278 NEARCTIC ERYTHRONEURA (hOMOPTERA) 



Type— 9; Oxford, Indiana, No\. 1, 1914, (W. L. McAtee), 

 [W. L. M.]. Paratypes — (2.9 to 3.1 mm.) same data; Dunn- 

 Loring, Virginia, August 30, 1916; Scott's Run to Balls Hill, 

 Virginia, August 12, 1917, (W. L. McAtee), [W. L. M.]. 



Erythroneura obliqua var. pelta new variety 



Differs from the yellow form of the typical variety in having the scutellum 

 (except pale median vitta and basal triangles), and mesopleurae deep orange 

 and the longitudinal color vittae somewhat deeper yellow. 



Length, 2.7 mm.; vertex: LM 6, LE 3, WA 12, WP IS; OA G..5, OP ll.r,, 

 OH 16; pronotum L 11, W 20; tcgmen 17-55. 



Type — sex unknown (a])domen missing); Plummer's Island, 

 Maryland, June 8, 1913, (W. L. McAtee), [W. L. M.]. 



Erythroneura obliqua var. clavata De Long 



Ttjphlocyba obliqua var. clnvala. De Long, D. M. Jassoidea of Tennessee. 

 Bull. 17, Tenn. State Bd. Ent., June, 1916. [Clarksville, Tennessee.] 

 Markings of vertex and pronotum similar to those of var. obliqua but 



heavier, scut(>llum chiefly, and clavi entirely, bright red, the remainder of 



tcgmiua uniform sulphur-yellow to ajiical area, which is milky white to pale 



yellow. 



Length, 3.06 mm.; vertex: LM 6.5, LE 4, WA 12, WP 20.5, OA 7, OP 12, 



OH 17.5; pronotum: L 11.5, W 23; tegmen 15-62. Measurements from 



the type specimen, very kindly loaned by Mr. D. M. D(> Long, who collected 



it at Clarksville, Tennessee, June 29, 1915. 



Erythroneura obliqua var. dorsalis Gillette 



'rilphlortilxi obliqua var. dormii^ Ciillette, C. P. Am. Typhlocybinae, 1S9S, 

 p. 757. ["Many localities."] 



Cxillette states that: "Variety dorsalis, new variety has the red 

 markings so run together as to form a continuous red or dark 

 (sometimes almost black) dorsal stripe the entire length of the in- 

 sect." No type was designated and no locaUty mentioned. The 

 varietal name dorsalis Gillette, therefore, is hereby restricted to 

 the form of ohliqua in which the typical red vittse are so broadened 

 and run together as to form a practically continuous stripe. 

 Other varieties with longitudinal stripes not answering to this des- 

 (;ription are mentioned in succeeding paragraphs. 



In its best develoi)ment variety dornaUs has the head and i)ronotum, except 

 nnrrow lateral margins and the scutellum and clavi, entirely covered by a 

 broad contiimous red stripe; the corial vittae are unusually broadened, 

 originate about middle of (iorium .and are cut sharjjly off at cross-veins; apical 



