372 Dr. G. A. K. Marshall on new 



closely contiguous, subcircular and larger than those on the 

 pronotum. Legs rather stout ; all the tibiae finely denti- 

 culate internally and with a well-marked apical nmcro, that 

 on the middle pair being longer than the others ; the hind 

 corbels bare, narrowly enclosed, the upper edge distinctly 

 angulate at its base. Sternum with the front coxse very 

 close to the gular margin. 



The S narrower than the $ , the prothorax slightly less 

 transverse, the legs (especially the femora) distinctly stouter, 

 and the last ventral segment more broadly rounded behind, 

 and with a small median impression at the apex. 



Length 3-4 mm., breadth l'25-2 mm. 



S. .Rhodesia : Salisbury (G. A. K. M.). 



Described from 15 # $ and 8 ? ? . 



Closely allied to P. (Strophosomus) setifer, Fhs., in which 

 the prothorax is much less strongly rounded at the sides, 

 the base and apex are truncate, and the lateral stripe is grey 

 and not dark brown, while the legs are more slender. 



Protostrophus terrenas, sp. n. 



$ ? . Colour black, densely clothed with contiguous 

 subcircular scales, which are usually sandy-brown, with 

 indistinct mottling of darker brown, especially towards the 

 sides and apex of the elytra ; the pronotum with two very 

 faint darker stripes and a more distinct one on the side of 

 the prosternum. Sometimes the upper surface is almost 

 uniformly grey. 



Head separated from the rostrum hy a very deep bisinnate 

 furrow ; the forehead almost flat, with a broad and deep 

 median furrow extending to behind the eyes, and set with 

 subrecumbeut flattened setae ; the eyes very prominent and 

 strongly produced backwards, deepest distinctly behind the 

 middle, the orbits fairly broad ami very slightly projecting 

 on the posterior edge ; the gular area densely clothed with 

 broad scales. Rostrum evidently shorter than its basal 

 width, the sides straight and quite vertical, the upper sur- 

 face entirely flat, except for an indistinct scale-covered 

 median costa; the mandibles sparsely covered with small 

 round scales; the gense only shallowly impressed. Antenna 

 setose ; the scape slender and abruptly clavate ; the f unicle 

 with joint 1 half as long again as 2, the remainder about as 

 long as broad. Prothorax much broader than long (5 : 3), 

 broadest a little behind the middle ; the sides strongly 

 rounded, emarginate behind the eyes and constricted at the 



