482 MR. H. -W. BATES ON [Jiiiie 17, 



C. lissoderus is black and only faintly metallic. The elytral 

 interstices in all three are impunctate. The labruin is broadly 

 emarginated. 



Family Passalid^. 



DiDIMUS PTJNCTIPECTUS, Xaup. 



Agrees -with Kaup's description of the species founded on examples 

 from Guinea. 



Family Lucantd^. 



Metopodonxus savagei, Hope. 



A widely distributed West-Coast species. 



HoMODEKUs MELLYi, Parry. 



A single female example, diiFering in nothing from specimens 

 found in the Cameroons district. 



Family Copriij^. 

 Gtmnopleurus cjeeulescens, Olivier, var. centralis. 



A forma typica cliff crt tliorace disco politissimo, spatiis Itevibns 

 latioribus elytrisque versus siituram leevioribus, interstitio tertio 

 sp>arsim {nee densissime) gtanulato. 



Long. 10 millim. c5' • 



One male example, differing from numerous specimens of G. 

 ccnridescens from Senegal with which I have compared it by the 

 larger smooth spaces of the disk of the thorax and the finer and less 

 densely granulated sides of the elytra, in which the third interstice 

 is partly smooth. The clypeus is 4-dentate, with the two lateral 

 teeth, like the geuge, broad and rounded. The underside of the 

 femora, as in the typical form, has an acute but small tooth. 



Aj^achalcos cupeetjs, Fabr. 



One example, agreeing with others from various parts of the "West 

 Coast of Africa. 



Family Melolonthid^. 



Pseudotrochalijs ? 



One much-damaged example of an apparently new species. 



Family RuteliDjE. 



Anomala (Ehinoplia) ? 



Two examples of a species allied to A. forhesi from the Niger, 

 but not further determinable owing to the broken condition of the 

 tarsal claws. 



Family DrNASTiDiE, 

 Oryctes BOAS, Fabr. 

 A very widely-distributed African species. 



