HANCOCK 53 



or granulate, the front of the face is little oblique, and the 

 vertex in most of the species is limited anteriorly by two more 

 or less oblique carinae, which are directed backward along 

 the internal border of the eyes; these carinae sometimes 

 depressed forward and concave, and then the two longitudinal 

 furrows of the vertex are open anteriorly. The frontal facial 

 costa bifurcates above in front, and its two branches are pro- 

 longed forward almost always diverging until they meet the 

 median ocellus; the antennae are composed of twelve to four- 

 teen segments, are usually rather short and inserted a little in 

 front of the anterior inferior border of the eyes; the palpi are 

 entire, cylindrical, or a little flattened at the extremity. The 

 pronotum is truncate in front or is produced in an angle over 

 the head as in Nomotettix; the dorsum is usually flat, although 

 strongly carinate or cristate in some species; the humeral 

 angles obtuse; the lateral lobes directed downward, and the 

 lobe formed by the posterior angle projecting but very rarely, 

 and then rounded and not angulate. The elytra are always in 

 the form of a scale, oblong and punctate, and the wings are 

 well developed in most of the species ; the sternomentum is 

 largely reflexed about the mouth. The legs are variable ; the 

 anterior femora carinate above, and not at all sulcate; some- 

 times the middle femora possess large clypeate dilatations 

 {C/}'pcotctti.v), their carinae often undulate (Paratcttix) or 

 entire, the jjosterior tibial carin.-e appreciably parallel, being 

 but little or not at all widened toward the extremity, their 

 carinas having numerous spines, the terminal spurs rather long 

 and inequal, the posterior tarsi slender and their first seg- 

 ment longer than the third. 



GEN. NOMOTETTIX, morse. 



Body small, a little compressed, usually brachypterous, 

 granulate rugose. Vertex wider than one of the eyes, middle 

 carinate, in profile angulate produced in front of the eyes; 

 crown usually mammillate posteriorly between the eyes. Fron- 

 tal costa more or less sinuate, viewed in front the rami approxi- 

 mate and parallel; antenna; short, filiform, with thirteen or 



