1902.] Catalogue of the Coleoptcra of South Africa. 823 



Platychelus nitbns, Blanch., 

 Ibid., p. 61. 



" Allied to P. hoploides, but smaller and more depressed ; black, 

 shining, clypeus little reflexed ; prothorax convex, shining, hairy, 

 hairs black ; elytra depressed, broad, uni-costate, granulated, black, 

 with the outer part rufous except the humeral margin ; legs black, 

 anterior tibias tri-dentate, claws of the hind legs unequal, inner one 

 slender, outer one broad, bifid ; abdomen entirely black, and with 

 ashy-grey hairs inwardly. 



Length 5-6 mm." 



This species resembles P. litigosus to such an extent that at the 

 time of my examination I noted the two as being identical, but 

 P. litigosus has the anterior tibiae distinctly tri-dentate, whereas in 

 his description of P. nitcns Blanchard says that they are bi-dentate. 

 I did not at the time notice this difference." 



COEGA, n. gen. 



Mentum elongate, oblong but attenuate laterally towards the apex, 

 moderately constricted at the point of insertion of the antenngp, and 

 not ampliated thence, the apical part is nearly straight, and the 

 angles are not penicillate ; maxillae long, inner lobe obliterated, upper 

 lobe not penicillate, and produced into three sharp, hooked teeth 

 arranged transversely at the tip ; apical joint of maxillary palpi long, 

 strongly fusiform and sub-acuminate ; clypeus short, straight at the 

 apex, but with the angles rounded ; antennae nine-jointed, club as 

 long as all the other joints taken together, sixth joint lamellate but 

 short ; prothorax a little attenuate laterally in front, sinuate behind 

 and with the basal angle sharp ; scutellum small, ogival ; elytra 

 sinuate laterally and moderately attenuate from there towards the 

 apex ; pygidium slanting forward in the male, abdomen compressed 

 laterally ; hind legs normally robust, anterior tibiis obliquely bi- 

 dentate, claws double, unequal, inner one of the anterior legs short, 

 robust and cleft, the weaker one of the intermediate one is cleft ; 

 apical spur of hind tibiae long. 



The characteristic difference between this genus and Platijclielus 

 is the great length of the antennal club. 



CoEGA ILLOTA, n. spec. 

 Male : Black, opaque, club of antennae and tarsi piceous red ; 

 elytra with occasionally a broad, lateral reddish band ; head very 

 scabrose, clothed with a flavescent pubescence ; prothorax closely 



