2 Dr. G. A. K. Marshall on African 
species with which I am unacquainted. They probably do 
not belong to that genus as now understood, and appear 
_to be related to the species here described under Leurops, 
from which they differ in the complete absence of the 
median stria on the forehead—an unusual character in this 
group. The Madagascar 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 the epistome, mandibles, 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). Epistome well defined, bounded by 
a distinct carina or obtuse ridge ; 
cutting-edge of mandibles with a 
median projection or tooth. 
2 (17). Mentum entirely devoid of setz *. 
3 ( 6). Tarsi narrow, setose beneath. 
4 ( 5). Front tibize produced externally into a 
long process; eorbels of hind tibi 
enclosed; mandibles squamose....  Mimaulus, Schh. 
5 ( 4). Front tibiz not produced externally ; 
hind corbels open; mandibles not 
squamose ... weve Mimaulodes, gen, nov. 
6 ( 3). Tarsi broad, spongy beneath ; “corbels 
of hind tibize open, bare. 
7 (10). First ventral segment with the hind 
margin rounded ; lower 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 
bya fine stria which curves strongly 
forwards in the middle; rostrum 
strongly narrowed in front; funicle 
not SqUAMOSE ......0...604.042. Pomphus, 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 Gost weeceees Bradybamon, gen. nov. 
10 ( 7). First ventral segment with the hind 
margin straight or sinuate; lower 
surface of rostrum with two deep 
© /e'elig ee (0) 4 isl es 
* Some species of Proscephaladeres have a row of flat scales along the 
front edge of the mentum, but no true sete. 
