OF TROPICAL AFRICA. 215 



This description is made from a specimen in the coUection of the Rev. F W Hope 

 received from M. Westermann of Copenhagen, under the name of T. serratus, and as 

 a native of Gumea. It also exactly accords with a specimen in the cabinet of the 

 British Museum, except that the latter is rather shorter than Mr. Hope's individual. 



Mr. Melly possesses a specimen which also appears to me to be identical with Mr. 

 Hope's above described, agreeing with it in the transverse thorax and form of the tibiae ; 

 It is however only 14^ lines long, the hind femora have two subapical teeth, and the 

 hind tibiae are but slightly serrated within. 



Species 3. Prioscelis (Iphius) Raddoni. 

 Tab. XIV. Fig. 6. 

 P. antennis brevibus, articulo ultimo quadrato ; tibiis anticis curvatis, apice dilatatis,posticis 

 mtus serrulatis, extus ad apicem subito dilatatis ; prothorace transverso-quadrato 

 punctis duobus minutis distantibus versus marginem posticum. 



Long. corp. lin. 14 ; capitis, 3 ; prothor. 3 ; lat. 3i; elytr. long. 8, lat. 4. 



Hab. in Guinea. In mus. nostr. Comm. Dom. Raddon. 



The insect is black, except the elytra and abdomen, which are pitchy ; the head is 

 punctured, the disc being more sparingly so than the clypeus and hind part ; the man- 

 dibles are toothed as in the preceding species, and the head similarly channeled • the 

 space between the eyes is however rather more elevated, with a circular shallow im- 

 pression in the middle. The maxillarj^ palpi are rather more securiform than in the 

 preceding, and the labium has a tubercle between the base of the labial palpi; its anterior 

 margin is also produced in the middle into a smaU point. The antenna are not lon<^er 

 than the head, with the terminal joints considerably dilated and transverse, the last one 

 being nearly quadrate, with the outer angle rounded. The prothorax is quadrate or 

 rather shghtly broader behind than in front, very glabrous and margined, the anterior 

 angles not so prominent as in the preceding, but the posterior angles similarly subemar- 

 gmate : each of the elytra is marked with nine punctated stria ; the 3rd and 4th 5th 

 and 6th, 7th and 8th stria being confluent together before the tip, the 5th and 6th not 

 extending so far as the confluence of two on either side. The femora are similar to 

 those of the preceding, except that the subapical angular projections of the hind ones 

 are smaller, the anterior tibiae are more curved, and the dilatation at the tip on the out- 

 side more sudden ; the middle tibiee are also rather more curved and sUghtly dilated 

 and the hind tibia are considerably more dilated on the outside at the tip 



I have named this species after W. Raddon, Esq., the celebrated engraver, whose 

 zeal for entomology has led to the discovery of many rare and new species of insects 



l-.b—lhe Rev. F. W. Hope has recently received two specimens from Ashantee 

 agreeing with my individuals in length, but being throughout broader and more robust 

 ot a black colour, less shining, with the punctated sulci of the elytra deeper, the clypeus 



2f2 



