102 Annals of the Carnegie Museum. 



cate, but the margin at the middle excavate, posteriorly subulate, dis- 

 tinctly passing the femoral apices, the apex of process little upturned, 

 dorsum between the shoulders strongly compresso-elevated ; the median 

 carina strongly compressed forwards and formed into an ele\'ated serrato- 

 angulate crest, very thin and translucent when held against the light; the 

 anterior margin of the crest situated before the shoulders, concave, and 

 provided with tubercles, the posterior margin convex, serrato-crenulate, 

 and extending backward to the anterior fifth of the hind femora; highest 

 point of crest situated between the shoulders, the apex acute, and little 

 produced forward; median carina posteriorly thin and inconspicuous, the 

 dorsal surface strongly rugoso-subreticulate; humeral angles obtuse, inter- 

 rupted anteriorly; supraelytral margin narrow, little convex; humero- 

 apical carinje very thin, enclosing a wide longitudinal scapular area above 

 the supraelytral margin; anterior carina? just behind the front border 

 obsolete, and instead presenting minute tubercles; posterior angles of the 

 lateral lobes little laminate outward, dentate produced, behind oblique 

 and serrate; elytral sinus shallow. Elytra oval, punctate; wings fully 

 explicate, barely longer than the pronotal process. Femora compressed, 

 anterior femoral margins above undulate, inferior margins barely undulate; 

 middle femoral margins sinuato-lobate; posterior femora stout, inflated, 

 external pagina provided with many tumose elevations, the superior mar- 

 gin strongly arcuate, minutely serrulate and furnished with about four 

 tubercles, the inferior margins straight, provided with two minute den- 

 ticles, the ante-genicular denticle above large and elevated subobtuse; 

 the genicular denticle strongly distinct and serrate but not produced 

 backward; lateral margins of posterior tibiae straight, scarcely at all 

 expanded at the apices, regularly dentate, the denticles being very small, 

 the canthi between the denticles minutely serrulate; first article of the 

 posterior tarsi having the first and second pulvilli small and of equal 

 length, the third much longer and subobsolete or flat below." (The 

 third tarsal article as well as the antennae of the "type" missing.) 



Total length, cf , 12.3 mm ; of pronotum, 11. 5 mm.; of posterior femora, 

 5.5 mm. 



Habitat. — Demarara, British Guiana, collected by R. J. Crew. The 

 type is in the collection of Professor L. Bruner. 



Gladiotettix hancocki sp. nov. 

 Rather closely related to the preceding species but differing from it in 

 ts somewhat larger size and in having the median carina even more 



