90 Mr. A. Murray on Coleoptera from Old Calabar. 
but it cannot be this or any of the following cornute species, 
for his species has the apex of the elytra hollowed out and with 
the teeth projecting. I have received another species, under the 
mistaken name of Apate cornuta, from Abyssinia, which comes 
much nearer this, and which I shall call B. Abyssinicus, as from 
the indications of its characters, which I am. about to mention, 
I may be entitled to give it a name. It is distinguished from 
B. cornutus by many characters. The thorax is much shorter and 
less massy. The projecting angles of the thorax are not of the 
same shape: in B. Abyssinicus they are not flat, nor broader at 
the side than above ; in it there is no tubercle on their under- 
side. They are turned in in front, and the hollow between them is 
more rounded, open, and less sloped to the centre; that hollow 
in it is much more pilose. The whole surface of the thorax 
(except a longitudinal dorsal space) is covered with well-marked 
distinct small tubercles, instead of the disk being smooth: its 
elytra have traces of punctate striz; but, instead of being re- 
markably distinct, they are almost merged in a tendency to 
transverse indiscriminate corrugation. The costz are also much 
more prominent. 
2. Bostrichus productus, Imhoff in Bericht tiber die Verhand- — 
lungen der Naturforschenden Gesellschaft in Basel, vol. v. 
p. 176. 
Mas. Niger, punctatus; thorace cornibus 
intus haud tuberculatis et elytris haud apice 
‘prolongatis. Femina. Niger, punctatus ; 
thorace cornibus intus bituberculatis; ely- 
tris singulis apice obtuse prolongatis. 
Long. 84 lin., lat. 24 lin. 
Like B. protrudens, but easily distinguished from it by the 
projecting angles of the thorax being curved instead of straight; 
and the female is equally easily distinguished both from it and 
the male, as well as the other species with curved thoracic pro- 
jections, by the apex of each elytron being produced into a pro- 
jecting knob. 
Male. The head is nearly the same as in B. protrudens, except 
that the intermediate shelf between the hollow furrow at its back 
part and the ridge forming an apparent swollen upper lip is 
absent; that ridge is consequently broader, and is not marked 
by any ‘longitudinal line or division. The thorax is also nearly 
the same, with the following exceptions :—it is narrower in front, 
and the posterior angles are rather more rounded; the anterior 
angles of the thorax are incurved instead of being nearly straight, 
and have a slight turn outwards again at the very tip; viewed 
