LAWSON: KANSAS CICADELLHXE. 85 



KEY TO SPECIES 



A. Head as wide as pronotum, vertex wider than long, face in profile 

 strongly curved. 

 B. Head marked with distinct lines forming a pattern. 



C. Head pattern complex, no parallel lateral lines; length 



over 6 mm. hieroglyphica. 



CC. Head pattern simple, with median and lateral parallel 



lines; length 6 mm. or less. gothica. 



BB. Head marked with definite spots, not forming a distinct pat- 

 tern, atropunctata. 

 AA. Head narrower than pronotum, vertex as long as wide, face in pro- 

 file only slightly curved. occatoria. 



Cicadella hieroglyphica (Say). 



(PI. 9, figs. 1-3.) 

 Tettigonia hieroglyphica Say, Jl. Acad. Nat. Sci. Phila., vi, p. 313, 1831. 



Tettigon 

 Tetiigon 



hieroglyphica Sign., Ann. Soc. Ent. Fr., ser. 3, iii, p. 805, 1855. 

 hieroglyphica G. & B., Hemip. Colo., p. 81, 1895. 



Tettigon hieroglyphica Ball, Proc. la. Acad. Sci., viii, p. 51, 1901. 



Tettigon lla hieroglyphica Van D., Trans. San Diego Soc. Nat. Hist., ii, p. 52, 1914. 



Tettigon lla hieroglyphica DeL., Tenn. St. Bd. Ent., Bui. 17, p. 20, 1916. 



Cicadella hieroglyphica Van D., Cat. Hemip. N. A., p. 597, 1917. 



Cicadella hieroglyphica Ols., Bui. Am. Mus. Nat. Hist., xxxviii, p. 3, 1918. 



Form: Rather stout. Length, 6 to 7 mm. Vertex bluntly conical, 

 wider than long. Pronotum nearly twice as wide as long, posterior angles 

 broadly rounded, posterior margin medially emarginated. Elytra broad, 

 but exceeding the abdomen. 



Color: Varying from brick- red to greenish and slaty blue. Black 

 markings on vertex very strong and distinct, enclosing a light colored T 

 on basal half. Elytra with pale bands along costal, claval and sutural 

 margins. 



External genitalia: Female, last ventral segment about as wide as 

 long, lateral margins narrowed posteriorly, posterior margin triangu- 

 larly produced; pygofers long and narrow, equalling or slightly exceed- 

 ing ovipositor, bearing a few stout hairs. Male, last ventral segment less 

 than twice as wide as long; plates long, broad at base, but tapering to 

 long acute apices, margins fringed with short hairs; pygofers long and 

 narrow, equalling or exceeding plates and bearing stout hairs. 



Male internal genitalia: Styles short, distinctly bent in at point of at- 

 tachment to connective by a large, heavily chitinized lobe, then curving 

 outward and tapering gradually to blunt apex, with an outwardly pro- 

 jecting process; connective slender, Y-shaped, stem of Y broadening to 

 broad base ; oedagus with pair of short processes extending dorsad from its 

 point of attachment to connective, a long process leaving it dorsally from 

 a point a little past its middle, and a similar longer one leaving it apically, 

 the latter to the left of the former. These two processes are narrow and 

 long, narrowest at the base, and widening to a point shortly before the 

 apex where they are the widest, the right one wider than the left one, 

 and then tapering to the acute tips. A pair of somewhat narrow tri- 

 angular chitinous processes extend from the base of the anal tube to the 

 main body of the oedagus. 



