482 MR. H. w. BATES ON [Junel7, 



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

 interstices in all three are impunctate. The labrum is broadly 

 emarginated. 



Family Passalld^. 



DiDIMTJS PTJNCTIPECTUS, Kaup. 



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

 from Guinea. 



Family LucANiDiE. 

 Metopobontus savagei, Hope. 

 A widely distributed West-Coast species. 



HoMODEBUs MELLTi, Parry. 



A single female example, differing in nothing from specimens 

 found in the Cameroons district. 



Family Copeii)^. 

 Gtmnopletjetjs C.-ERULESCENS, Olivier, var. centralis. 

 A forma typica differt thorace disco politisshno, spatiis Icevibus 

 latioribus elytrisque versus suturam loevioribus, interstitio tertio 

 sparsim {nee densissime) gramdato. 

 Long. 10 mUlim. S • 



One male example, differing from numerous specimens of G. 

 ccerulescens 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 gense, broad and rounded. The underside of the 

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



AjfACHALCos CTJPEEUS, Fabr. 



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

 Coast of Africa. 



Family Melolonthid^. 



PsEtrDOTROCHALTJS ? 



One much-damaged example of an apparently new species. 



Family Rutelid^. 



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 DrNAsxiDiE. 

 Oeyctes boas, Fabr. 

 A very widely-distributed African species. 



