the TetriginiB in the Oxford University 3fuseum. 417 



reaching backward to the knees of the hind femora ; median carina 

 strongly compresso-cristate, arcuate forward before the humeral 

 angles, sloping substraight posteriorly; posterior angles of lateral 

 lobes obtuse. Elytra small, apical margin rounded ; wings shorter 

 than the process. Femoral margins entire ; middle femora in male 

 somewhat ampliate ; first articles of posterior tarsi having the first 

 two pulvilli acute, the third pulvilli elongate and longer than the 

 third and flat below. 



Entire length of body, male (to end of hind femora), 8'5 mm. ; 

 pronotum 6"5 mm. ; posterior femora 4-5 mm. 



One male example from N. America; W. W. Saunders' 

 collection, presented by Mrs. F. W. Hope to the Uni- 

 versity Museum, Oxford. 



Genus Prototettix, Bolivar. 

 1. P. africanus, sp. nov. 



Body crassate, scabrous,* strongly tuberculate, colour ferruginous 

 variegated with fuscous, anterior and middle tibiae pale annulate. 

 Head not all exserted, face tumid below the eyes ; vertex narrowed 

 forward, wider than one of the eyes, fossulate on each side and bear- 

 ing small supraocular lobes and rounded frontal carinulse, middle 

 indistinctly carinate ; frontal costa narrowly compressed, convex 

 between the antennae, barely sinuate between the eyes, face below 

 sinuate ; antennae inserted between the lower forward part of the 

 eyes. Pronotum incrassate, convex between the shoulders, and 

 planate behind ; dorsum tuberculose- scabrous ; humeral angles 

 widely obtuse ; posterior process cuneate extended backward nearly 

 to the knees of the hind femora ; median carina strongly irregularly 

 sinuate-interrupted, compresso-elevated forward between the sulci ; 

 prozonal carinae obscure, tuberculate ; lateral lobes having the in- 

 ferior margin little reflected outwards, the posterior angles narrowly 

 subobliquely excised. Elytra small, narrow, the apices subacutely 

 rounded ; wings abbreviated. Anterior femora elongate, the inferior 

 margins indistinctly bidenticulate ; middle femoral margins minutely 

 tridenticulate; posterior femora elongate, margins minutely undulate- 

 dentate, external paginae above strongly longitudinally nodulose, the 

 oblique rugae externally strongly expressed ; hind tibiae strongly 

 incrassate, the external carinae expanded and distinctly armed with 

 spines ; the first articles of the posterior tarsi much longer than the 

 third, the first two pulvilli angulate acute, the third longer than the 

 second, flattened below. 



Entire length of body, female, 13-5 mm. ; pronotum 11 mm. ; 

 posterior femora 7'8 mm. 



