104 Transactions of the South African Philosoj)hical Society. 



constricted near apex, but scarcely narrowed towards the base; 

 upper surface almost plane, with a deep central furrow and a 

 shallower furrow on each side of it, rugose in the middle, the lateral 

 margins smooth, almost impunctate, and with a distinct subdorsal 

 tubercle about middle. Elytra oblong, the basal margin sinuate and 

 not broader than the base of the prothorax, the shoulders sloping 

 and obtusely angulate,the sides subparallel from there to the declivity, 

 which is abrupt and subangulate dorsally ; upper surface almost 

 plane as far as the 4th interval, then sloping sharply to the 6th, 

 with irregular rows of large deep punctures, intervals 2 and 6 with 

 rows of large bluntly conical tubercles continued to the apex, interval 

 4 with a similar row but ceasing at the declivity, where it unites 

 with interval 2 to form a large callus, intervals 3 and 5 each with a 

 short tuberculate costa at base, the latter bearing also a row of 

 widely separated small tubercles. Legs stout, black, variegated with 

 dense grey scaling and sparse black setae ; tibiae slightly scabrous, 

 the external angle scarcely produced, the internal angle with a short 

 straight spur ; tarsi rather short and broad. 



Cape Colony : Beaufort West. 



Type in the South African Museum. 



I have seen only the unique type. 



16. Synthocus mashunus, sp. nov. 



Long. 7i-9f ; lat. 4}-5| mm. 



Colour light or dark fulvous ; prothorax with a broad central 

 black stripe ; elytra with a large dorsal black or dark-browm patch 

 reaching from the base to beyond middle and extending laterally as 

 far as the 5th interval, and another dark patch on the declivity but 

 not reaching the apex ; across the top of the declivity the scaling is 

 often whitish. 



Prothorax a little broader than long, the sides distinctly angulated 

 about middle, strongly constricted near apex and narrowed towards 

 the base ; upper surface almost plain, coarsely and deeply punctured 

 in the middle, the sides smooth and almost impunctate, with a 

 single deep central furrow, transversely impressed near apex and 

 with a fovea on each side of the furrow. Elytra just as described 

 in plagosus, Per., except that the punctures are more regular, the 

 tubercles are smaller and much more sharply conical, an-d the small 

 tubercles on interval 5 are sometimes absent. Legs more slender, 

 with dense grey scaling variegated with darker spots and with sparse 

 dark setae ; tibiae not scabrous, the external angle of anterior pair 

 produced, the inner angle with a long curved spur ; tarsi rather 

 short and less stout. 



