DIPTERA. 203 



B. leucophrys Wiedemann. 



Me.— 6, 9. N. H.— 15. May 12-Sept. 6. 



Mass.— 24, 25, 26, 27, 28. Conn.— 34. May 4-Sept. 4. 



Winthemia R.-Desvoidy. 



W. fumiferanae Tothill, 12-3. 

 N. H.— Glen House, June 18, 1916. 

 A parasite of the Spruce Bud worm. 



W. quadripustulata (Fabricius). 



Me.— 3, 4, 6, 7, 8, 10. N. H.— 11, 14, 15. Vt.— 19. June 6- 



Aug. 28. 

 Mass.— 23, 24, 26, 27, 28, 29, 32. R. I.— 33. Conn.— 35. 



June 3-Sept. 20. 



Parasitic on the Army Worm, Tussock Moth, etc. 



W. vesiculata (Townsend), 16-28 {Trisisyropa vesiculata Town- 

 send, 16-28). 

 Me. — Lakehurst, Sebago Lake, Sept. 6, 1914. 



Muscopteryx Townsend. 



M. obscura Coquillett. 



N. H.— Mt. Washington, 2500 ft., July 8. 



Paradidyma Brauer and Bergenstamm. 



P. singularis Townsend. 



Mass.— 24, 26, 27, 29, 31, 32. Conn.— 35. May 21-Aug. 13. 



Metachaeta Coquillett. 

 M. helymus (Walker). 

 "Maine" (Walker). 



M. atra Coquillett. 



Me.— 4. N. H.— 11, 15. Apr. 14-Sept. 7. 



Mass.— 27, 29. Conn.— 35. May 22-June 27. 



Blepharipa Rondani. 



B. scutellata R.-Desvoidy. 



Me.— 9, 10. N. H.— 11, 12, 13, 14, 15. Vt.— 16, 19, 20, 21, 22. 



June 14-July 4. 

 Mass.— 23, 24, 25, 26, 27, 28, 29, 31, 32. R. I.— 33. Conn.— 



35. June 3-Aug. 4. 



Introduced from Europe and first colonized in 1907 (Howard 



and Fiske, 11-213 and 308). An important parasite of the Gipsy 



Moth. 



Acemyia R.-Desvoidy. 



A. dentata Coquillett. 



N. H.— Hampton, Aug. 18, 1904 (Shaw). 



Mass. — Woburn, June 11 (Barlow); Barnstable, July 5; Beverly. 



A. tibialis Coquillett. 



Mass. — Dedham, Sept. 14 (Aldrich det.) 



