OF WASHINGTON, VOLUME XIX, 1917 107 



Great Falls, Va., nymphs, August 5, 1915, September 12, 1912, 

 Caudell, October 4, 1916, McAtee; Chain Bridge, Va., September 

 13, 1916, Caudell. 



Ghloealtis conspersa Harris. 



Glen Echo, Aid.. July 10, 1914, many of both sexes, all mature 

 except one large female nymph; in edge of open woods, Caudell; 

 Great Falls, Va., October 4, 1916, McAtee. 



Arphia sulphurea Fabricius. 



Common; Plummers Island, adults May 4 to September 1, 

 nymphs August 4 to October 12; Great Falls, Aid., June 12, 

 1904, Caudell; Maryland near Plummers Island, March 9 to 

 May 9, 1915, McAtee; Cabin John Bridge, Mel., May 10, 1913, 

 \V. "D. Appel; Glen Echo, Md., July 10, 1914, Caudell: Great 

 Falls, Va., May 19, 1915, Virginia near Plummers Island, May 

 8, 1915, McAtee; Chain Bridge, Va., May 23. Some individuals 

 have the hind femora conspicuously bifasciate externally while 

 in others they are unicolorous. 



Arphia xanthoptera Burmeister. 



Plummers Island, April 29, 1905 (nymph), D. H. demons, 

 June 10, 1906, July 16, 1905, October 12 and 27, 1906; Maryland 

 near Plummers Island, September 29 and November 3, McAtee. 



Chortophaga viridifasciata Ee Geer. 



Very common; Plummers Island, nymphs April 5 to October 20, 

 adults at intermediate dates; Great Falls, Md.. May 23 and 

 August 11; 191"), McAtee; Maryland near Plummers Island, 

 April 1, 1916 (nymph), McAtee; May 9, 1913, W. D. Appel, 

 .May 9, 19]."), July 2, 1916, McAtee; Cabin John Bridge, Md., 

 May 4 and 10, 1913, W. D. Appel, March 27, 1902, many nymphs, 

 some given, some brown, and some given with top of head, thorax, 

 and abdomen reddish brown, Caudell; April 19; High Island, 

 Md., November 10, 1901 (nymphs), Caudell; Bellview to Diffi- 

 cult Run, Ya., September 19. I'Mli. Caudell; Great Falls, Va., 

 May 10 and 19, 1915, October I. 191(5 (nympln. McAtee; Seott's 

 Run, Va., June 2, 1912, W. I). Appel, July 25. 1915, J. Silver; 

 Chain Bridge, Va., September 13. 1916, Caudell. 



Encoptolophus sordidus Bmnicistn . 



Dalecarlia Reservoir, D. ('., AugusJ 22, 1915. McAtee; Black 

 Pond, Va., September 21, 1911. \Y. D. Appel, Bellview 1<> Diffi- 

 cult Hun. Ya., September 19, 191 ii. Chain Bridge, Va., October 

 24, 1915, McAtee; September 13, 1916, Caudell. 



