308 NEARCTIC ERYTHRONEURA (hOMOPTERa) 



Other specimens (2.64 to 2.7 mm.) examined were from the 

 same locality as measured individual, March, April, August, Sep- 

 tember; Dead Run, Fairfax County, Virginia, April 6, 1913; Blue- 

 mont, Virginia, July 1, 1914, (W. L. McAtee); Iowa City, Iowa, 

 June 11, 1915, (L. L. Buchanan), [W. L. M.]; Riley County, Kan- 

 sas, July, (Marlatt) ; Iowa, (Gillette) ; Central Missouri, on grape- 

 vine, July, [U. S. N. M.]. 



Erythroneura tricincta var. tricincta, red form 



Like tlie preceding but with longitudinal color streaks red; basal half of 

 scutellum and most of pronotum covered by the dusky anterior cross-band; 

 cross-band two sanguineous to dusky, bluish to black on costa. 



Length, 2.77 mm.; vertex: LM 7, LE 3.5, WA 12.5, WP 19, OA 6.5, OP 

 10, OH 14; pronotum: L 10, W 19; tegmen 13-56. Measurements from a 

 female; Plummer's Island, Maryland, March 28, 1915, (W. L. McAtee). 



Other specimens (2.64 to 2.97 mm.) examined, from the same 

 locality as the measured individual, January, March, April, De- 

 cember, (W. L. M.); Onaga, Kansas, (F. F. Crevecoeur); Clarks- 

 ville, Tenn., April 28, 1909, [U. S. N. M.]. 



Erythroneura tricincta var. diva new variety 



Cross-bands one and two chiefly bright red; cross-band one covering most 

 of pronotum and base of scutellum, where its color sometimes is brownish 

 yellow instead of red; cross-band two, bright red to costal plaque which is 

 chiefly blackish, more or less overlaid by opaque white; longitudinal color 

 markings sulphur yellow. This is Fit('h's "var. a." 



Length, 2.8 mm".; vertex: LM 7, LE 4, WA 13, WP 22, OA 7, OP 12, OH 

 16; pronotum: L 11, W 21; tegmen 14-55. 



Type— 9 ; Plummer's Island, Maryland, July 26, 1914, (W. L. 

 McAtee), [W. L. M.]. Paratypes (2.77 to 2.97 mm.) from same 

 locality as type, January, September, October, December ; Dyke, 

 Virginia, May 19, 1918, (W. L. McAtee), [W. L. M.]: Riley 

 County, Kansas, July (Marlatt) ; Washington, District of Colum- 

 bia, May 30, 1896, [U. S. N. M.]. 



Erythroneura tricincta var. calycula new variety 



(ircjund color ivory, a broad U-shai)ed dusky to black band on ba.se of 

 scutellum and sides of pronotum, the often concolorous eyes extending it on 

 vertex; cross-band two sanguineous to dusky, black on costa; longitudinal 

 color streaks red. 



Length, 2.87 nun.; vertex: LM 7.5, LE 3.5, WA i:;, WP 20, OA 6.5. OP 

 11.5. OH 16; pronotum: L 11, W 21; tegmen 13-58. 



