\'ol. Xxix] EXTOMOLOGICAI. XEWS 345 



beyond the tegmina about the length of the latter, but normally covered 

 by the hind process. 



Fore femoral margins above entire, below subundulate ; middle fem- 

 ora little compressed, margins minutely crenulate, very indistinctly 

 undulate above and below ; hind femora robust, the superior marginal 

 carina crenulate, terminating in a pregenital tooth but not sharp ; and 

 an inconspicuous genicular eminence ; the outer pagina rugose granu- 

 late, bearing on the outer face above a series of large oblique granu- 

 late tubercles ; first joint of the posterior tarsi very much longer than 

 the second and third combined. 



Length of body, 9 mm. ; pronotum, 7 mm. ; hind femora, 5 mm. 



Habitat. Brownsville, Texas. (Townsend). 

 Type: 2 Brownsville, Texas, in my collection. 



Cavotettix apterus sp. nov. or race (Plate XX, figs. 2-2c). 



2 . — Description of type. Resembling Cavotettix proavus Rehn & 

 Hebard in the form of the vertex and wide frontal scutellum ; size 

 slightly smaller, apterous, the hind femora more elongate ; body above 

 granulate, slightly rugose, sparingly sprinkled with coarser granu- 

 lations. 



Pronotum having the dorsum compressed, angulate produced forward 

 over the head to the middle of the eyes ; the median carina of dorsum 

 cristate, quite highly arcuate longitudinally, highest between the shoul- 

 ders, and bearing small translucent punctulations when viewed against 

 the light, such as occurs in Xomotcttix comprcssus Morse; the dorsal 

 prozonal carinae behind the anterior border nearly parallel, yet sub- 

 convergent backward ; surface between the shoulders granulate, with 

 no indications of elevated ridges as in proavus; lateral lobes of the 

 pronotum with but one inferior sinus, the usual superior tegminal sinus 

 entirely obliterated, and completely obsolete (in proavus represented 

 by a notch, in nulUsmus by a slightly wider shallow excavation) ; the 

 scapular areas between the lateral carina and inferior margin at the 

 sides of the pronotum substraight, very broad forward, wider than in 

 ntiUisiniis, the inferior margin near the sinus dilated opposite the artic- 

 ulation of the hind femora, from this point backward the margins of 

 the scapular area gradually contracted to near the apex of pronotum ; 

 the blunt apex of the latter reaching backward beyond the middle of 

 the hind knees nearly to their apices. 



Tegmina and wings absent, or entirely hidden from view ; a very 

 minute vestigial tegmen, almost hidden, appears on one side only in 

 the male allotype. 



Hind femora much less robust and more elongate than in proavus, 

 the greatest diameter forward contained over two and one-half times 

 in the length; first joint of hind tarsi nearly twice the length of the 

 second and third combined. 



