DIPTERA. 199 



P. tortricis Coquillett {Tortriciophaga tortricis Townsend). 

 Vt. — Bennington, July 6, 1915, reared from Cacoecia cerasivorana. 

 Mass. — Melrose Highlands (W^ebber); Agawam, July 27; Am- 

 herst. CONxNT. — . 



Pseudotachinomyia H. E. Smith, 17-.54. 



P. webberi H. E. Smith, 17-54. 



Mass. — Melrose Highlands, May 16; Maiden, May 15; Cohasset, 

 May 29 (Bryant); Amherst. 



Madremyia Townsend, 16-622. 



M. saundersii (Williston) (Phorocera saundersii Williston). 

 Mass. — East Wareham, July 13-Aug. 18, reared from Cacoecia 

 parallela (Franklin); Forest Hills, Boston. 



Eupelecotheca Townsend, 18-169. 



E. celer Townsend, 18-169 (Phorocera rufilabris Coquillett, not 



Van der Wulp). 

 Vt. — Mt. Ascutney, July 11. 

 Mass. — Springfield, July 13; Auburndale, June 11; Woods Hole, 



July 1; Medford, June 23 (Barber). 



Exoristoides Coquillett. 



E. slossonae Coquillett (Exorisia spinipennis Coquillett). 

 Me.— 3, 7. N. H.— 11, 14. Vt.— 21. June 4-Aug. 1. 

 Mass.— 24, 26, 27. May 31-Aug. 15. 



Homalactia Townsend, 15-21. 



H. harringtoni (Coquillett) (Exoristoides harringtoni Coquillett). 

 N. H.— Summit of Mt. Monadnock, June 10, 1920. 



Doryphorophaga Townsend, 12-164. 



D. aberrans Townsend, 16-217 (Smith, 17-124); (Frontina aber- 



rajis Britton, 20-193). 

 Me.— 8. Vt.— 19, 20. July 11-Sept. 13. 

 Mass.— 24, 26, 27. Conn.— 35. June 8-Sept. 3. 



Reared from the Potato Beetle. 



D. dorsalis (Coquillett) (Exorista dorsalis Coquillett). 

 N. H.— Peterboro, July 20 (C. F. Batchelder). 

 Mass. — Boston, July 2; Melrose Highlands, June 24. 



D. doryphorae (Riley). 

 Me.— 8. N. H.— 13, 15. Sept. 6-30. 

 Mass.— 24, 27, 29. Conn.— 35. Aug. 17-Oct. 14. 

 Parasitic on the Potato Beetle. 



Frontina Meigen. 



F. aletiae (Riley). 



Me.— 8. Vt.— 20. July 11-25. 



Mass.— 26, 27, 29. R. I.— 33. Conn.—. June 6-Sept. 16. 

 Parasitic on the Tussock Moth, etc. 



