Bruner: Tropical American Tettigonoidea. 341 



b. Pectus or sternum moderately compressed, meso- and metasternum not 

 lobate, except in the genus Polyancislrus. Antenna; slender, their bases 

 not contiguous. Tegmina narrow, lying flat when at rest. 

 c. Body and tegmina testaceous or olivaceo-testaceous; the latter often 

 long and narrow with their margins parallel, their texture leathery, the 

 veins prominent, the anterior ulnar vein running out near the apex of 

 the elytra. Middle coxee not tuberculate at the base. 

 d. Pronotum not produced posteriorly, without lateral carinae. Basal 

 antennal joints obtuse at the apex, except in some species of the 

 genus Bliastes. (Anterior femora with their external genicular 

 lobes rounded.) 

 e. Anterior tibiae not one-half longer than the pronotum (except in 

 the species Nannotettix longipes), above rounded or flattened, 

 not sulcate, the conchs or auditory apparatus closed. 

 /. Mandibles abnormal, very large, at the base provided with a 

 long tooth. Fastigium of the vertex compressed, sulcate, 

 at the base not tuberculate. 

 g. Mandibles very large, not toothed. 



Gnalhoclela Hagenbach. 

 gg. Mandibles provided at the base with a long tooth. (Fas- 

 * tigium of the front produced into an acute process.) 



Dicranostomus Dohrn. 

 //. Mandibles normal. Fastigium of the vertex tuberculate on 

 the sides. 

 g. Pronotum granulose. 



h. Anterior femora with their genicular lobes spined 

 internally. 

 i. Tegmina and wings perfectly formed, sometimes 

 shorter than the abdomen. 

 j. Middle tibiae smooth above, without spines. 

 Hind tibiae above short-spined. 



k. Anterior tibiae normal Bliastes Stal. 



kk. Anterior tibiae with the conchs widely open 

 and below the conchs lobate on the outer 



margin Parabliastes Brunner.' 



jj. Middle tibiae above two-spined. Posterior 

 tibiae armed above with strong erect spines. 



Jimasia Brunner. 

 a. Tegmina and wings greatly abbreviated. 



j. Tegmina in the female fenestrate. All of the 



femora spined above. . .Panoploscelis Scudder. 



jj. Tegmina of the females normal. Femora above 



spineless Stenotettix Stal. 



3 The genera Nastonotus Bclivar (Ann. Soc. Ent. France (6) x, p. 143 (1890)) and 

 Clisis Walker (Cat. Derm. Salt. B. M., V, Suppl., p. 47 (1871) belong in this 

 vicinity. 



