76 FAUNA OF NEW ENGLAND. 



C. viticola Osten Sacken. Grape Tube-gall. 

 Mass. — Worcester, Aug. (Thompson). 



Elongated conical reddish leaf-galls on grape (Felt, 18-168). 



Note: — The so-called "oak spangle" referred to in literature as 

 Cecidomyia poculum O. S., although Osten Sacken suspected 

 they were due to a cynipid, are really produced by a cynipid wasp, 

 described by Weld as Xystoteras poculum (Proc. U. S. Nat, Mus., 

 vol. 61, p. 7, 1922). 



Mycetophilidae. The Fungus Gnats. 

 Bolitophlla Meigen. 

 B. disjuncta Loew. 

 Me.— 4, 8. N. H.— 11. Vt.— 21. June 5-July 24. 



B. cinerea Meigen. 



Me.— 1, 4, 6, 7. N. H.— 11, 14, 15. June 10-Oct. 30. 



Mass.— 23. May 26. 



B. hybrida Meigen. 



Me.— 1, 4, 8. N. H.— 11, 13, 14. Vt.— 21. June 4-Sept. 10. 



Mass.— 23. June 13-Aug. 7. 



B. montana Coquillett. 



Me.— Mt. Desert, June 7. N. H.— Mt. Washington. 



Hesperinus Walker. 

 H. brevifrons Walker. 

 N. H.— Mt. Washington, 4000 ft., July 6. 

 Mass. — Mt. Greylock, June 15. 



Palaeoplatyura Meunier. 



P. johnsoni Johannsen, 09-226. 



Vt. — Burlington, June 24. 



Mass. — Great Barrington, June 15. 



Ditomyia Winnertz. 



D. euzona Loew. 

 N. H. — Franconia. 



Symmerus Walker. 

 S. tristis (Loew). 

 Me.— Mt. Desert, Aug. 10. 



Mass. — . 



S. annulatus (Meigen). 



Me.-^. N. H.— 11. Vt.— 18, 20, 22. June 26-July 26. 



Mass.— 23. July 24-Aug. 5. 



S. lauta (Loew). 



Me.— Capens, July 15; Eastport, July 16. N. H.— Mt. Wash- 

 ington, 2500 ft., July 24-28. 



