Tetriginae in the Oxford University Museum. 357 



angles nearly straight ; posterior angles of the lateral lobes turned 

 down obtuse, yet obliquely excised. Elytra small and widened 

 posteriorly, apex widely rounded ; wings perfectly explicate. 

 Anterior femora strongly elongate, superior carinae basally com- 

 pressed, acute and minutely serrulate ; middle femoral carinae above 

 compressed, terminating in an apical denticle ; posterior femoral 

 carinae above terminating in a denticle, below longitudinally 

 curvats ; genicular denticle produced ; posterior tibiae narrow, the 

 canthi minutely serrulate and bearing many small feeble denticles ; 

 first and third articles of posterior tarsi equal in length, the third 

 joint distinctly clavate. 



This genus resembles Rhynchotettix, Hancock,* but 

 differs in the cuspidate apex of the produced cephalic 

 process, in the absence of a median carina on vertex, in 

 the prominent globose eyes, in the presence of elytra and 

 wings, in the absence of a spine arming the posterior 

 angles of the lateral lobes of pronotum, in the equal 

 length of the first and third tarsal articles, and in the 

 distinctly clavate form of the third joint of the posterior 

 tarsi. 



R. clavipes, sp. nov. 



Body smooth granulate ; eyes prominent and strongly globose ; 

 face strongly oblique ; vertex strongly obliquely produced in an 

 elongate cephalic process, in profile extended beyond the eyes more 

 than the greatest length of one of them, in width equal to nearly 

 two-thirds the height of one of the eyes, and terminating in a 

 deflexed acute spine; process ventrally compressed, the middle 

 forming the facial median carina above, basally sinuate between the 

 lower part of the eyes; the process extension viewed from above 

 narrower than the vertex backward, longitudinally sulcate, sides 

 parallel entire but cuspidate at the apex; vertex between the eyes 

 little narrowed forward, broadly transversely fossulate, nearly equal 

 in width to one of the eyes, middle not carinate; superior paired 

 ocelli placed between the lower third of the eyes ; median ocellus 

 situated far below the eyes, the distance from the median ocellus 

 to the eyes much greater than the distance between the eyes; frontal 

 costa narrowly sulcate, forked between the paired ocelli above, 

 downwards compressed scarcely elevated; antennae long and 

 slender, longer than the head, consisting of fourteen articles, the 

 first basal articles crassate, second smaller globose, the next four 



* Trans. Entum. Soj. London, p. 228, 1907. 



