306 NEARCTIC ERYTHRONEURA (hOMOPTERA) 



7^^pg_9; Oxford, Indiana, November 1, 1914, (W. L. Mc- 

 see), [W. L. M.]. Paratypes, with same data, as measured spec- 

 imen; Iowa City, Iowa, Sept. 24, 1915, (L. L. Buchanan), [W. L. 

 M.]; Boulder, Colorado, December 5, 8, 1887, on grape, ('C. S. 

 Fau'rot); Philadelphia, Pennsylvania, July 10, 1880, on grape, 

 (W. H. Batt), [U. S. N. M.]: same data as type; Plummer's Is- 

 land, Maryland, Noveml)er 30, 1913, September 13, 1914, July 14, 

 1915, (W. L. McAtee), [W. L. M.]. 



Erythroneura vitis var. stricta new variety, yellow form 



Vertex, pronotum and scutellum chiefly yellow, the last two more or less 

 underlaid by brownish; tegmen with three cross-bands, the anterior yellow 

 to red, involving base of corium not beyond apex of scutellum and narrowly 

 extended along costa, the median broad, semi-elliptical, red, duller within, 

 terminating laterally in a blackish marking on posterior third of costal plaque; 

 I)osterior cross-band formed by dusky clouds in apical cells; a branching red 

 line on cross-veins and adjacent parts of* longitudinal veins. Legs and face 

 pale yellow; mesosternum black; body slaty with lighter edgings, varying 

 to wholly pale yellowish. 



Length, 2.8 mm.; vertex: LM 7, LE 3.5, WA 13.5, WP 21, OA 7, OP 12, 

 OH 17; pronotum: L 11, W 22: tegmen 15-55. 



Type— 9 ; labelled "Colo. 2186," [U. S. N. M.]. Allotype— 

 d^; Riley Coimty, Kansas, (Marlatt), [U. S. N. M.]. 



Erythroneura tricincta Fitch 



E.[rythroneura] Iriciucta. Fitch, Asa. Cat. State Cabinet, N. Y., 1851, 



p. 63. Lintner Reprint, 1893, p. 403. [New York]. 



One of the most easily recognized species; with three distinct 

 red or dusky cross-bands, the anterior not covering bases of teg- 

 mina; pale areas between the tegminal bands usually with longi- 

 tudinal color streaks. Some of the more highly colored forms 

 of this species, particularly those with red markings on vertex 

 well developed, suggest affinity with J5J. comes; however, the ant- 

 erior cross-band always is unlike any pronotal marking of the 

 comes varieties, and the red or yellow markings on tegmina are 

 long streaks along the veins, instead of irregular spots, often con- 

 nected obliquely across tegmen as in comes. 



The known range extends from New Hampshire Ontario and 

 Wisconsin to North Carolina, Texas and Colorado. 



