480 MR. H. W. BATES ON [Juiie 17, 



the Fauna to that of other parts of Tropical Africa ; but, such as it 

 is, it points to a close connection with West Africa, especially with 

 the forest-regions of Cameroons and Old Calabar : and wo shall not 

 be far wrong in saj-ing that the Coleoptera confirm what has been 

 already advanced with regard to other departments of the Fauna, 

 viz. that Central Africa belongs essentially to the same zoological 

 subprovince as West Africa. The relation with Eastern Equatorial 

 Africa, i. e. the coast-lands opposite to Zanzibar and the wooded 

 regions of Usambara and Nguru, is more remote. 



Mr. Bonny informs me that the rain-clouds which supply the 

 constant humidity of the Aruwimi forests are brought by south- Avest 

 winds, though squalls come generally from the north-east. Itain 

 falls more or less throughout the year. It will probably be found 

 that the great central forest-area is connected by means of narrow 

 belts of wood along the courses of streams with the coast-forests. 

 Such belts would be quite sufficient to seiTC as lines of migration 

 for forest species of animals of all classes. 



Family Cicinbelid^. 



CiciNDELA oiNCTA, Fabr. 



The specimens differ from all those I have seen from the Gold 

 Coast and the Cameroons in the submargiual white vitta of the 

 elytra being much narrower, and interrupted or even reduced to a 

 short streak near the apex. 



CiCINDELA NEGLECTA, Dej. 



Family Carabid^e. 



Ceaspedophokus bonnti, n. sp. 



E majoribus, capite thoraceque relative parvis eli/trisque multo 

 ampliorihus et convexior'ibus. Niger, nitidzis, capite post oculos 

 convexos ^jerpaj'wni strangulate ; tliorace subovato etsi angtdis 

 p>osticis subrectis, raargine basali fere recto, laterali explanato- 

 rejlexo, sat grosse jnmctato sparsim pilose ; elytris glabris, 

 punctulato-striatis, interstitiis in hoc genere sat spxirsim et 

 subtiliter punctatis, utrinque maculis transversis duabus stra- 

 mineis, interstitia 4—8 tegentibus. Ventris segmenta antice 

 hand creniilata ; episterna postica quadrata, quam latitudine 

 paullo longiora. 

 Long. 23 millim. 



In the proportions of head and thorax to the after-body similar to 

 C. eximius, Laferte, with which it also agrees in the moderate 

 strangulation of the neck and in the suboval outline of the thorax, 

 which has, however, more sinuated sides behind the middle, and 

 distinct, almost rectangular, hind angles. The elytra, in the single 

 example which appears not to be abraded, is nearly glabrous, the 

 lateral interstices only having a few hairs ; the striae are deep and 

 punctured and the punctuation of the interstices is rather shallow 

 and nowhere very dense : the fasciae are straw-yellow, narrow, and 



