AST. 18 JASSID GENUS TYPHLOCYBA McATEE 39 



narrowed from base, outcurved, acute apically. Aedeagiis with two 

 stout but rapidly tapering divergent rami, which are abruptly in- 

 curved at two-thirds of their length and terminate in delicate acute 

 processes Avhich cross apically; on the abrupt angle is a short acute 

 ihorn which is difficult to see except in exact profile (figs. 90 and 94). 



Length, 4 nun. 



Holotype. — Male, Washington, D. C, July 2, 1913; paratype 

 males; Bluemont, Va., July 1, 1914, ^Y. L. McAtee (McAtee) ; Madi- 

 son, Wis., August 11, 1918, E. D. Ball (Ball). 



TYPHLOCYBA APPENDICULATA Malioch 



Typhlociiha appcndwulata Malloch, J. R., A new species of Typblocyba 

 (Heiniptera Homoptera, Typhlocybidae), Can. Eut., vol. 52, no. 4, 

 April 1920, p. 95 [Elizabeth, 111.]. 



Male. — Head and thorax pale j^ellowish, tegmina whitish hyaline 

 with a broad dusky band anterior to crossveins, which is sometimes 

 reduced to poorly defined elongate spots, some specimens with 

 more or less dusky clouding also on anterior part of corium and on 

 clavus, apical cells slightly fumose (fig. 10) ; underparts stra- 

 mineous. Hypopygium: Upper posterior angle of ninth segement 

 rounded acute and incurved ; as seen from side, the posterior margin 

 slightly emarginate (fig. 95) in the lower two-thirds, and the 

 upper end of the emargination is a small tooth; lower angle a little 

 produced downwardly; outer surface bristly and rugose, margin 

 serrulate interiorly. Outer clasper gradually narrowed from base 

 for about two-thirds of its length where a strong, somewhat falcate, 

 fairly acute pointed process is given off externally (figs. 9G-97) ; 

 portion of cla.sper beyond this point gradually tapering, rounded at 

 apex. Inner clasper broad at base, gradually tapered to the acute 

 outwardly directed apex, curved so that the inner margin forms al- 

 most a quarter circle (fig. 98). Aedeagus with a slender stem be- 

 tween connective and the bifurcation ; the rami are stout, outcurved, 

 appealing from above like the cross-section of a goblet, each is down- 

 curved and incurved apically in the form of a long pointed process 

 (fig. 99.) For clearness only one of the processes is shown in drawing. 



Female. — Coloration as in male. Eighth sternite slightly emar- 

 ginate laterally, convex medially. 



Length, 3.5 mm. 



A male and several females, Urbana, 111., fJuly 9-20, 1920, one 

 female Elizabeth, 111., July 8, 1917, (111. State Nat. Hist. Survey) ; 

 Ames, low-a, September 11, 1919, E. D. Ball; June 19, 1897 (Ball) ; 

 Washington, D. C, June 18, 29, 1925, W. L. McAtee (McAtee). 



