406 ' PROCEEDINGS OF THE NATIONAL MUSEUM. 



* TIPULA MALLOCHI Alexander. 



Cabin John Run, Maryland, June 13, 1910, W. T. Davis. 



* TIPULA MINGWE Alexander. 



Common ; season May 12 to August 28 ; is attracted to light. All 

 specimens so far collected are from the Piedmont Plateau. P. I. 



TIPULA MORRISONI Alexander. 



Maryland near Plummers Island, May 24, 1914; Virginia near 

 Plummers Island, June 2, 1916, June 2, 1918, Four-mile Eun, Vir- 

 ginia, May 31, 1914; Mount A^ernon, Virginia, June 4, 1916, Glen- 

 carlyn, Virginia, June 1, 1919, McAtee; Fort Washington, Main- 

 land, May 26, 1896, C. W. Johnson. 



TIPULA NOVEBORACENSIS Alexander. 



Virginia near Plummers Island, April 20, 1919, McAtee. 



TIPULA PERLONGIPES Johnson. 



Great Falls, Virginia, July 21, 1919, McAtee; Falls Church, Vir- 

 ginia, June 21 1914, July 4, 1913, F. Knab; Eives, Maryland, June 

 14, 1916; in copula, L. O. Jackson: Beltsville, Maryland, June 16, 

 1912, McAtee. 



* TIPULA SACKENIANA Alexander. 



Difficult Kun, Virginia, July 25, 1915, Alexander and McAtee; 

 Falls Church, Virginia, September 26, 1915, Beltsville, Maryland, 

 July 30, 1916, August 6, 1916, August 8, 1915 ; Odenton, Maryland, 

 July 29, 1917, McAtee. 



TIPULA SAYI Alexander. 



Common; season August 17 to October 8; in copula, September 25. 

 V. P. I. 



TIPULA STREPENS Loew. 



Great Falls, Virginia, May 23, 1918, McAtee; Bladensburg, Mary- 

 land, June 4, 1916, L, O. Jackson; Beltsville, Maryland, May 28, 

 1916, McAtee. 



TIPULA SUBMACULATA Loew. 



Common ; dates of collection range from May 24 to July 4. All 

 records from the Piedmont Plateau. P. I. 



TIPULA TRANSLUCIDA Doane. 



Plummers Island, June 19, 1913, at light, R. C. Shannon. 



