W. L. MC ATEE 315 



of blood-brown; in the yellow vaiiety of ziczac it is the subsid- 

 iary markings, not the principal vittae, that are yellow, l)nt a yel- 

 low form of vitifex has been found in which all of the color mark- 

 ings are affected. Various intergrades between the red and 

 yellow forms occur as those with color markings on head or even 

 all in front of costal plaques yellow, the remaintler red, or those 

 with the anterior markings and tips of clavi yellow, the remainder 

 red. 



Length, 2.73 mm.; vertex: LM 7, LE 3.5, WA 12, WP 19.5, OA 6.5, OP 

 11, OH 16; pronotum: L 11, W 20.5; tegmeii 14-55. Measurements from a 

 female; Washington, District of Columbia, July 21, 1913, (W. L. IMcAtee). 



Other specimens examined (2.64 to 2.72 mm.), Phumner's Is- 

 land Maryland, Sept. 12, 1914, (W. L. McAtee), [W. L. M.J. 



Erythroneura conies var. elegans new variety 



This variety (HfTers from vitifex in having broader tegminal vittae, pale 

 bluish-red to dusky within, brighter margined, which are in touch for a greater 

 cUstance along the commissure (at middle of clavus) ; the posterior i)ale spot 

 enclosed by them is less extensive and the tips of the clavi are not marked 

 with red; the latter feature distinguishes this variety, also from var. rubrn. 



Length, 2.6 mm.; vertex: LM 6, LE 3, WA 11, WP 17.5, OA 5.5, OP 10.5, 

 OH 15; pronotum: L 10, W 19; tegmen 12-55. 



Typc—d"; Plummer's Island, Maryland, Jan. 11, 1914, (W. L. 

 McAtee), [W. L. M.]. Paratijpes (2.54 to 2.83 mm.); same local- 

 ity as type, March, April, October, November, December; Ox- 

 ford, Indiana, Nov. 1, 1914, (W. L. McAtee); Iowa City, Iowa, 

 Oct. 30. 1915, (L. L. Buchanan); Denver, Colorado, Sept. 11, 

 1914, (E. C. Jackson), [W. L. M.]: North East, Pennsylvania, 

 May 16, 1912 (Quaintance No. 6969), (F. Johnson), [U. S. N. M.]. 



Erythroneura comes var. rubra C!illctte 



Typhlocyla comes rar. rubra. Gillette. C. P. Am. Typhlocybinae, 1S98, p. 

 764. [Type No. 3450, U. S. N. M., which is labelled, "Mich. 1972."] 

 In this variety all of the color markings arc ln-oad(Mied, the 

 vittae on head and usually a short-armed Y-shaped vitta on pro- 

 notum being unusually heavy, and the tegminal markings oc- 

 cupying more than half of the tegminal surface; the apex of th(^ 

 clavus is red and the vitta. between it, posterior part of costal 

 plaque and cross-veins is particularly broad; the costa poster- 

 ior to costal plaque also is often red. The red markings vary in 

 shade from a pale bluish red outlined in In-ighter color, to a solid 



TRANS. AM. ENT. SOC, XLVI. 



