36 TETTIGID^ OF NORTH AMERICA 



16. Facial costa widely forked. Pronotum presenting a 



short supernumerary carina midway between the 

 humeral angles and the median carina. Distri- 

 bution Mexico and southward. 



Gen. Oclictotcttix, Morse. 

 9. 9. Vertex not advanced beyond the eyes. Median 

 carina of pronotum generally scarcely elevated. 



17. Body usually broad between the shoulders. Vertex 



narrower or as wide or little wider than one of the 

 eyes, little narrowed anteriorly. Second femoral 

 cariUcTe more or less undulate, or sinuate, or sinu- 

 ato-lobate, very rarely entire. 



Gen. Paratcttix, Bol. 



18. Dorsum of pronotum transversely convexo-tectiform 



between the shoulders. Femora expanded, mar- 

 ginal carinae strongly carinate-clypeate. Distri- 

 bution Mexico and southward. 



Clypcotcttix, gen. n. 



19. Body narrow, strongly prolongate, apical process 



attenuate; occiput naked behind the eyes. F""irst 

 and third articles of posterior tarsi subequal or 

 equal in length. Distribution Central America 

 southward. Gen. Allotettix, Hanc. 



20. Vertex strongly narrowed in front, the front border 



about one-half to nearly the breadth of one of the 

 eyes. Body usually slender. Frontal costa nar- 

 row subparallel. Distribution western and south- 

 western United States, Mexico, Central America. 



Gen. Tclinatcttix, Hanc. 

 I. I. Anterior femora above distinctly sulcate. Pronotum 

 in front produced more or less above the head, the 

 antero-dorsal margin hooked, or cuspidate, or 

 obtuse-angulate, or rounded. Antenna; with six- 

 teen to twenty-two articles. 



IV. subfamily, BatkachidiNjE. 



21. Body strongly tumid. Dorsum of pronotum con- 



vex, lightly punctate, lateral carina,- in front of 

 the shoulders wanting. Distribution southern 

 United States. Gen. Paxilla, Bol. 



