. N. H.— 14. Vt.— 21. June 16-July 19. 



Mass.— 23, 27. Conn.— 34. June 18-July 24. 



M. posticata (Fabricius). 



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



Mass.— 25, 27, 31. Conn.— 34, 35. May 30- July 14. 



Merodon Meigen. 



M. equestris (Fabricius). The Narcissus Fly. 



Me.— Bar Harbor, July 25, 1916 {Metcalf), July 19, 1919 



(C. W. J.) 

 Mass. — Great Barrington, June 16, 1915. 



M. equestris var. narcissi (Fabricius). 



Mass.— Blue Hill, June 5, 1910; Brookline, May 30; Sherborn, 

 June 8. 



M. equestris var, transversalis Meigen. 

 Mass. — Melrose Highlands, June 18; Salem, May 25. 

 The larva lives in the bulbs of narcissus. 



Polydontomyia WiUiston (Triodonta Williston, 1885, not Bory, 1824). 



P. curvipes (Wiedemann). 



Me.— 7, 8, 10. N. H.— 15. June 3-Aug. 13. 



Mass.— 26, 27, 28, 29, 32. R. I.— 33. Conn.— 35. May 25- 



Aug. 5. 



In New England this species is confined to the immediate 



sea-coast. 



Teuchocnemis Osten Sacken. 



T. lituratus (Loew). 

 N. H.— Hampton, May 21 {Shaw). 



Mass. — Concord; Brookline; Tyngsboro, June 5 {Fall); Natick 

 and Sherborn; Woods Hole. May 17- June 15. 



