LAWSON: KANSAS CICADID.^. 337 



green mark. The furrows are also more or less blackened and the lateral 

 angles bear black spots which sometimes extend in a narrow line along 

 the anterior margin of the collar. Mesonotum green, strongly marked 

 with black as follows: Between the arms of the W, large triangular 

 spots laterad of these tapering to posterior margin, and just caudad of 

 the W, a distinct cross ^^•ith a short and stout standard and with the 

 apices of the arms enlarged. The cruciform elevation is light. Ab- 

 dominal terga are black, the posterior margins testaceaus, the first seg- 

 ment and sometimes also the second, with a distinct median testaceous 

 line. The wings, as described by Say, are "vitreous immaculate," the 

 cross veins being not at all darkened. The veins of the fore wing, with 

 the exception of media, are green basally and testaceous apically. The 

 basal areoles of the fore ^vings are entirely clear, while the flaps of both 

 wings are gray. Beneath the body is entirely pruinose in fresh specimen.^, 

 except for the median black stripe on the abdomen. The opercula are 

 lighter than the rest of the under side. The legs are pale brown, with a 

 distinct tendency to have ridged femora and greenish tibiae. 



Form: The following are the measurements in millimeters of the 

 specimens at hand : 



Length of body 21 to 23 



Width of head 9 



Expanse of fore wings 66 



Greatest width of fore wing 9 to 9.5 



Greatest width of operculum 5.25 to 5.5 



Greatest length of operculum 6.5 to 6.75 



The opercula are broad and short, the inner margins strongly angled, 

 •with the points of the angles distinctly separated, and with the posterior 

 margins broadly rounded. 



Genitalia : Supra-anal plate of male broadly and deeply excised be- 

 tween the rounded but slightly toothed lateral angles. Uncus, viewed 

 laterally, is stout basally, with a short inner tooth and an outer larger 

 curving and acutely-pointed one. Viewed caudally it is wish-bone shape.!, 

 the arms gradually separating to the apices. They are not as widely 

 separated or as curving as in T. eugraphica. The ventral piece is strongly 

 U-shaped, the arms rather short and slender and widely separated, 

 fitting against the sides of the supra-anal plate. The last ventral seg- 

 ment of the male is not quite twice as wide as long, the sides sinuately 

 tapering to the well-rounded apex. The margins of the pygofers of the 

 female curve evenly to the base of the well developed and acute median 

 spine. The last ventral segment of the female has the sides roundingly 

 narrowed to the deeply emarginate posterior margin, the emargination 

 reaching nearly half way to the base and having its margins slightly but 

 distinctly emarginate. Each of the lateral pieces of the ovipositor bears 

 about eleven teeth or ridges, of which six are large enough to be very 

 distinctly seen. 



Distribution: The only counties in the st-ate from which we 

 have records of this species are Clark, Sumner and Barber. 



22 — Sci. Bui. — 3058 



