312 NEARCTIC ERYTHRONEURA (hOMOPTERA) 



CC. Dorsal surface without dark markings other than on costal plaques 

 and in apical cells. 

 D. Ground color milky white, nearly opaque. 



E. Color markings red var. delicata new variety, p. 317. 



EE. Color markings yellow. 



var. delicata new variety, yellow form, p. 317. 

 DD. Ground color otherwise. 



E. Dorsal surface of abdomen chiefly dark, showing through the 



whitish to greenish-yellow hyaline tegmina; color markings 



often less contrasted, the red of a vermilion hue (jasper red). 



F. Color markings usually paler within, covering half or more of 



tegmina var. rubra Gillette, p. 315. 



FF. Color markings not paler within, covering less than half of 



tegmina var. rubrella new variety, p. 316. 



EE. Dorsal surface of abdomen usually pale; color markings (when 

 red more contrasted), paler than jasper red. 

 F. Tegminal markings rather attenuate and more or less inter- 

 rupted. 



G. Color markings red var. comes Say, p. 312. 



GG. Color markings yellow. 



var. comes Say, yellow form, p. 313. 

 P^P\ Tegminal markings broader and more fused. 



G. Markings narrower, interrupted by sanguineous, only at 

 middle, if at all; a color mark on apex of clavus. 



H. Color markings red var. vitifex Fitch, p. 314. 



HH. Color markings yellow. 



var. vitifex Fitch, yellow form, p. 314. 

 GG. Markings broader, pale red to sanguineous, outlined Ijy 

 brighter red; apex of clavus pale. 



var. elegans new variety, p. 315. 



A A. Upper surface pale yellowish to whitish hyaline; apical cells somewhat 



fumose var. nudata new variety, p. 316. 



Erythroneura comes var. comes Say 



T .[<'Ui(joni(i\ conies. Say, Thomas. Desc. New Hem. Ins., Journ. Ac. Nat. 

 Sci., Phila., IV, 1825, p. 343; Compl. Writings, ii, 1859, p. 259. [Missouri.] 



The "conies'^ type of coloration has been referred to several 

 times in preceding pages; conception of it is based on this variety 

 which on account of its prior description has been taken as a stan- 

 dard for comparative remarks. The essential features of the 

 '^ comes" color pattern are: vertex with an inverted narrowly U- 

 shape vitta connected to spots on inner sides of orbits, or these 



