Mr. A. Murray on Coleoptera from Old Calabar. 99 
8. Psephus beniniensis, Cand. Elat. ii. p. 21. 
Only one or two specimens received. 
OLopH aus, Cand. 
Olopheus gibbus, Cand. Elat. 1. p. 15. 
This varies considerably in size, some being very nearly twice 
the size of others. 
TETRALOBUS, Lepell. et Serv. 
1. Tetralobus Chevrolati’, Cand. Elat. 1. p. 374. 
In my specimen I observe one character not noticed by 
Candéze in his description, viz. that the spine of the pro- 
sternum is deeply canaliculate. 
One specimen. 
2. Tetralobus subcylindricus. 
Nigro-brunneus, pube fulvo-sericea brevissima sat dense ves- 
titus, punctatissimus, elongatus, elytris subcylindricis ; 
fronte punctata, postice linea levi carinata, antice excavato, 
carina frontali transversali subrotundata; prothorace crebre 
et sat fortiter punctato, inequali, subquadrato, antice lateri- 
- bus rectis et parallelis, angulis anticis rotundatis, angulis 
posticis divaricatis, apice retrorsum flexis, subtus grosse 
sparsim punctatis; elytris subparallelis, prope medium 
levissime dilatatis, creberrime leviter punctatis, haud striatis, 
obsoletissime nervatis, apice angulis suturalibus rotundatis ; 
subtus mesosterno et metasterno sat longe fulvo-pilosis ; ab- 
domine fulvo-sericea pube vestito, ischiis fere parallelis, 
transversim depressis, interne parum incisis, vix dentatis. 
Long. 19 lin., lat. 6 lin. 
Brownish black, clothed with an excessively short but dense 
silky fulvous down, thickly punctured, elongate, rather narrow, 
transversely convex, so as to appear almost subcylindric, at 
least as regards the elytra. Head rather coarsely punctate, 
behind with a slight smooth raised line, in front with a deep 
longitudinal excavation ; the frontal transverse keel subrotun- 
date, in some aspects like a truncate triangle with the corners 
rounded and the middle slightly simuate. The prothorax 
closely and rather coarsely punctate, unequal on its surface, 
slightly depressed on each side of the middle in front, also on 
the disk, and on each side behind the middle, and with a small 
oblique distinct fovea near the posterior angles; the sides 
parallel, margins rounded in, anterior angles rounded, posterior 
strongly divaricate, with their apex slightly incurved, and with 
a small raised tubercle in their middle ; base with a sel in front 
7 
