1900.J Cataloijiic of (he Colcoptera of South Africa. 295 



two apical outer teetli with a smaller tooth between them ; apical 

 spur of anterior tibia' thick and strongly bifid at tip in the male, 

 more slender, straight and sharp in the female. 



Length (horns excluded) 6-8 mm. ; width 4-5^ mm. 



In the male the clypeal horns vary in length, and they are propor- 

 tionately more laminate according to the greater length, but when 

 the horns are short they are carinate longitudinally in the middle as 

 in the female ; in the latter sex their length does not vary much. 



Hab. Natal (Upper Districts, Durban), Transvaal (Lydenburg). 



COI'TOKHINA IMITATIVA, 11. SpeC. 



Black, opaque ; very closely allied to the preceding species, but 

 larger; head similarly impressed and also with a small median 

 tubercle, clypeus produced into two long, triangular, recurved teeth 

 nearly as long as the head, and sub-carinate longitudinally at middle ; 

 prothorax similarly shaped, equally closely punctate, and having in 

 the centre a longitudinal smooth line, very faint in the anterior part, 

 and grooved near the base ; elytra moderately convex, very little 

 sinuate laterally above the metasternal epimera, intervals geminato- 

 striate, striae distinctly but remotely punctate, intervals plane, closely 

 punctate, and having each a series of non-elongate, moderately 

 closely set tubercles somewhat evanescent on the second, third, and 

 fourth intervals, and entirely wanting in the first, these tubercles, 

 however, coalesce at the base of the eighth interval, and form there 

 a moderately long, distinct carina ; the supra-marginal and median 

 carina, the pygidium, under side and legs are as in C. armata. 



Female unknown. 



Length 9;^ mm. ; width 7 mm. 



Hah. Transvaal (Lydenburg). 



Gen. DELOPLEURUS, Erichs., 



Nat. Ins. iii., 1848, p. 761. 



Mentum concave at base, deeply sinuate laterally and strongly 

 attenuate towards the tip which is incised ; labial palpi short, first 

 and second joints of nearly equal size, second joint sub-conical, apical 

 one as broad as the second at base, sub-carinate, more rounded out- 

 wardly than inwardly ; lobes of the ligula membranaceous, narrowly 

 fringed with hairs inwardly ; maxillge short, strong, apical joint of 

 maxillary palpi fusiform, as long as the two preceding ; antennae of 



