42 OrpER—COLEOPTERA. Sectlon—PENTAMERA. 
luteo-setosis ; scutello et elytris parce punctatis, horum basi lateribus et apice magis punctatis, singulo striolis 
4 gracillimis longitudinalibus per paria dispositis, sutura depressee proximis et parallelis ; disco inter medium et 
striolas convexo ; humeris prominentibus suleo curvato pone humerum, alteroque minime profundo oblongo sub- 
laterali pone medium singuli posito; abdomine infra convexo, punctato; pygidio convexo setoso ; antennis 
piceis; tibiis anticis acute bidentatis. 
Long. corp. lin. 54; lat. elytr. bas. lin. 2. 
Habitat ; Damara Land, Afric. Austr. In Mus. W. W. Saunders. 
The polished surface of this insect, and the peculiar form of the prothorax, well distinguish it from its 
congeners. It bears indeed a certain amount of resemblance to some of the species of Cymophorus, but the 
very acutely bidentate galea of the maxille (fig. 1a), and the great length of the bidentate terminal spine of 
the mando, prevent its introduction into that genus. The elytra are twice the length of the widest part of the 
prothorax; the four posterior tibie are longitudinally sulcated, and there is a fine impressed line down the 
middle of the metasternum. 
Species 14 (59)—CGJNOCHILUS CORNIGER, 
Puare XII, Fie. 4. 
Parvus, angustus, capite inter oculos tuberculo elevato instructo; prothorace subovali in medio supra im- 
pressione ovali magna notato ; elytris elongatis sub-parallelis, antennis rufo-piceis. 
Long. corp. lin. 3}. 
Habitat; Africa Austr. In Mus. Reg. Hafniensi (olim D. Westermann). 
Syn.: Cenochilus corniyer. Westw. MS; Schaum, Verz. Lam. Melit. p. 62. 
This very small narrow species is at once distinguished by the raised tubercle in the middle of the head, between 
the eyes, and by the somewhat oval prothorax having a large oval impression in the middle of its upper side. The 
head is rather short, the clypeus broad, with the fore margin slightly emarginate in the middle. The pro- 
thorax is broader than the head, the sides rounded, the greatest width being about the middle of its length. 
The anterior angles are not prominent, but the posterior ones are acute, and the hind margin is slightly emargi- 
nate in front of the scutellum. The elytra are very narrow. The head is punctured rather strongly and closely, 
as is also the front of the pronotum, with the punctures circular, but behind the middle the punctures are more 
linear, and so arranged as to form two oval circles. The elytra are punctured, the punctures emitting luteous 
sete, those on the basal half of the elytra being sometimes more or less confluent, forming two or three ill- 
defined abbreviated strie in addition to the two decided striz on each side of the suture. The posterior spiracles 
form two very minute conical points. The legs are rather robust, the anterior tibiw, in the only specimen I 
have seen, broad and bidentate, the tarsi flattened, with the joints dilated, only the three apical joints being 
visible from above in the anterior feet. The prosternum forms a strong deflexed spine in front of the fore coxe. 
The abdomen is convex beneath. On the under side the body is black and glossy, punctured, and setigerous, 
as are the top and under sides of the prothorax. 
Species 15 (60)—CQSNOCHILUS CRASSIPES. 
Puate XII, Fic. 5. 
Parvus, angustus, niger, capite antice emarginato vertice convexo; prothorace majori, lateribus rotundatis, 
antice angustiori, angulis posticis rectangulis ; disco haud longitudinaliter impresso, basi transversim biimpressa ; 
elytris prothorace haud multo latioribus, apice rotundatis, longitudinaliter leviter striolatis, striolis postice 
abbreviatis ; capite et pronoto punctis minutis rotundis ; elytris nitidis punctis minimis, tibiis omnibus latis. 
Long. corp. lin. 4. 
Habitat; Guinea, Africa. In Mus. Deyrolle, Parisiis. 
This species is distinguished by its convex head and prothorax, the latter nearly as broad in the middle as 
the elytra, with the hind part wider than the front, and by the very broad bidentate tibia. The clypeus is rather 
dilated on each side into a flattened lobe, with the margin slightly reflexed, the fore margin being emarginate 
in the middle. The prothorax is broadest across the middle, with the sides rounded, the anterior portion being 
much more gradually narrowed than the hinder, which latter has the posterior lateral angles acute and slightly 
