NO. 2344. SUPERFAMILY TIPULOIDEA— ALEXANDER AND McATEE. 405 



TIPL'LA FULIGINOSA Say. 



The remarkable difference in coloration of the sexes of this species 

 resulted in the male being described by Loew under the name of T. 

 speciosa, and the two sexes being regarded as distinct species for 

 many years. The identity of the two forms was indicated when two 

 pupae collected by Messrs. Barber and Shannon, in debris beneath 

 the nest of a turkey vulture, on Jacksons Island, Maryland, May 23, 

 1913, were bred and one produced a male speciosa, the other a female 

 fuliglnosa. A pair, in copula, collected near Cabin John Bridge, 

 Maryland, June 10, 1917, by K. M. Fouts settled the identity of these 

 forms. The species is fairly common, and dates of collection range 

 from May 28 to June 30. P. I. 



TIPULA GEORGIANA Alexander. 



Beltsville, Maryland, ]May 24, 1917, McAtee. 



* TIPULA GRATA Loew. 



The lectotype was collected in the District of Columbia by Osten 

 Sacken. 



TIPULA HEBES Loew. 



Frequent ; season August 1 to September 7. F. I. 



TIPULA HERMANNIA Alexander. 



Cabin John Bridge, Maryland, June 9, September 14, 1915, R. C. 

 Shannon; Oxon Run, Maryland, September 6, 1915; Beltsville, 

 Maryland, September 3, 1916, McAtee. 



* TIPULA IGNOBILIS Loew. 



The lectotype was collected in the District of Columbia by Osten 

 Sacken. 



TIPULA IROQUOIS Alexander. 



Great Falls, Virginia, April 20, 1913, C. P. Heinrich. 



TIPULA JOHNSONIANA Alexander. 



Plumniers Island, Maryland, June 7, 13, 1914; Maryland near 

 Plummers Island, June 2, 1916, McAtee. 



TIPULA LONGIVENTRIS Loew. 



Plummers Island, May 29, 1919, H. L. Viereck, June 8, 1914, E. A. 

 Schwarz and H. S. Barber ; Dead Run, Virginia, June 6, 1914, R. C. 

 Shannon: Glencarlyn, Virginia, June 1, 1918, Mount Vernon, Vir- 

 ginia, June 4, 1916, McAtee ; Washington, District of Columbia, May 

 18, 1903, W. V. Warner. 



