176 FAUNA OF NEW ENGLAND. 



Pterallastes Loew. 

 P. thoracicus Loew. 

 Conn. — New Haven, June 8, 1911. 



Syritta St. Fargeau et Servilie. 

 S. pipiens (Linne). 

 Me.— 1, 4, 6, 8, 9. N. H.— 11, 12, 13, 14, 15. Vt.— 16, 18, 19, 



21. June 2-July 30. 

 Mass.— 25, 26, 27, 28, 29, 30. R. I.— 33. Conn.— 35. June 



8-Aug. 28. 



Emnerus Meigen. 



E. strigatus Fallen. The Lunate Onion-fly. 



Me.— Bar Harbor, July 25, 1916 (Metcalf). 



Mass. — Brookline, June, 1909; Melrose Highlands, 1914 (Web- 

 ber); Cambridge, Aug. 6, 1908. Conn.— From bulbs, 1906 

 {Chittenden); Colebrook, Aug. 18, 1922 (W. M. Wheeler). 



The larva lives in onions, narcissus and other bulbs. For its 

 appearance in America, see Metcalf, 19-170. 



Xylota Meigen. 

 X. angustiventris Loew. 

 N. H.— White Mts., Aug. 

 Conn. — Darien, June 10. 



X. anthreas Walker. 

 N. H.— . 

 Conn. — . 



X. hesperia atlantica Shannon {X. ohscura of authors). 

 Me.— Capens, July 16; Mt. Desert, July 14-29. N. H.— Fran- 

 conia. 



X. ejuncida Say. 



Me.— 4, 5, 6, 8, 9, 10. N. H.— 11, 13, 14, 15. Vt.— 21. June 



21-July 20. 

 Mass.— 23, 24, 25, 26, 27, 28, 32. R. I.— 33. Conn.— 34, 35. 



May 10-Sept. 1. 



X. ejuncida elongata Williston. 



Me. — Capens, July 16; Bar Harbor, June 7-July 24. 



Conn. — Stafford, Aug. 24 {Britton). 



X. fraudulosa Loew. 



N. H.— White Mts. 



Mass. — Chester, Aug. 4. Conn. — . 



X. confusa Shannon. 



Ue— Princeton, July 12, 1909. 



X. fascialis Coquillett, 10-126 {X. nemorum of authors). 

 N. H. — Mt. Washington, Glen House, June 13; Halfway House, 

 July 6. 



