PROC. ENT. SOC. WASH., VOL. 20, NO. 9, DEC., 1918 203 



T. cymatophorus Osten Sacken. A striking and handsome 

 species for which there is only one record, Poolesville, Md., July, 



1898, F. C. Pratt. 



T. flavus Macquart. We are at the northern edge of the 

 range of this peculiar species (usually called mexicanus Z/.), and 

 there is but a single record, namely, Garrett Park, Md., July 4, 



1899, W. R. Maxon. Mr. Maxon says this specimen probably 

 was swept from vegetation on low wet ground. 



T. fulvulus Wiedemann. Common; extreme dates of collec- 

 tion, May 20 (male, first female, June 11) to August 28. Males 

 taken also in June, July, and August (16th). (P. I.) 



T, giganteus DeGeer. Beltsville, Md., July 30, 1916, Wal- 

 ton; Plummers Island, Md., August 27, 1905, McAtee; Falls 

 Church, Va., August 27, 1912, C. T. Greene. 



T. hirtioculatus Macquart. Branchville to Beltsville, Md., 

 June 4, 1914, L. O. Jackson, McAtee; Beltsville, Md., July 4, 

 1916, Walton, July 9, 1916, McAtee; Cabin John Bridge, Md., 

 July 1, 1916, R. M. Fonts, Plummers Island, Md., June 6, 1906, 

 Va., near Plummers Island, June 19, 1909, McAtee; Dead Run, 

 Va. June 19, 1915, R. C. Shannon; Great Falls, Va., June 27, 

 1909, Glencarlyn, Va., June 11, 1911, F. Knab; Falls Church, 

 Va., May 27, 1916, J. N. Knull; Washington, D. C., June, 1898. 



T. lasiophthalmus Macquart. Branchville to Beltsville. 

 Md., June 4, -1914; Beltsville, Md., May 28, 1916; McAtee; June 

 1, 1916, R. C. Shannon; June 18, 1916, McAtee; Plummers 

 Island, Md., male at light, June 16, 1916, R. C. Shannon; Wash- 

 ington, D. C., May 23, G. E. Quinter; June 3, 1913, McAtee; 

 Falls Church, Va., May 18, June 11, Nathan Banks. 



T. lineola Fabricius. Common; season May 18 to Septem- 

 ber 17; males taken, June 4 and 23 and September 3 on the last 

 date, at light, Plummers Island, Md., H. S. Barber. (P. L) 



T. longus Osten Sacken. Bethesda, Md., July 17, 1913, J. 



C. Crawford; Plummers Island, Md., August 19, 1906, McAtee; 

 Rock Creek, D. C., August 3, 1913, R. C. Shannon. 



T. melanocerus Wiedemann. Beltsville, Md., June 18, 1916, 



D. C., Mabbott; July 6, 1916, C. T. Greene; July 14, 1916, F. 

 R, Cole; July 26, 1918, Walton; August 6, 1916, August 21, 1917. 

 McAtee; Falls Church, Va., male, June 13; female on flowers of 

 Ceanothus, June 23; July 17, Nathan Banks; Mt. Vernon, Va., 

 June 27, 1915, McAtee. 



T. molestus Say. Common; extreme dates of capture June 

 14 and August 11; a male taken June 25, 1915, Beltsville, Md., 

 R. C. Shannon. (P. I.) 



T. nigrescens Palisot de Beauvois. Fairly common; season 

 June 24 to August 24; males taken, July 6 and 28. (P. I.) 



