PROC. ENT. SOC. WASH., VOL. 22, NO. I, JAN., IQ2O 17 



Church, Va., June 2X to July 31, Banks; July 4, S and 13, 11)13 

 (latter feeding on a young locustid), F. Knab; Glencarlyn, Va., 

 June 24, Banks; Washington, D. C., August 19, 1S99; near 

 Chevy Chase Lake, Md., July (}, HM3, W. D. Appel; Linnieville, 

 Md., July S, 1912, R. C. Shannon. 



L. favillaceus Loew. Great Falls, Va., June 20, Banks; Plum- 

 mers Id., Md., June 20, 1912, H. S. Barber; June 21, 1914; Dead 

 Run, Va., June~22, 1915, R. C. Shannon; June 23; Chain Bridge, 

 Va., June 4; Falls Church, Va., September 1; Glencarlyn, Va., 

 June 23, Banks; June 17, 1917, McAtee. Perhaps not distinctly 

 separable from flai'ipes. 



L. flavipes Loew. Fairly common ; May 28 to September (i. P. I. 



L. incisuralis Loew. Falls Church, Va., August 10, Banks; 

 Dalecarlia Reservoir. D. C., August 22, 1915, McAtee; Washing- 

 ton, D. C., August 2, September 14, 1X99; Beltsville, Md., July 

 26, 1914, L. O. Jackson. 



L. loewii Banks. Maryland near Plummers Island, June 7, 

 1914, McAtee; Chain Bridge, Va., May 2S; Falls Church, Va., 

 June 1 1, July 4; Glencarlyn, Va., June 24, Banks. 



L. pictipes Loew. Probably next in abundance to L. anuu- 

 latus; June 4 to September 20; seen about flowers more than other 

 species, has been taken on those of Ceaiiotlnis aniericainis and 

 Tephrosia virgimca; in copula, July 9. L. raripes Loew, origin- 

 ally described from the District of Columbia is the female of this 

 species. P. I. 



L. tenuipes Loew. Originally described from District of Col- 

 umbia specimens. Great Falls, Va., June 29, July 17, September 

 24, Banks; August 23, Difficult Run, Va., September 3, 1911, 

 F. Knab; Virginia near Plummers Id., Oct. :>, 1913, R. C. Shan- 

 non; Plummers Island, Md., August 1.1, 1905, H. S. Barber; 

 September 27, 1914, October 10, 1914, October 10, 1913, Cabin 

 John, Md., August IS, 1914, R. C. Shannon; Chain Bridge, Va., 

 September 14, Banks; Rosslyn, Va., September 22, 1912, F. 

 Knab. 



L. testaceus Loew. Great Falls, Va., June 19, Banks; Plum- 

 mers Island, Md., May 30, 190S, McAtee." 



L. virgatus Coquillett. Great Falls, Va., July 22, Banks; 

 Difficult Run, Va., July 7, 1915; Dead Run, Va., June 22, 1915, 

 R. C. Shannon; Virginia near Plummers Id., August 22, 1910, 

 McAtee; Plummers Island, Md., June 20 to 29, 1915, R. C. Shan- 

 non; Falls Church, Va., June 0, July 4; Glencarlyn, Va., June 

 17, 20, July 2; Washington, I). C., "June 22, Banks; Beltsville, 

 Md., August S, lill 5, McAtee. 



