LAWSON: KANSAS CICADID^E. 331 



and deeply separated and each curves laterad apically. The last ventral 

 segment of the male is nearly twice as wide as long, with the apex broad 

 and truncate and with a very slight median emargination. The pygofers 

 of the female have the usual stout" and acute median tooth which far ex- 

 ceeds the distinctly angulate lateral angles. The last ventral segment of 

 the female has the lateral margins distinctly sinuate and the broad 

 angular emargination of the posterior margin reaches fully half way to 

 the base. Each of the lateral pieces of the ovipositor bears about seven 

 very indistinct and rounded teeth. Should this condition prove constant 

 it would be of taxonomic value. 



Distribution: While we have a goodly number of specimens 

 of this species, an examination shows that they were all taken 

 in Elk county and this seems to be our only record for the state. 

 Van Duzee gives Mississippi, Louisiana, Oklahoma, Texas and 

 Utah as the states in which it has been taken. Thus it seems 

 to be more common in the South, and may prove to be distinctly 

 southern if, as Davis surmises, the Utah record may not be 

 authentic. 



Tibicen marginalis (Walk.). 



(PI. xix, figs. 1-2; pi. xxiv, fig. 9; pi. xxvi, fig. 5: pi. xxvii, fig. 3.) 

 Cicada marginalis Walk., List Homop., iv, p. 1128, 1852 (n. n. for marginata Say). 

 Cicada marginata Say, Jl. Acad. Nat. Sci. Phila., iv, p. 330, 1825; Compl. Writ., ii, 

 p. 251. 



Cicada marginata Uhl., Stand. Nat. Hist., ii, p. 227, 1884. 



Cicada tn 

 Cicada m 

 Cicada m 



Cicada > 

 Cicada m 



rginala Woodw., Psyche, v. p. 68, 1888. 



rginata Uhl., Trans. Md. Acad. Sci., i, p. 150, 1892. 



rginata Macg., Can. Ent., xxxiii, p. 81, 1901. 



rginata Sm. & Grsb., Ent. News, xviii, p. 128, 1907. 



rginata Davis, Jl. N. Y. Ent. Soc., xxiii, p. 4, pi. 2, fig. 1, 1915. 



rginata Davis, Jl. N. Y. Ent. Soc., xxiii, p. 240, pi. 18, figs. 2, 4, 1915. 



Tibicen martrinalis Van D., Check List Hemip., p. 55, 1916. 

 Tibicrn tnarninalia Van D., Cat. Hemip. N. A., p. 493, 1917. 

 Tibicen ntaryinalis Davis, Jl. N. Y. Ent. Soc., xxvi, p. 150, 1918. 



A very large greenish and black or greenish-yellow and black species. 

 Specimens at hand measure from 36 to 39 mm. Smith and Grossbeck state 

 that specimens examined by them averaged over 40 mm. 



Color: Head mostly black, with a broad greenish-yellow stripe along 

 anterior margin from the front to the eyes, a spot of the same color on 

 upper portion of front and also along posterior margin laterad of the 

 lateral ocelli. Pronotum greenish-yellow with two, small, black, median, 

 triangular spots at anterior margin and sometimes with black spots ex- 

 tending cephalad from collar to meet these, thus enclosing an elongate, 

 light, median dash which frequently contains a black median line. Meso- 

 notum mostly black, the W being greenish-yellow with the angles greatly 

 enlarged and laterad of this is a large, almost fulvous spot on each side. 

 The cruciform elevation is of about the same color as these lateral spots. 

 Abdominal terga black with the posterior margins fulvous or testaceous 

 as are also the tympanal coverings of the male. The wings have the veins 

 greenish basally and brownish apically. The cross veins between R, and 



