162 FAUNA OF NEW ENGLAND. 



P. pubescens (Loew). 



Me.— 4, 6, 7, 8. N. H.— . Vt.— 18, 21. June 5-Julv 19. 



Mass.— 23, 25, 26, 27, 28, 29. June 1-Sept. 1. 



P. recedens (Walker) (Pipiza fraudulenta Loew). 



I\Ie.— Mt. Desert, June 15-July 15. N. H.— Glen House, June 



14. Vt. — Mt. Equinox, June 5. 

 Mass. — Waltham. 



Heringia Rondani. 



H. salax Loew (P. radicum Walsh and Rilev; P. pistica Wllliston). 

 Me.— 6, 8, 10. N. H.— 11, 13, 14, 15. June 9-Sept. 10. 

 Mass.— 23, 27, 28, 29, 31. R. I.— 33. Coxx.— 35. Mav 23- 

 Aug. 24. 



Cnemodon Egger. 

 C. calcarata Loew. 



Me.— 9, 10. N. H.— 15. June 25-July 27. 

 Mass.— 23, 27, 28. Coxx.— 35. May 29-July 28. 



C. elongata Curran, 21-362. 



Me. — Bar Harbor, June 9, 17, 1921-22. 



C. pisticoides Williston. 



Me.— 4, 8, 10. N. H.— 11, 15. June 7-Aug. 1. 



Mass.— 27. July 4. 



C. squamulae Curran, 21-361. 

 Mass.— Weston, July 23, 1911. 



C. trochanterata IMalloeh, 18-127. 

 Mass.— Cohasset, May 29, 1904 (Bryant). 



Psilota Meigen. 

 ?P. buccata Macquart. 

 Mass. — Woods Hole. 



Paragus Latreille. 

 P. angustifrons Loew. 



Me.— 7, 8, 9. N. H.— 14, 15. June-Aug. 18. 

 Mass.— 27, 29, 30, 31, 32. R. I.— 33. Coxx.— 34, 35. June 

 27-Sept. 9. 



P. bicolor Fabricius. 



Me.— 7. N. H.— 11, 14, 15. Vt.— 21. Mav 11. 

 Mass.— 23, 25, 26, 27, 28, 29, 30, 32. R. I.— 33. Coxx.— 34, 35. 

 May 25-Sept. 21. 



P. tibialis Fallen. 



Me.— 7, 8. N. H.— 11, 15. June 6- July 22. 

 Mass.— 23, 27, 28, 29, 30, 31, 32. R. L— 33. Coxx.— 35. 

 June 2-Aug. 9. 



