DIPTERA. 53 



T. flavellus (Zetterstedt). 

 Me. — Orono (Johannsen). 



T. obediens Johannsen, 05-286. 

 Me. — Orono, June (Johannsen). 



T. tenuis Meigen. 



Me. — Orono, June {Johannsen). 



Eurycnemus Van der Wulp. 



E. scitulus Coquillett. 



Me.— 4, 5, 8, 9. N. H.— 11, 15. June 7-July 16. 



Mass.— 23, 26, 27. Conn.— 35. May 26-June 16. 



Metriocnemus Van der Wulp. 



M. atratulus Zetterstedt. 

 Me. — Orono {Johannsen). 



M. flavifrons Johannsen, 05-301. 

 Me.- — -Orono {Johannsen). 



M. knabi Coquillett, 04-11. 



Mass. — Westfield; Springfield; Wilbraham. The larva lives in 

 pitcher-plant {Sarracenia purpurea), Knab, 05-69. 



M. lundbecki Johannsen, 05-302. 

 Me. — -Orono {Johannsen). 



M. aterrimus Meigen? 



N. H. — Mt. Washington {Mrs. Slosson), det. by Coquillett. 



Brillia Kieffer. 



B. par (Johannsen) {Metriocnemus par Johannsen, 05-301). 

 Me. — Orono {Johannsen). 



Chasmatonotus Loew. 



C. bimaculatus Osten Sacken. 



Me.— 8. N. H.— 11, 14. Vt.— 20. June 4-July 12. 

 Mass.— 26, 27, 29, 31, 32. Conn.— 35. May 19-June 28. 



C. unimaculatus Loew. 



Me.— 7, 8. N. H.— 11, 13, 14. Vt.— 17. June 15-July 13. 



Mass.— 27. Conn.— 35. May 31-June 17. 



Eutanypus Coquillett. 



E. borealis Coquillett. 



N. H. — Mt. Washington {Mrs. Slosson). 



Cricotopus Van der Wulp. 



C. bicinctus (Meigen). 



Mass. — Cohasset, June 20 {Bryant); Sherborn, Sept. 5; Ellis, 

 May 3. 



