[Temi'ouaky.J 



1900.] Catalogue of the Coleoptem of South Africa. 561 



shiillow cicatrieose punctures nearly coalcscint;- ; propygidiuni 

 covered with very closely set, fine, very short, somewhat irregular 

 folds on tlie whole of the median part ; pygidium finely plicate 

 transversely and finely scabrose at apex in the female ; undei- side 

 almost glabrous except for a short pubescence on the sides of the 

 metasternuni ; abdominal segments deeply and closely punctate, 

 pi'ocess of prosternum strongly carinate and with the apical part 

 sloping, deeply impressed, and glabrous ; anterior tibicC very sharply 

 tri-dentate ; joints of anterior tarsi a little thickened, inner claw 

 contorted, broad, bifid at tip in the male ; in the female these joints 

 are not very slender, and the two claws are equal. 



Length 31-38 mm. ; width 15-18 nnn. 



Hah. Cape Colony (Cape Town, Knysna, Port St. John), Natal 

 (Durban). 



Ehizoplatys bituberculatus, Klug, 

 Plate Xl. . fig.'^3 



Monatsb. Berl. Acad., 1855, p. 657; Peters' Reis., 1862, p. 253. 



General appearance of the preceding species, but a little narrower, 

 and with the elytra more finely punctured and the striae nearly 

 invisible ; head as in B. trituhcrculatus ; the mandibles are sharply 

 aculeate in the outer angle of the anterior margin and very sharply 

 dentate in the inner, the spine-like tooth being recurved ; the 

 cephalic horn is sharper and longer ; in the male the prothorax 

 is similarly sculptured, but is a little more ampliate laterally at 

 middle, and it is deeply and broadly excavated from the anterior 

 margin to two-thirds of the length, with the anterior part of the 

 walls of the excavation produced into two conical, very conspicuous 

 tubercles ; the posterior part of the disk is slightly impressed in the 

 middle ; the female much resembles that of B. trituberculatus, but 

 the prothorax is much more deeply and broadly punctured and is 

 even scrobiculate laterally, and there is a distinct impression, callose 

 on each side, in the anterior part of the prothorax ; under side as in 

 ]!. trituberculatus, but the four outer spines on the intermediate 

 and posterior tibiae are not connate at base. 



Length 33-35 mm. ; width 15-16 mm. 



Hah. Southern Ehodesia (Victoria Falls), Mozambique (Louren90- 

 T^Iarquez). 



RHIZOPLATODES, n. gen. 



Closely allied to Bhizoplatys, but with the shape of the mentum 

 and maxillae different. Mentum diagonally ampliate laterally from 



