1892.] COLEOPTERA FROM CENTRAL AFRICA. 91 



Family Chrysomelid^. (By C. J. Gahan, M.A.) 

 Megalopodin^. 



4. PCECILOMORPHA MURRAYI, Baly. 



This species was founded upon specimens from Old Calabar. 



EuMOLPINiE. 



5. CORYNODES BONNYI, n. Sp. 



C. cyaneo simillimns, sed differt ehjtris crebre punctatis vix 

 nitidis, et articulis antennarum qxdnqtie ultimis plus dilatatis. 

 Long. lOg millim. 



Resembling very much in colour and general appearance O. 

 cyaneus, Fabr, The last five joints of the antennae are strongly dilated, 

 the seventh joint triangular, the eighth to eleventh subquadrate, 

 transverse, the ninth and tenth each almost as broad as long. Pro- 

 thorax shining, sparingly and not very distinctly punctured. Elytra 

 rather dull, thickly punctured. Claws of tarsi cleft, with the inner 

 division acute, shorter than the outer. 



The species may be distinguished from C. compressicornis (which 

 it resembles in the punctuation of the elytra) by the greater dilatation 

 of the apical joints of its antennae and by the sparser punctuation of 

 its pronotum. 



6. COLASPOSOMA ARUWIMIENSE, U. Sp. 



Cyaneum, nitidum; pedihus viridescentibus ; prothorace quam latior 

 vix duplo longiore, dense punctulato ; elytris crebre et sat for- 

 titer punctatis, lateribus utrisque obtuse vel obsolete uni- 

 costatis. Long. 8-10 millim. ' 



Dark blue, with the legs metallic green ; head, prothorax, and 

 scutellum varying to metallic green. Head rather thickly and not 

 very strongly punctured. Prothorax with its median length rather 

 more than half the width measured across the base ; thickly and 

 not strongly punctured above ; lateral margins rather feebly convex. 

 Scutellum sparsely punctured. Elytra very thickly and rather 

 strongly punctured, with the punctures running together to form a 

 feeble rugosity on the sides just below and behind the shoulders. 

 Beginning a little behind the shoulder there is a single obtuse and 

 slightly elevated costa, along the side of each elytron ; this costa is 

 sometimes obsolete. The shoulders of the elytra are slightly 

 prominent. 



The present species may perhaps be only a local variety of a 

 species (C. fairmairei, Lefev.) occurring in Old Calabar. The latter 

 has the prothorax much more distinctly punctured, the punctures 

 being larger and less closely placed together. The colour is very 

 variable — dark blue, metallic green, and bronze-purple. 



7. CoLASPOSOMA, sp. 



A single specimen, differing from the preceding in its colour — a 



