Famity—CETONIIDA. Sus-Famity—CREMASTOCHEILIDES. 51 
(pl. X, fig. 11 a). The mentum is oblong, nearly flat, with the anterior angles rounded, the fore margin nearly 
straight, the sides deeply impressed behind the middle for the reception of the base of the labial palpi (fig. 11 2). 
The prothorax has the middle of the dise flat, the sides deflexed ; it is covered with large cicatricose shallow 
punctures ; the posterior angles are sharply prominent and acute; a ridge, slightly oblique, extends forwards 
from each towards the anterior angles of the prothorax, and separates the disc from the deflexed sides. The 
prosternum is armed with a small deflexed spine in front of the anterior coxe (fig. 11 ¢, seen from the front of 
the head). The elytra have the middle of the dise depressed, a rather strongly-raised ridge, parallel with the 
margin, separating it from the deflexed side; the surface is covered with large oval cicatricose punctures, the 
interstices filled in with irregular luteous spots; the two terminal spiracles are prominent, but obtuse. The legs 
are short and strong ; the anterior tibiw obtusely tridentate, and the tarsi very short and 5-jointed, the terminal 
joint of the fore lees being strangulated in the middle and the ungues very minute. 
Species 2 (76)—LISSOGENIUS PLANICOLLIS. 
Niger, opacus; thorace subhexagono ; disco plano angulis posticis rectis; elytris deplanatis. 
Long. 9 mill. (4 lin.) 
Habitat; Guinea. In Mus. Basiliensi. 
Syn.: Lissogenius planicollis. Schaum, Ann. Soc. Ent. France, 1844, p. 421; ibid. 1845, p. 53; Verz. Lam. 
Melit. p. 64. 
‘Caput nigrum opacum, rugoso-punctatum, utrinque ante oculos transversim alte carinatum; clypeo basi 
lateribus parallelo, apice obtuso trigono, acumine emarginato. Thorax longitudine latior, subhexagonus, lateribus 
angulato-rotundatis, margine antico emarginato, angulis anticis acutis deflexis, margine basali minus lato, fere 
truncato, angulis posticis rectis subprominulis, supra disco area triangulari deplanata utrinque ad marginem 
medium obsolete impressus ; niger, opacus, disco lineolis semicircularibus, lateribus lineolis transversis insculptis. 
Elytra thorace duplo longiora, humeris rotundatis, disco omni deplanato, postice callosa, lineolis disco semi- 
ellipticis, lateribus magis irregularibus insculptis, nigra, opaca. Pygidium convexum apice inflexum. Corpus 
subtus nigrum opacum, lineolis arcuatis insculptis tectum.’ 
The above are Dr. Schaum’s characters of the specimen in the Basle Museum from Guinea, which differs 
almost solely, in its locality and entirely black colour, from the Caffrarian insects described above; the prothorax 
is, moreover, described as ‘ subhexagonus,’ which hardly agrees with the latter specimens. 
Genus 22—SCAPTOBIUS. 
(Schaum, Germar Zeitschr. iii. 1841, p. 260.) 
Corpus parvum, obscurum, oblongo-ovatum, depressum: caput vertice in medio subtuberculato ; antennie 
articulo primo magno; clypeus quadratus, e vertice linea curvata separatus, margine antico parum elevato ; 
maxillarum galea et mando unidentati; mentum transverso-quadratum, latissimum os inferne exacte claudens, 
angulis anticis rotundatis, basi in spinam conicam liberam infra jugulum dependentem producta ; palpi labiales 
breves graciles; elytra oblongo-quadrata depressa; pronotum antice posticeque angustatum, intus angulos 
posticos utrinque excisum; prosternum spina parva deflexa setosa ante coxas anticas armatum ; tibie antice 
tridentate dente basali in maribus minus distincto; tarsi tibiis breviores 4- vel 5-articulati ; abdomen subtus, 
ut mihi videtur, in omnibus individuis convexum segmento quinto ad basin transverse et profunde depresso ; 
mesosternum haud prominens, postice in medio angustissimum et inter coxas intermedias retro extensum, 
metasterni medio vix producto conjunctum. 
This genus is composed of a few very obscure South African insects, having the appearance of small 
depressed species of Trox, the surface of the elytra being generally rugose or carinated ; which aie further 
distinguished by the large size of the mentum, terminated behind in a sharp free point beneath the jugulum. 
