138 TETTIGID.^ OF NORTH AMERICA 



viewed from above not advanced so far as the eyes or about 

 as far; frontal carin;e concave, little elevated laterally into 

 curved fronto-lateral carina:. Frontal costa depressed, 

 between the eyes barely or not at all advanced before them, 

 rarely subsinuate, viewed in front narrowly furcate, more or 

 less compressed. Eyes more or less globose. Antenna; fili- 

 form consisting of fourteen articles, inserted barely before the 

 anterior inferior border of the e\'es. Dorsum of pronotuni 

 smoothly granulate, or sabulose or tuberculose; pronotum 

 anteriorly truncate, advanced upon the head to the eyes, 

 posteriorly passing the posterior femora or abbreviated; 

 median carina low, scarcely or little elevated; humeral angles 

 obtuse; lateral lobes of pronotum posteriorly bisinuate, the 

 elytral sinus moderately shallow, posterior inferior angles of 

 lateral lobes turned downwards, apex subacute or subrounded, 

 the inferior margin viewed from above scarcely at all laterally 

 refiexed. Elytra elongate acuminate; wings fully developed, 

 rarely abbreviated. Femora slender, entire, or rarely the 

 anterior femora subcompressed and subundulato-lobate below; 

 posterior tibia; more or less ampliate towards the extremity, 

 carinjE spinose; first article of posterior tarsi little longer or 

 subequal to the third, the third pulvilli distinctly the longest, 

 and flat below, the first and second more or less acute or 

 rounded below. 



Telmatettix, Hancock, Psyche, 7, January (1900). 



DISPOSITION OF SPECIES. 



1. Body large, moderately slender; vertex little nar- 



rower than one of the eyes; dorsum between the 

 shoulders little elevated; eyes rather small. 



Iiesperus, Morse. 



2. Vertex about half as wide as one of the eyes or a little 



more; body slender. parvivcrticis, var. n. 



3. Body smaller, verte.x in the male little less than half 



the width of one of the eyes; facial costa narrowly 

 compressed. aztccus (Sauss.) Bol. 



4. Posterior angle of lateral lobes obtuse, widely rounded 



