22 OrpER—COLEOPTERA. Srecrion—PENTAMERA. 
Syn. : Cetonia fuliginea. Oliv. Ent. I. 6, p. 20, 17, pl. II, fig. 12 ; Schonh. Syn. Ins. iii. p. 144, 162. 
Cremast. fuligineus. Gory et Perch. Mon. Cet. p. r1o, pl. XV, fig. 1; Schaum, in Germar Zeitschr. iii. 
p- 264, 1; Burmeister, Handb. iii. p. 657, 1. 
Hoplostomus fuligineus. Boheman, Ins. Caffr. pars ii. p. 49. 
Cetonia melanaria. Dejean Cat. Ed. ili. p. 172. 
Macrominus (Oplostomus) fuligineus. MacLeay, Annul. 8. Afr. p. 21. 
Species 3 (35)—OPLOSTOMUS PLATYCEPHALUS. 
Prats IX, Fic. 8. 
Oblongo-obovatus, supra paullum convexus, niger, parum nitidus; capite magno, crebre punctulato, apice 
leviter rotundato ; prothorace brevi, profunde, crebre punctato, postice angustato ; singulo leviter bicostato. 
Long. corp. lin. 83-9=16-183 mill. ; lat. 9{-94 mill. 
Habitat ; tractus fluvii Gariepis, Caffraria. In Mus. Holm. et Oxon. (e Mus. preeced. communicatus). 
Syy.: Hoplostomus platycephalus. Westw. MS; Schaum, Verz. Lam. Melit. p. 61; Boheman, Ins. Caffr. pars ii. 
P- 49. 
This robust, dull black insect has the head very broad (fig. 82, seen beneath; 84, seen sideways), with the 
fore margin slightly reflexed. The basal joint of the antenne is very large and triangular, the second joint 
being inserted near the middle of its under surface. The mandibles (fig. 8 ¢) are very broad, the inner basal angle 
being much produced internally. The maxille have the two lobes produced into very sharp and slender teeth 
(fig. 8d). The mentum is very broad, strongly angulated below the middle (as seen in fig. 84). The labium 
has two setose lobes applied to the inner surface of the base of the mentum, and the labial palpi arise far apart, 
near the lateral margins of the mentum (fig. 8c). The prosternum is armed with a short slightly deflexed 
spine in front of the anterior coxe (fig. 84), and the mesosternal process is very short, flat, and acuminated 
behind, meeting the advanced point of the centre of the front of the mesosternum (fig. 8/). The body beneath 
is black and glossy ; the sides of the metasternum marked with small oblique striole; the abdomen beneath is 
convex; the pygidium convex, with a very slight central, oblong, scarcely raised tubercle; the segments finely 
but distantly punctured. 
Species 4 (36)—OPLOSTOMUS BOCANDEI. 
Habitat ; Guinea, Lusitanorum. 
Syn.: Hoplostomus Bocandei. Thomson, Mus. Scient. 1. 1860, p. 37- (Mihi invisus.) 
Genus 10O—PROBLERHINUS. 
H. Deyrolle, Ann. Soc. Ent. France, 1864, p. 321. 
Corpus breve crassum nigrum, nitidum parcius punctatum. Caput (pl. VII, fig. 5 a) transversum vertice 
elevato; antice bituberculato, lateribus extus oculos in spinam utrinque productis; clypeo transverso depresso 
margine antico crasso elevato, medio carinato. Antennarum articulus basalis mediocris. Maxillarum galea longa 
apice acutissima subtransversa, extus ad basin tuberculo instructa; mandonis dente apicali acutissimo integro 
galea parallelo (fig. 54). Mentum magnum subtrigonum, conecavum, margine antico reflexo ; basi acuminatum 
(fig. 5c, caput cum mento subtus visum). Prothorax magnus transverse subquadratus, antice parum latior, 
lateribus rotundatis; margine antico tuberculo transverso cum lateribus elevatis et medio depresso instructo ; 
margine postico in medio emarginato. Elytra brevia pronoto vix latiora apice rotundata. Pygidium convexum 
integrum. Prosternum inerme. Metasternum (fig. 5c) inter coxas medias et illas haud superans, antice sub- 
tuberculiforme. Pedes breves crassi. Tibie antice extus tridentate (fig. 5 d). 
The remarkable and unique insect, which forms the type of this genus in its robust form and teeth of 
the maxillx, approaches Oplostomus, from which the armature of the head and prothorax, the shape of the 
mentum, and the tridentate anterior tibiae at once remove it; in several of the latter characters it approaches 
Cyclidius. 
