new Species of Histeride. 195 
with evenly scattered elongate or aciculate punctures; the 
mesosternum sculptured like the prosternum, but the punc- 
tures are all aciculate, arched anteriorly, very feebly sinuous 
on either side, sulcate on either side, but with no marginal 
stria anteriorly; the metasternum furrowed in the middle, 
punctures aciculate near the furrow, oval nearer the sides, 
margined along the base; the abdominal segments have 
round punctures somewhat closely set; the anterior tibiz 
5-dentate. 
Hab. Cameroon. 
Trypobius pinguis, sp. n. 
Elongatus, cylindricus, niger, nitidus; capite convexo, clypeo bi- 
sinuato; pronoto pone oculos depresso, stria laterali valida ; 
prosterno margine (basi excepta) subelevato ; mesosterno utrinque 
sulcato. 
L. 43 mill. 
Elongate, cylindrical, robust, black, shining; the head, 
face convex, very polished, clypeus apically bisinuous, surface 
with small scattered punctures, and one large puncture on the 
vertex between the eyes; the thorax, lateral stria very strong 
and markedly sinuous, terminating at the anterior angle, 
behind the eye there is a distinct depression, surface distinctly 
punctured but not very densely, there is no median line; the 
elytra with a narrow smooth basal margin, punctured like 
the thorax, and so also are the propygidium and pygidium; 
the prosternum slightly incised at the base, parallel at the 
sides, lateral stria deep and straight and continued along the 
anterior margin, feebly punctulate, margin (except at the 
base) somewhat raised ; the mesosternum obtusely acuminate 
in front, broadly sulcate on either side, the punctures and 
those of the metasternum are not so thickly set as the dorsal 
ones, the metasternum has a median channel; the anterior 
tibiz are 5-dentate. 
All the known species of this genus have a single notable 
puncture on the vertex of the head. 
Hab. Cameroon. 
Trypobius athiops, sp. n. 
Elongatus, cylindricus, niger, nitidus; capite convexo, pone oculos 
impresso ; pronoto, stria laterali valida, profunde sinuato, lateral- 
ibus post medium prominulis ; prosterno antice haud recto, basi 
tenuiter inciso; propygidio pygidioque vix dense punctatis, 
L. 33 mill. 
