W. L. MC ATEE 277 



EE. Scutellum otherwise. 



F. Color markings red var. obliqua Say, p. 277. 



FF. Color markings yellow to pellucid or livid. 



var. obliqua Sa>', yellow form, p. 277. 

 AA. Color markings nearly or entirely absent. 



var. eluta new variety, p. 277. 

 Erythroneura obliqua var. obliqua Say 

 Bibliographical references same as for species. 



Ground color of seutelhnTi and anterior upper surface pale opaque yellow, 

 markings two orange-red vittae connivent on vertex, forming an inverted 

 V-shaped mark common to vertex and pronotum; scutellum with median 

 pale yellow opaque vitta, bordered by two narrow orange red lines, tip orange 

 red. Tegmina whitish hyaline, bearing orange-red markings as follows: 

 vitta on clavus interrupted except for dots near radial margin, then continued 

 along that margin nearly to tip of clavus; a long vitta along third sector, 

 curved at apex along part of base of fourth apical cell; narrow stripe along 

 anterior half or more of costal margin; thread of color along first sector, 

 and sometimes along cross-veins; apical cells slightly yellowish smoky; 

 costal plaques greenish yellow. Ground color below pale yellow, stripe 

 along pleura pale reddish; arcuate cross-band on lower surface of vertex 

 and touches of color elsewhere on face, orange-yellow to red; fore tibiae 

 washed with reddish; claws black. 



Length, 3 mm.; vertex: LM 8, LE 3.5, WA 12, WP 17, OA S, OP 11, 

 OH 15; pronotum: L 11, W 18; tegmen 14-61. Measvu-ements from a 

 female; Plummer's Island, Maryland, Nov. 30, 1913, (W. L. McAtee). 



Other specimens (2.6 to 3.1 nun.) examined were collected at Plummer's 

 Island, Bladensburg and Branchville, Maryland; Dead Run, Maywood and 

 Mount Vernon, Virginia, and. Iowa City, Iowa, (^^'. L. M.): Washington, 

 District of Columbia; Clarksville, Tennessee, and Opelousas, Louisiana, 

 [U. S. N. M.]. 

 Erythroneura obliqua var. obliqua Say, yellow form 



Color pattern as in the red form, Init with the color markings varying from 

 yellow through light-greenish-yellow to pellucid or livid; tegmina more hyal- 

 ine; costal placjues whitish usually obscured by the color markings. 



Length, 2.8 mm.; vertex: LM 7, LE 3.5, WA 12, WP 17, OA 6, OP 10.5, 

 OH 14; pronotum: L 11, W 19; tegmen, 13-59. Measurements from a 

 female; Plummer's Island, Maryland, April 27, 1913, (W. L. McAtee). 



Other specimens examined were collected at Plummer's Island, Odenton, 

 Laurel, and Beltsville, Maryland; Anacostia, District of Columbia; Bluemont, 

 Great Falls, Maywood and Glencarlyn, Virginia, and Oxford, Indiana, 

 (W. L. M.). 

 Erythroneura obliqua var. eluta new variety 



Scutellum and anterior jxirts and under sui'face pale yellowish; tegnuna 

 whitish hvaline. 



Length"; 3.03 mm.; vertex: LM 6.5, LE 3.5, WA 12. WP 19.5, ().\ 7, OP 

 10, OH 16; pronotum: L 11, W 21; tegmen 15-62. 



TRANS. AM. ENT. SOC, XLVI. 



