1890.] ON COLEOPTERA COLLECTED BY MR. BONNY. 637 



Fig. 8. Ditto ; dorsal scales. Ibid, r., series of ridge-seales. [P. 3809.] 

 9, 10. Ditto ; caudal region. Ibid. [47894, 47896.] 

 11. Apatcopholis laniutus ; head, lateral aspect. Upper Cretaceous, Hakel, 



Mt. Lebanon, br., branchiostegal I'ays ; orb., orbit ; op., operculum ; 



p.02}., preoperculum with spine («). [P. 48G9.] 



All the specimens are preserved in the British Museum, and the numbers 

 refer to the Eegister of the Geological Department. All the figures are of the 

 natural size. 



4. On tlie Heteromerous Coleoptera collected by Mr. W. 

 Bonny in the Aruwimi Valley. By G. C. ChampioNj 

 F.Z.S. 



[Eeceived November 13, 1890.] 



(Plate LVI.) 



The following is a list, vAth. descriptions of new species, of the 

 Heteromerous (/oleoptera collected by Mr. Bonny at the Yarahuya 

 Camp. It forms a continuation of the paper contributed by 

 Mr. Bates {ante, pp. 479-492), and has been undertaken at his 

 request. Seventeen species only, representing the families Tene- 

 brionidse, Lagriidse, and Meloidse, are contained in the collection ; 

 of this number seven are described as new, and one new genus is 

 added. Mr. Bates's remarks {pp. cit. p. 480) as to the similarity 

 of the fauna with that of the Cameroons and Old Calabar apply 

 equally well to the Heteromera. 



Family Tenebrionid^. 



Taraxides, Waterh. 



Taraxides, C. O. Waterhouse, Ann. & Mag. Nat. Hist. 4th ser. 

 xvii. pp. 288, 289 (18/6). 



Dischidus, Kolbe, Ent. Nachr. xii. p. 297 (1886). 



Taraxides sinuatus. 



Helops sinuatus, Fabr. Syst. Eleuth. i. p. 160 ; Beauv. Ins. Afr. 

 et Amer. p. 139, t. 30 b. figg. 9, a, b. 



Nyctobates confusus, Westw. P. Z. S. 1842, p, 118 ; Trans. Z. S. 

 iii. p. 224, t. 15. figg. 6, 7 ; Ann. & Mag. Nat. Hist. xi. p. 532 (1843). 



Three examples of the dark form. 



Taraxides gibbipennis, sp. n. (Plate LVI. fig. 1, d' .) 



Black, subopaque, the elytra with a greenish-seneous lustre. 

 Head finely and thickly punctured, b'trongly longitudinally carinate 

 on either side just within the eyes; antennae ( c? ) short, not 

 reaching the base of the prothorax, joint 8 about as broad as long, 

 joints 9 and 10 transverse; prothorax transversely subquadrate, 

 slightly narrowed in front, bisinuate at the sides behind (the anterior 

 sinuation formed by an interruption of the sharp lateral carina), the 



Proc. Zool. Soc— 1890, No. XLIII. 43 



