176 FAUNA OF NEW ENGLAND. 



Pterallastes Loew. 

 P. thoracicus Loew. 

 CoNX. — Xew Haven, June 8, 1911. 



Syritta St. Fargeau et Serville. 

 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. Coxx.— 35. June 



8-Aug. 28. 



Eiunerus ^Meigen. 



E. strigatus Fallen. The Lunate Onion-fly. 



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



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

 her); Cambridge, Aug. 6, 1908. Coxx.— 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. 

 CoxN. — Darien, June 10. 



X. anthreas Walker. 

 N. H.— . 

 Coxx. — . 



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

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

 conia. 



X. ejuncida Sav. 



Me.— 4, 0, 6, 8, 9, 10. X. H.— 11, 13, 14, 15. Vt.— 21. June 



21-Julv 20. 

 Mass.— 23, 24, 25, 26, 27, 28, 32. Pv. I.— 33. Coxx.— 34, 35. 



May 10-Sept. 1. 



X. ejuncida elongata Williston. 



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



CoxN.— Stafford, Aug. 24 {Britton). 



X. fraudulosa Loew.. 



N. H.— White Mts. 



Mass. — Chester, Aug. 4. Coxx. — . 



X. confusa Shannon. 



'My..— 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. 



