Coleopterous Sub-Family ByrsopincB {Gurculionidce). 79 



gently rounded in the basal half, sinuate anteriorly and dilated 

 again at the apex ; upper surface with three very deep anterior 

 foveae, the centre one narrower than the others, the basal and 

 lateral areas deeply and rugosely punctured, but on the disk the 

 unevenness is partially concealed by an earthy indumentum ; the 

 anterior margin is distinctly elevated, being almost on a level with 

 the convex posterior portion. Elytra oblong, shoulders prominent 

 owing to a large projecting tubercle at the base of intervals, sides 

 slightly rounded, broadest at middle, apical declivity abruptly retuse ; 

 punctato-sulcate, the sulci usually regular, with the exception of 4 

 and 5, but in one example the lateral sulci are ill-defined and the 

 punctures subreticulate ; intervals 4, 6 and the apical half of 2 

 more elevated and bearing low rounded tubercles, those at the 

 summit of the declivity being evidently larger than the others, 

 interval 3 with only a short basal carina, 5 with a large humeral 

 tubercle. Legs with dense brown scaling and sparsely setose, the 

 femora being almost devoid of setae ; tarsi comparatively short and 

 much less setose than usual, posterior pair with joint 1 longer than 

 2, the latter longer than broad. 



Namaqualand : O'okiep {L. P&ringuey). 



Type in the South African Museum. 



This species has quite a distinctive facies and may be recognised 

 by the following combination of characters : the smooth rostrum ; 

 the elongate thorax, with its elevated anterior margin and dilated 

 ocular lobes ; the oblong elytra, with their low tubercles, prominent 

 shoulders and very abrupt declivity. 



Described from three examples, the other two being in the British 

 and Stockholm Museums respectively. 



18. Byesops hexina, sp. nov. 

 Plate VI., fig. 3. 



Long. 7i-9f ; lat. 3f-4i mm. 



Colour black, with uniform dark-brown scaling and with short 

 erect setae which are more conspicuous on the head and thorax. 



Head uneven, with two rather indistinct oblique carinae uniting 

 with the ocular ridges. Bostrum plane above, with the dorsal 

 margins slightly raised. Prothorax dorsally longer than broad, 

 sides rounded, broadest about middle, narrowing anteriorly and 

 then dilated again at the ocular lobes ; upper surface convex 

 posteriorly, dispersely punctured (the punctures almost hidden by 

 the earthy indumentum) and with a shallow central furrow, which 

 is bounded by two low carinae and interrupted in the middle ; the 



