366 Rev. F. W. Hope on new Insects from Western Africa. 



Sp. 46. Agrypnus laticollis, Hope. Long. lin. 16 ; lat. lin. 6. Niger, 

 antennis pedibusque fusco-ferrugineis, thorace lato punctulato 

 elytrisque fortissime sulcatis, interstitiis crebre punctatis. Corpus 

 subtus atrum, femoribus tibiisque piceis tarsisque auricomatis. 



Hab. Circa Palmas. 



The above species in Africa seems to represent what Al. fuscipes, 



Fab. does in Asia, and is the largest species yet described. 



LONGICORNES. 



Sp. 47. Mallodon Downesii, Hope. Long. lin. 24 ; lat. lin. 9. Piceus, 

 mandibulis porrectis intusque hirsutis, apicibus 3-dentatis. Thorax 

 fere trans verso- quadratus lateribus depressis et serratis, disco in 

 medio elevato, punctisque variis sparsim dispositis. Elytra picea 

 ad suturam mucronata. Corpus infra piceum, annulis abdominis 

 postice rufescentibus, pectore aurato tomento obsito. 

 The above insect was taken at Fernando Po by my gallant friend 

 Captain Downes ; I have also received it from Cape Palmas. Mal- 

 lodon picipennis and Raddoni are also taken at Sierra Leone. 

 Sp. 48. Acanthophorus Palinii, Hope. Long. lin. 1 7 ; lat. lin. 6. 

 Piceo-brunneus, antennis piceis, thorace marginato 3-dentato, an- 

 ticis spinis majoribus et recurvis, posticis minutis. Thorax flavo- 

 tomentosus, elytris piceis, maculis plurimis villosis obsitis. Corpus 

 infra flavo-tomentosum, tarsis infra rubro-spongiosis. 

 The above insect was sent to me by Mr. Palin, who fell a victim 

 to the unhealthy climate of Sierra Leone. 



Sp. 49. Acanthophorus longipennis. Long. lin. 33; lat. lin. 11. 

 Piceus, thorace marginato 3-dentato, dentibus fere sequalibus, disco 

 in medio tuberculato. Elytra valde elongata, picea, ad humeros 

 parum scabra, maculisque irrorata, lineis longitudinalibus vix di- 

 stinctis. Corpus infra rubro-piceum, pedibus concoloribus. 



Hab. Sierra Leone. 



Phyllarthrius*, novum genus. 



Antenna articulo l m0 crasso, 2 do minore, 3 tio minimo, 6 sequentibus 



gradatim increscentibus et foliaceo-ramosis, externo articulo fere 



ovali, apice subacuto. 

 Thorax fere orbicularis lateribus haud spinosis. 

 Elytra ad apicem gradatim increscentia, rotundata. 

 Pedes femoribus quatuor anticis incrassatis, posticis longioribus et 



parum dilatatis. 



The above characters will at once sufficiently distinguish it from 

 Amphidesmus, Esch., to which it approaches in form : its true locality 

 in the system is doubtful. 



Sp. 50. Phyllarthrius Africanus. Long. lin. 6J; lat. lin. lj. Flavus, 

 antennis atris, sex ultimis articulis foliaceis, thorace fere rotun- 

 dato, elytris postice sensim increscentibus flavis, apicibus autem 

 nigris, totum corpus infra nigrum tarsis solummodo auricomatis. 



• From (pu'h'hou and dgfyov, leaf-jointed Cerambyx. 



