Mr. A. Murray on Coleoptera from Old Calabar. 103 
recorded from Old Calabar) confined to the west coast of 
Africa, but is also found on the east coast. I know of three 
specimens in different collections—my own from Old Calabar, 
one from Natal, in the collection of Mr. Janson, from which 
Dr. Candéze’s description was taken, and one from Algoa Bay, 
in the collection of Mr. Wilson Saunders, nearly twice the size 
of (but still the same as) the other two. 
Eucnemide. 
OISOcERUS*, nov. gen., De Bonvoul. 
This remarkable genus has not yet been published; and I 
had intended that its first appearance should be in M. de Bon- 
vouloir’s work on the Eucnemidz, on which he has been for 
some time engaged. As, however, I have now reached the 
place in my list where it comes in, I have asked my friend 
M. de Bonvouloir to favour me with an advance copy of his 
description, which he has kindly done; so that I am able to 
give the reader that eminent entomologist’s own description 
of this giant of his group, in anticipation of that in the work 
itself :-— 
“* Genus OISOCERUS. 
‘“‘ Head strongly convex, tolerably deeply sunk in the pro- 
thorax ; epistome continuing directly the curve of the fore- 
head, forming a very obtuse angle with the latter, and con- 
sequently distinctly bent in as regards the head, slightly nar- 
rowed at its base, with its anterior margin arched in front. 
Mandibles only showing exteriorly a surface transversely 
arched and narrow, very much crossed, with a long and sharp 
point. Antenne distinctly shorter than the half of the body, more 
or less strongly flabellate. Pronotum short, strongly attenuated 
in front; marginal ridges and prosternal sutures converging 
in front. Propectus not canaliculated below along the external 
ridge, showing laterally a single marginal line obliquely con- 
verging in front, starting from the posterior angles and reach- 
ing the anterior angles, deflexed, without another supplemen- 
tary line. Propleura tolerably broad, subtriangular. Pro- 
sternal sutures rectilimear. Prosternum without mentonniére, 
with its anterior margin raised in a keel very slightly sinuated 
in the middle. Metathoracie episterna subparallel; epimera 
invisible. Posterior haunches furnished with an upper trans- 
verse blade tolerably narrowed on the outer side, and raised 
above the abdominal surface so as to leave a free passage for 
the thighs to rest in. Legs rather narrow, scarcely thickened 
* From oigds, a willow, and képas, a horn, in allusion to its flabellate 
antenne. 
