DIPTERA. 163 



Chilosia Meigen. 



C. hiawatha Shannon, 22-138. 



Mass — Forest Hills, Boston (J. Bequaert). 



C. lasiophthalma Williston. 



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



C. orilliaensis Curran, 22-67 (C petulca of Mrs. Slosson's Mt. 



Washington Hst) . 

 Me.— Mt. Desert, June 21. N. H.— Mt. Washington, July 8- 



16; "Glen House," June 14- July 14; Jaffrey, June 18. 



C. pontiaca Shannon, 22-142. 



Me.— Machias, July 17, 1909. N. K.—Mt. Washington, Halfway 

 House, July 6, 1916. 



Cartos5rrphus Bigot. 

 Subgenus Hiatomyia Shannon. 



C. cyanescens Loew. 



Me. — Oquossoc, July 3. N. H. — White Mts.; Franconia. 



Mass. — Chester, July 25. Conn. — . 



Subgenus Cartosyrphus Bigot. 



C. pallipes Loew. 



Me.— 5, 7, 8, 9, 10. N. H.— 11, 13, 14. Vt.— 21. June 21- 



July 30. 

 Mass.— 23, 25, 27, 28, 29, 32. R. I.— 33. Conn.— 34. July 5- 



Sept. 21. 



C. tristis Loew. 



Me.— 2, 5, 6, 7, 8, 9, 10. N. H.— 11, 14, 15. June 13-Sept. 6. 



Mass.— 23, 27, 28, 29, 32. Conn.— 34, 35. June 11-Sept. 21. 



C. sialia Shannon, 22-132. 



N. H.— "Glen House," July 7, 1914. 



C, similis Shannon, 16-196. 



Mass. — Near Ellis Station, Norwood, Sept. 4, 1908. 



C. slossonae Shannon, 22-144. 



Me.— Mt. Desert, June 10, 1921. N. H.— Hampton, Apr. 18- 



May 9 (Shaw). 

 Mass.— Sherborn, May 2, 1919 {E. J. Smith); Essex Co. {F. H. 



Walker) . 



Cynorhinella Curran, 22-14. 



C. longinasus Shannon, 24-123. 

 N. B..— Jaffrey, June 6, 1920. 



Chalcomyia Williston. 

 C. aerea Loew. 



Mass. — Sherborn, May 18 (E. J. Smith) ; Auburndale, May 26, 

 1905. 



