new genera and species of CallichromiuEe. 397 



punctulato plagsique teuui velutina medio Itevi, interdum fere 

 omnino laivi : elytris gradatim attenuatis, nitidis, lateiibus et 

 medio basi subtiliter punctulatis et tenuiter sparsim velutinis, 

 interdum toto glabris et punctia majoribiis sparsim conspersis : 

 corpore subtns fere glabro, lateribus tenuiter argenteo-sericeo, 

 abdomine plerumque violaceo. Long. 14-17 lin. $ , ^ . 



Distinguished from its nearest ally M. plntina bj the rela- 

 tively longer elytra and the colour, Avhich is dark brassy (slightly 

 golden) or coppery brown, sometimes inclined to purple. The 

 majority of examples compared also differ in the more glabrous 

 surface, both of thorax and elytra ; the parts clothed with thin 

 pile and minutely punctured are here of much smaller area, and 

 the elytra are sometimes entirely naked and tolerably strongly 

 punctured throughout, the thorax in the same examples being 

 nearly impunctate. The posterior corners of the disk of the 

 latter are sometimes strongly wrinkled. 



Mt. Cameroons (G. Thomson). 



Jfecaspis cJirjsina. 



Aurato-viridis politissima, antennis et pedilius nigris, femori- 

 bus (basi exceptis) rufis, tarsis posticis argenteo-pilosis : thorace 

 omnino (tubercuHs anterioribus 2 exceptis) transversim rugosis, 

 iuterstitiis punctatis : elytris passim punctatis, versi;s humcros 

 solum pihs nonnulis nigris. Long. 14 hn. $ . 



M. Iceta, Hope, Ann. t^- Mag. Nat. Hist. vol. xi, 1<S43, p. 368 

 partim ? 



Distinguished by its transversely wrinkled thorax. The ruga? 

 are slightly waved and extend (with interruptions in the lateral 

 and anterior depressions and on the dorsal tubercle) to the fore 

 and hind margins and the lateral spines. The elytra are ])retty 

 evenly and not closely punctui-ed throughout. The colour is a 

 sjilendid golden-green, more brassy on the under surface. 



Sierra Leone. 



Mtcaspis plntina. 



Viridi-jenea subaurata interdum subcyanea, nitida, thoracis 

 disco elytrorumque basi et lateribus subvelutinis ; antennis pedi- 

 busque nigris, tarsis argenteo-pilosis . capite subtihter punctu- 

 lato : thorace disco elevato subtilissime punctulato et brcviter 

 nigro-velutino : elytris gradatim attenuatis 8ul:)tiUssinic alutacois 

 linea lata utrinque longitiidinaU glabriori sparsim jiimctulata ; 

 or2:)orc subtus tenuiter argenteo-sericeo. Long. 14 lin. 9 • 



