DIPTERA. 21 



L. hudsonica (Osten Sacken). 



Me.— 7, 8, 9, 10. Vt.— 16, 20. June 20-Aug. 13. 



Mass.— 27. Aug. 8-16. 



L. parietina (Osten Sacken). 



Me.— 10. N. H.— 11, 14, 15. Vt.— 17. Aug. 26-Sept. 15. 



Mass.— 24. Sept. 16. 



L. solitaria (Osten Sacken). 



Me.— 1, 2, 4, 6, 7, 8, 9. N. H.— 11, 12, 14. Vt.— 16, 17, 18, 21. 



June8-Aug. 25. 

 Mass.— 23, 24, 27. May 29-Sept. 11. 



L. triocellata (Osten Sacken). 



Me.— 1, 2, 5, 6, 7, 8, 9. N. H.— 11. Vt.— 17, 19. July 12- 



Aug. 27. 

 Mass.— 23, 24, 26, 27, 28, 32. Conn.— 35. July 15-Sept. 16. 



The larva lives in fungus, see Psyche, vol. 13, p. 2, 1906. 



L. tristigma (Osten Sacken). 



Me.— 1, 6, 8. N. H.— 11. Vt.— 22. July 14-Aug. 19. 



Mass.— 23, 28. July 27-Aug. 8. 



. Rhamphidia Meigen. 



R. flavipes Macquart. 



N. H.— 11. Vt.— 16. June 23-July 14. 



Mass.— 23, 24, 27. R. I.— 33. Conn.— 35. May 23-Aug. 23. 



R. mainensis Alexander, 16-498. 

 Me, — Orono, June 12 (Alexander). 



Elephantomyia Osten Sacken. 



E. westwoodi Osten Sacken. 



Me.— 1, 4, 7, 8. N. H.— 11, 12. Vt.— 16, 21. June 5-July 17. 



Mass.— 23, 24, 27. Conn.— 35. June 16-Aug. 16. 



Toxorhina Loew. 



T. muliebris (Osten Sacken). 

 Me.— 6, 8, 9. Vt.— 20, 22. July 9-Aug. 5. 

 Mass.— 23, 24, 26, 27, 28. R. I.— 33. Conn.— 35. July 9- 

 July 14. 



Atarba Osten Sacken. 



A. picticomis (Osten Sacken). 

 N. H. — Hampton {Shaw). 



Mass. — Sandwich, June 19 {H itching s) ; Mt. Toby, July 10 

 {Alexander). Conn. — East River, July 13 {Ely). 



