272 NEARCTIC ERYTHRONEURA (hOMOPTERa) 



Erythroneura vulnerata Fitch 



E. [rythronenra] rnlneraia, Fitch, Asa. Catalogue, with References and 

 Descriptions of the Insects Collected and Arranged for the State Cabinet of 

 Natural History. Fourth Annual Report of the Regents of the University 

 of the State of New York on the State Cabinet of Natural History, 1851, pp. 

 62-63. Reprint J. A. Lintner, Ninth Report on Insects of New York, 1893, 

 pp. 402-403. [New York.]^ 



This species is quite distinct from the other Nearctic forms; 

 it is especially characterized by the short second apical cell, by 

 the angulate base of the fom-th apical cell (fig. 7) and the rather 

 sharply pointed vertex (fig. 5). It has a number of color varie- 

 ties, the details of coloration that come nearest to occuring in all 

 specimens being the pale median line, which in its typical devel- 

 opment is percurrent over vertex, pronotum and scutellum, the 

 pale cross-veins and dark apical cells, hyaline at tip, and with a 

 hyaline band near apex across at least the fourth cell. 



The known range of E. vulnerata, as a whole, extends from Que- 

 bec, Ontario and Colorado south to Virginia, Texas and Arizona. 



Key to the Color Varieties 



A. Clavus with conspicuous pale areas other than a single large spot. 



B. Tegminal color markings chiefly smoky brown to black, pale areas 



conspicuous by contrast var. decora new variety, p. 274. 



BB. Tegminal color markings otherwise, pale areas less conspicuous. 

 C. Markings of scutellum and anterior parts about the same color as 

 those of tegmina. 

 D. Tegminal color markings greenish brown to fulvous. 



var. vulnerata Fitch, p. 273. 

 DD. Tegminal color markings yellowish red to maroon. 



var. vulnerata Fitch, red form, p. 273. 

 CC. Markings of scutellum and anterior jxirts smoky to black; of teg- 

 mina vivid maroon var. fulmina new variety, p. 274. 



AA. Clavus with incons])icuous pale areas, except sometimes a large basal 

 spot; smoky brown to black varieties. 

 B. Clavus with a single large whitish-yellow basal spot. 



var. niger Gillette, i). 274. 

 BB. Clavus with only iiuiouspicuous semi-hyaline [)ale areas. 



var. nigerrima new variety, p. 275. 



"• Reference's giv(>n in full the fir.st time cited, abbreviated thereafter. 



