88 TETTIGID.-E OF NORTH AMERICA 



of the pronotum, posteriorly scarcely broadly concave; lateral 

 lobes of pronotum posteriorly strongly bisinuate, the superior 

 lateral sinus distinct, the inferior sinus moderately deep, 

 obtuse angulate incised, the posterior inferior angle of lateral 

 lobes rounded, laterally distinctly dilate; scapular area of 

 moderate height. Elytra distinctly elongate, apex subrounded; 

 wings fully developed, passing the pronotal process from one- 

 third to one millimeter. Inferior margin of anterior femora 

 often dentate-sinuate or may be sublobate at the outer third; 

 margins of middle femora distinctly compressed, dentate-sinu- 

 ate, below frequently sinuate-sublobate; posterior femora 

 moderately large, the f^rst and second pulvilli subspiculate, 

 together about as long or a little longer than the third. 



Length body, $, I3-I3-9 mm- pronot., 11.5-13 mm.; 

 post, fem., 5.5 mm.; $, body, 11-11.7 mm.; pronot., 9.9-1 1 

 mm.; post, fem., 4- 5-5-2 mm. 



Tettix obscurus, Hanc, Trans. Am. Ent. Soc, xxiii, 

 239, pi. 7, Figs. 9, 9a, 10, loa, pi. 9; figs. 23, 25 (1896); 

 Lugger, Orth. Minn., 109 (1898); Scudd., Cat. Orth. U. S., 

 17 (1900); Scudd., Index N. Am. Orth., 320 (1901). 



Tettix inflatus, Hanc, Trans. Am. Ent. Soc, xxiii, 238, 

 pi. 7, fig. 8; pi. 9, fig. 26 (1896); Scudd., Cat. Orth. U. S., 

 17 (1900); Scudd., Index N. Am. Orth., 319 (1901)- 



Tettix angustus, Hanc, Trans. Am. Ent. Soc, xxiii, 

 238, pi. 6, figs. 4, 4a; pi. 9. fig- 24(1896); Scudd.. Cat. Orth. 

 U. S., 16(1900); Scudd., Index N. Am. Orth., 317 (1901.) 



Allied to arenostis, from which it may be distinguished by 

 the slightly larger form, with vertex less depressed anteriorly, 

 the frontal costa in profile more projecting beyond the eyes, 

 the distance being equal to about one-fourth the diameter of 

 one of them— in ^aremmis it is nearer one-sixth— the sinuation 

 more distinct between the lower portion of the eyes; viewed 

 in front the facial costa is more appreciably furcate; the eyes 

 not so prominent; the pronotum, while subulate, not so long 

 extenuate posteriorly; the elytra more elongate. 



Locality, Atherton, Mo. (Adams); Kansas City, Mo. 

 (Adams); Ames, Iowa (Ball); Vigo Co., Ind. (Blatchley); 

 Montello, Wis., L. Puckaway (Hancock); Riverside, 111. 



