98 Transactions Sotitli African PhUosopliical Socictij. [vol. xii. 



triangularly ampliated at apex ; basal joints of tarsi triangular, 

 gradually decreasing in size ; claws very slender ; valves of penis 

 .asymmetrical. 



Aphengcecus clypeatus, n. spec, 

 Plate XXXIX., fig. 22 ; Plate XXXVIII., fig 33. 



Black, opaque or nearly so, palpi and antennae rufous, club of the 

 latter flavescent ; clypeus armed with four long teeth slightly re- 

 curved, genae distinctly serrate and with the anterior angle produced 

 laterally in a triangular tooth ; head very deeply and closely punctu- 

 late, the suture of the genae is nearly obliterated, and there is hardly 

 any trace of a frontal carina ; prothorax simple convex, not much 

 rounded laterally at middle, very little arcuate at base, faintly 

 marginate laterally and along the base, covered with deep, elongate, 

 very closely set punctures, and sprinkled with short, thick, sub- 

 flavescent setae ; elytra very convex, not emarginate laterally, outer 

 margin carinate, suture not raised, striae narrow, impunctate, 

 geminate ; intervals plane, extremely finely plicate longitudinally, 

 and having a very faint median series of very small tubercles, and a 

 double row of thick, short setae similar to those on the prothorax ; 

 pygidium punctate ; mesosternum and metasternum closely and 

 deeply punctate all over. 



Length 4|-5 mm. ; width 3^-3 1 mm. 



The habits of this curious species are unknown ; I captured some 

 numbers of it in trap-trenches where they had fallen during the 

 night. I never found it anywhere else, and I suspect it to live in 

 the dung-heaps of white ants. 



Hah. Cape Colony (Stellenbosch). 



Gen. SISYPHUS, Latr., 



Gen. Crust, et Ins., ii., 1807, p. 79. 



Mentum nearly straight laterally but a little attenuate in front, 

 very deeply emarginate in the centre ; first joint of labial palpi 

 broad, triangular, second joint not quite so broad, but also triangular, 

 apical one half the width of the preceding one, inserted in the centre 

 of it, and somewhat oblong; maxillae moderately thick, upper external 

 lolie vei'y long and sub-falcate, internal one very short, hardly 

 distinct ; first joint of maxillary palpi very short, slender, and 

 curved, second and third conical, apical joint longer than the two 

 preceding, fusiform but slightly more swollen inwardly than out- 

 wardly ; antennae eight-jointed, second l^asal joint quite round, third 



