W. L. MC ATEE 305 



Tijpe^9; Plnmmer's Island, Maryland, July 19, 1914, (W. 

 L. AIcAteo), [W. L. M.]. Pamtypes, same locality as type, Oc- 

 tober, November, December; Great Falls, Maryland, May 23, 

 and Washington, District of ColumV)ia, October, 1895, (F. C. 

 Pratt), July 15, and other specimens from grape, [U. S. N. M.]. 



Erythroneura vitis vur. bistrata new variety 



This variety illustrates the extreme degree of erythrization of this species 

 I have seen; tlie vertex may be pale yellow, but usually it has the normal 

 pair of vittae strongly developed, and it may be almost entirely red; the pro- 

 notum is red with touches of pale yellow on anterior border, with a dot in 

 middle and traces of pale yellow at about two points on the hind margin; 

 scutellum red with a pale median vitta enlarged at apex; tegmen often en- 

 tirely red with the exception of a pale spot at inner base of clavus and another 

 involving apex of clavus and adjoining corium; there may be other traces, 

 however, of both anterior and posterior pale bands, and the costal placiue, 

 except for its posterior blackish marking, and an ecjual sized area behind it 

 and the bases of the apical cells are pale; undersurface and legs chiefly pale 

 yellow. 



Length, 2.S3 mm.; vertex: LM 7, LE 3, WA 12, WP 19, OA 6, OP 11, 

 OH 17; i)ronotum: L 12, W 22; tegmen 14-59. 



Type—&; Plummer's Island, "Maryland, March 28, 1915, (W. 

 L. McAtee), [W. L. M.]. Paratypes (2.64 to 2.97 mm.); from 

 same locality as type, January, February, March, April, May, 

 November, Deceml)er; Maryland near Plunnner's Island, Jan- 

 uary, and Bladensljurg, Maryland, September 7, 1913, (W. L. 

 McAtee), [W. L. M]. 



Erythroneura vitis var. stricta new variety 



Ground color whitish hyaline to pale yellow; vertex chiefly pale, some- 

 times with a few touches of red, pronotum and scutellum chiefly red to dusky, 

 the latter sometimes pale medianly and at tip; tegmen with three cross- 

 bands, the anterior red, narrow, not exceeding scutellum, the middle one 

 narrower than in the other varieties, usually nearly ciuadrilateral in shape; 

 the posterior much as in last variety, pale spaces between the bands broader 

 than in the other varieties: usually half or more of costal plaque bluish or 

 blackish, often overlaid by opaque white; lower surface stramineous to pale 

 yellow. 



Length, 2.S mm.; vertex: LM 7, LE 3.5, WA 12, WP 19, OA 7, OP 11, 

 OH 16; pronotum: L 11, W 20; tegmen 14-50. Measurements from a 

 male; Washington, District of Columbia, October 18, 1S95, on Ccrcis cana- 

 densis, [U. S. N. M.]. 



TR.\NS. AM. ENT. SOC. XLVI. 



