the Tetriginie in the Oxford University Museum. 425 



humeral angles substraight, lateral lobes posteriorly without elytral 

 or inferior sinuses. Elytra and wings wanting ; anterior and middle 

 femora slender, margins entire, the superior carinse not at all spined 

 at the apices. 



The type is Halniatattix cristinotus, herewith described : 



1. H. cristinotus, sp. nov. (Plate XXII, fig. 8.) 



Body somewhat incrassate, conspersed with light granulations, 

 coloured ferrugineous variegated with fuscous, the lateral margins 

 and underneath black ; vertex little wider than one of the eyes. 

 Pronotum having the acute apex in front advanced barely beyond 

 the frontal costa, the posterior process obtuse, acuminate toward the 

 apex ; lateral margins bicarinate ; median carina thinly compressed; 

 elevated, punctate translucent when held against the light. 



Entire length of body, female, 14'5 mm. ; pronotum 13 mm. 

 (posterior femora mutilated). 



One example from Rio de Janeiro (probably), Brazil, 

 collected and presented by J. W. Miers to the University 

 Museum, Oxford. 



Genus ScARiA, Bolivar. 



1. S. ferruginca, sp. nov. 



Body moderately crassate, ferruginous, not at all fasciated with 

 fuscous on sides or striate above ; head little compresso-elevated, the 

 base of eyes lower than the summit of middle of dorsum ; vertex 

 slightly tumid, somewhat smooth granulate, roundly deflexed in 

 front, bearing indistinct small oblique carinulate lobes on each side 

 next to the eyes ; frontal costa rounded, little protuberant between 

 the antenna?, narrowly sulcate ; eyes large and globose. Pronotum 

 anteriorly produced in a rather valid uncinate spine, the base little 

 oblique ; median carina percurrent, nearly horizontal, somewhat 

 compressed and incrassate forward, little ascendant near and toward 

 the front, but posteriorly toward the apex of process indistinct ; 

 lateral carina) percurrent forward on the shoulders and distinctly 

 expressed, process extended beyond the posterior femoral apices. 

 Elytra having each of the bases ferruginous but posteriorly black and 

 bearing a distinct pale pra?apical macula ; wings fully explicate 

 extended beyond the apex of pronotal process. Middle femora 

 armed with an apical spine ; anterior femora not armed at the 

 apices; posterior femora having the inferior part fuscous but 

 obscured by a covering of pale granulations ; inside of hind femora 



