400 



Bates' unique type of politicollis, whereas the other is new ; we 

 nave no other specimen with an excised clypeus like that." 



The following comparison will differentiate the two 

 species : — 



C. clypeatus. C. politicollis. 



Clypeus circularly excised in Produced in middle. 



middle. 

 Foliate margins of prothorax Very narrow. 



wider. 

 Posterior angles distinctly Obtuse, not dentate. 



dentate and acute. 

 Antenna? stouter, apical Slenderer, apical joints not 



joints rounder. rounded. 



Under a Zeiss binocular microscope the prothorax of both 

 species is seen to be punctate, but the punctures are larger 

 and more distinct in clypeatus. 



A re-examination of Otrintus fergusoni, Cart., compels 

 me to confess that there is no specific distinction between it 

 and C. politicollis, Bates, the very narrow foliate margins 

 "being quite obsolete and the enlarged apex of tibiae in the 

 male type is, I consider, individual variation. The name 0. 

 fergusoni must therefore be sunk. 



Cardiothoeax undulatus, n. sp. 



Opaque brownish-black above, legs and abdomen nitid 

 rblack, antennae and tarsi piceous. 



Head smooth, with front of epistoma evenly curved ; 

 frontal impression circular ; antennae stout, submonilif orm, 

 joint 3 little longer than 4, 11 pointed at apex. Prothorax, 

 4x5 fvix.J mm., arcuate-emarginate at apex; anterior angles 

 prominent and acutely rounded ; sides strongly and arcuately 

 -widening to middle, then more gradually converging and 

 sharply sinuate at hind angles, these acute, dentate, deflexed 

 ;and outwardly directed ; base coarctate ; disc impunctate with 

 four equal-spaced foveae, two on each side of the middle line 

 (sometimes vaguely connected by a longitudinal depression) ; 

 medial line clearly impressed throughout ; foliate margins wide 

 on apical half, narrowed at base, obliquely raised, and separ- 

 ated from disc by a nearly straight shallow groove ; extreme 

 border narrowly raised on sides and apex, strongly raised at 

 base. Scutellum triangular depressed. Elytra ovate, wider 

 than prothorax at base, shoulders raised and prominent ; with 

 about eight undulate ridges, irregularly connected, this reticu- 

 lation especially marked towards the sides, with a series of 

 large foveae closely placed on the vertical sides between the 

 lateral (and most prominent) of the ridges and the epipleural 



