the Tctriginm in the O-'ford Uriivcrsity Museum. 391 



One male example from Brazil, South America, collected 

 by Bates ; W. W. Saunders' collection, presented by Mrs. 

 F. W. Hope to the University Museum, Oxford. 



Section GLADONOT.-E, Bolivar. 



Genus Piezotettix, Bol. 



1. P. truncatas, sp. no v. 



Eesembling cultratus in having the mar;^in of the dorsal crest 

 entire, but differing in the arcuate profile and smaller stature. 



Body granulate, coloured ochreous, slightly obscure I'usco-iuarnior- 

 ate on legs and median carina. Vertex wide, tumid, and elevated 

 above the eyes, not at all transversely carinulate, but bearing a 

 small carinula next to the eyes ; frontal costa incrassate but in 

 profile scarcely at all produced between the antennse, the face 

 advanced before the eyes nearly equal to one-half the width of one 

 of the strongly conoidal eyes ; su2)erior ocelli placed much in 

 advance of and opposite the lower fourth of the eyes ; antennae 

 inserted barely below the anterior inferior margin of the eyes, 

 shorter than the vertical diameter of the head ; maxillary palpi 

 little dilated. Pronotum strongly tectiforni cristate, the dorsal 

 margin of crest entire, arcuate, but not highly arched, viewed in 

 front deltoidal ; the lateral surfaces forward at the sulci rugulose, 

 subvenose ; lateral carinas distinctly expressed ; anterior margin 

 in profile arcuate jn'oduced over and little beyond the head, 

 angulate, subobtuse at the apex, posteriorly more sloping and 

 abbreviated, the apex angularly truncate-incised, the process only 

 extended to about the distal third of the hind femora. Elytra and 

 wings wanting. Superior margins of anterior and middle femora 

 entire, the inferior margins undulate or the anterior barely subuni- 

 lobate, the mesothoracic subtrilobate ; the posterior femora moderately 

 inflated, antegenicular lobe somewhat conspicuous, the outer pagina 

 above lightly nodulose, and externally bearing oblique rugulte ; 

 hind tibige rather crassate, the margins armed with valid spines 

 about four on the inside, and five on the outside ; first articles of 

 the })Osterior tarsi elongate, more than twice the length of the 

 third, the three pulvilli subobtuse, gradually increasing in size from 

 first to last. 



Length of the entire body, female, 14"5 mm. ; pronotum ITS mm.; 

 posterior femora 8 mm. 



One example from Morty Island, collected by Wallace ; 

 W. W. Saunders' collection, presented by Mrs. F. W. Hope 

 to the University Museum, Oxford, 



