1890.] ON COLEOPTERA FROM CENTRAL AFRICA. 479 



black ; claval area and apex of corium and the membrane black ; 

 connexivum luteous with black spots ; head reddish ochraceous, with 

 the base narrowly black ; rostrum black, its base reddish ochraceous ; 

 body beneath black ; margins of sternum, marginal and central discal 

 spots to abdomen luteous ; legs black, a[)ices of femora and bases of 

 tibiae reddish ochraceous (anterior legs and the antennae mutilated). 



Long. 15 millim. 



Allied to S. vitticollis, Rent., but differing from the description 

 of that species in the colour of the connexivum, legs, &c. 



Subfam. ACANTHASPIDINiE. 



45. ACANTHASPIS BILINEOLATA. 



Reduvius hilineolatus. Pal, Beauv. Ins. p. 14, Hem. t. 1. f. 3 (1805). 



HOMOPTERA. 

 Fam. CicadidjE. 



46. PCECILOPSALTRIA POLYDORUS. 



Oxypleura polydorus. Walk. List Horn. i. p. 32. 14 (1850). 



47. Platypleura stalina. 



Platypleura stalina, Butl. Cist. Ent. i. p. 193. n. 39 (1874). 



Fam. Cercopid^. 



48. Ptyelus grossus. 



Cercopis ffrossa, Fabr. Ent. Syst. iv. p. 47. 1 (1794). 



3. On some Coleopterous Insects collected by Mr. W. Bonny 

 in the Aruwimi Valley. By H. W. Bates, F.R.S., 



F.L.S. 



[Keceived June 13, 1890.] 



The following is a list, with descriptions of new species, of the 

 Coleoptera belonging to the tribes Geodephaga, Lamellicornia, and 

 Longicornia, collected by Mr. Bonny during the recent Expedition 

 for the Relief of Emin Pasha. Mr. Bonny informs me that they 

 were all taken at Tambuya Camp and on the march through the 

 forest-region towards Albert Nyanza, between the months of October 

 1887 and November 1888, and that the collection is only a remnant 

 of that originally made, the greater portion of it having been 

 destroyed for want of suitable appliances for preserving and storing 

 the specimens. 



The collection, comprising examples of only 73 species, is clearly 

 merely a fraction of what really exists in the forest-region, similar 

 areas in other tropical countries being known to yield at least ten 

 times the number of species of the same families. The material is 

 therefore not sufficient for a satisfactory estimate of the relations of 



