2 Dr. G. A. K. Maisliall on African 



species with "wliicli I am iniacquainted. Tliey probably do 

 not belong to that genus as now understood, and appear 

 to be related to tlie species here described under Leurops, 

 from which they difJcr in the complete absence of tlie 

 median stria on tlie forehead — an unusual character in this 

 group. The JNIadagascar forms have not been included, as 

 they are now being revised by M. A. Hustache. 



In discriminating the genera use has been made of 

 characters drawn from theepistome, mandiljles, and mentum, 

 which have not been previously employed in this group, but 

 which seem likely to be useful for separating the principal 

 subdivisions. 



Unless otherwise stated, the types of all the new species 

 are in the British Museum. 



Key to the Genera. 



1 (24). Epistouie well defined, bounded by 



a distirct carina or obtuse ridge ; 

 cutting-edge of mandibles with a 

 median projection or tooth. 



2 (17). Mentum entirely devoid of setaj *. 



3 ( 0). Tarsi narrow, setose beneath. 



4 ( 5). Front tibiiB produced externally into a 



long ])rocess ; corbels of hind tibias 



enclosed ; mandibles squamose .... Mimaidus, Schh. 



5 ( 4). Front tibia? not produced externally ; 



hind corbels open ; mandibles not 



squamose Mimaulodes, gen. no v. 



6(3). Tarsi broad, spongy beneath ; corbels 

 of hind tibias open, bare. 



7 (10). First ventral segment with the hind 



margin rounded ; lo\Yer .surface of 

 rostrum more or less concave, the 

 normal longitudinal impressions en- 

 tirely or nearly obliterated. 



8 ( 9). Elytra without any humeral promi- 



nence ; head separated from rostrum 

 by a fine stria which curves strongly 

 forwards in the middle ; rostrum 

 strongly narrowed in front ; funicle 

 not squamose Pomp/ms, gen. nov. 



9 ( 8). Elytra with a conspicuous humeral 



prominence; head separated from 

 rostrum by a deep, gently sinuous 

 furrow ; rostrum subquadrate ; funi- 

 cle squamose Bradybamon, gen. nov. 



10 ( 7). First vential segment with the hind 

 margin straight or sinuate; lower 

 surface of rostrum with two deep 



* Some species of ProscepJudaderes have a row of Hat scales along the 

 front edge of the mentum, but no true setae. 



