( 193 ) 



bituberculata, laferibns tnbercnlo minnto submediano armato. Scntello qnad- 

 rangiilare. Eh-tris parallelis, postice commuuiter snbtruncato-rotundatis, ante 

 apicem fortiter declivibns ; sat dense, lateraliter parnm seriatim punctatis ; singnlo 

 elytro crista basali inediana I'ortiter elevata bi- vel trifida, crista liumerali obsoleta, 



5 tnberculis postmedianis, sic : • dispositis instructo. Tarsis brunneo-nigris. 



Long. 12 mm., elytr. 8i, lat. 4|. 



Clothed with dirty grey scales, shading off into bmwn and black, and with 

 sparse short whitish sctnlose hairs, which are denser especially on the apex of the 

 eh'tra, on the under surface and legs. Front of the head with rather closely set 

 deep punctures, vertex with some punctures only between the eyes. The discal 

 elevation of the prothorax is highest in front and gradnally declivous towards the 

 base; its anterior margin is impressed in the middle. Scutellum qnadrangnlar, with 

 the angles somewhat rounded. Elytra with a tran.sverse greyish band behind the 

 middle, and with the apex also pubescent grey. Of the five postmedian tubercles 

 of each elytron the two posterior ones are larger than the three anterior. 



Intermediate tibiae a little curved, and slightly constricted near the tip. 



Hab. Kuilu (A. Mocquerys). 



144. Leprodera congoana Duviv. 



(lameroons. 



145. Monohammus x-fulvum Bates. 



Ogowe. Knihi. (Vmgo, and Loanda. Apparently a rather common species. 



140. Monohammus centralis Duvnv. 

 Axim (W. Afr.), Gold Coast, Kuilu. and Loanda. 



147. Monohammus ruspator (Fabr.). 

 Sierra Leone, Gold Coast, Cameroons, and Kuilu. 



148. Monohammus ruspator ab. basalts Chevr. 

 Cameroons. 



14'.i. Monohammus griseoplagiatus Tlioms. 

 Gold Coast, Ogowe, Kuilu. 



1 SO. Monohammus irroratus < 'hevr. 

 Sierra Leone. 



LtI Monohammus cineraceus sji. uov. 



d" S . J/, niger, infra aequabiliter ciuereo-juibesceus, supra ciuereo-irroratus. 

 Capite paucis punctis instructo ; antennis fulvis, scapo nigro, minute densissime 

 punctulato. Prothorace dorso inaequali, sparsim panctato. Scntello apice 

 rotundato. Elytris irregulariter, versus l.ntera seriatim, punctatis, apicibus singulis 

 rotundatis. Tiljiis tarsisque fulvis. 



Long. 20 mm., elytr. 15, lat. 7. 



Upper surface ashy grey, witli many blaciv spots, which almost form two 

 transverse bands on the elytra, one in front of, and one behind the midtlle. Front 

 of the head with a few jiuncturcs, vertex wilh some punctures only in the middle. 

 Antennae tawny, the tij) of tlie joints a little darker ; scape black, covered with fine 



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