174 FAUNA OF NEW ENGLAND. 



Helophilus Meigen. 

 H. bilinearis Williston. 

 Me. — Orono, June 15 (Parshley). 

 Conn. — Branford, May 9, 1905 {Winkley). 



H. lunulatus Meigen. 



Me. — Mt. Desert, June 13. 



Mass. — Melrose, June 4; Lexington, July 12; Billerica, Aug. 27. 



H. hamatus Loew. 



Mass.— 25, 26, 27, 29, 31. Coxx.— 35. May 8- June 29. 



H. conostoma Williston. 

 Me.— 8. N. H.— 11, 15. May 26-Aug. 12. 

 Mass.— 27, 28, 29, 30, 31, 32. R. I.— 33. Coxx.— 35. Mav 

 15-Sept. 1. 



H. chrysostomus Wiedemann. 

 N. H.— 11. 



Mass.— 26, 27, 28, 29. R. I.— 33. Coxx.— 34, 35. IMav 14- 

 Aug. 18. 



H. distinctus Williston. 



Coxx. — Xew Haven (Williston). 



H, integer Loew. 

 Me.— 7. July 10. 



Mass.— 25, 26, 27, 29, 30, 31, 32. R. I.— 33. Coxx.— 35. 

 May 25-Aug. 19. 



H. laetus Loew. 



Me.— 6, 8, 9. X. H.— 11, 14. June 3-July 27. 

 Mass.— 25, 27, 29, 32. R. I.— 33. Conn.— 35. June 4- 

 Aug. 11. 



H. porcus Walker. 



Me. — Orono, June 22; Oquossoc, July 1; Saddleback Mt. {Met- 

 calf). 



H. flavifacies Bigot. 



Me.— Monmouth, June 21, 1909 (C. A. Frost). 



H. obscurus Loew. 



Me.— Saddleback Lake, 2500 ft., July 19, 1916 (Metcalf). 



H. obsoletus Loew. 



Me. — Bar Harbor, June 13. 



Mass. — Hopkinton, June 10 (C. A. Frost). 



H. latifrons Loew. 



Me.— 4, 6, 8. X. H.— 11, 14, 15. Vt.— 19. July 19-Sept. 8. 



Mass.— 27, 28, 29, 32. Coxx.— 34. June 25-Oct. 20. 



H. similis Macquart. 



Me.— 4, 6, 8, 9. X. H.— 11, 14, 15. Vt.— 16, 19. May 24- 



Sept. 30. 

 Mass.— 26, 27, 32. Coxx.— 34, 35. June 15-Oct. 4. 



