548 MB. Ji. JAC'OBY ON THE [TMay 18, 



Length 3|-J: lines. 



6 . Head remotely and strongly punctured ; the clypeus 

 separated from the face by a strongly rugose groove, its surface 

 more finely punctured; labrum, mandibles, and palpi black; antennae 

 extending beyond the middle of the elytra, robust, black, the basal 

 joint more or less metallic, terminal joints strongly widened ; 

 thorax more than twice as broad as long, the sides but slightly 

 rounded, narrowly margined, the surface subremotely impressed 

 with large round punctures, which are much more separated 

 near the base, the interstices smooth ; scutellum with a few fine 

 punctures ; elytra witliout basal depression, the shoulders rather 

 prominent, the punctures finer than those of the thorax and 

 aiTanged in somewhat irregular, not very closely approached rows, 

 they get still finer towards the apex, the interstices slightly 

 wrinkled here and there below the shoulders ; underside scarcely 

 pubescent or punctured, coloured like the upper siu'face as well as 

 the legs ; the anterior femora with a more or less distinct tooth at 

 the middle. 



Hab. West Africa, Cameroons. 



This Colasj)osoma is one of those in which the thorax is strongly 

 and not closely punctiu'ed, the opposite being the case in many of 

 the African representatives of this genus ; the colour is very vari- 

 able, as is so often the case in these insects, but the black antennae, 

 labrum, and palpi seem constant ; there seems scarcely any differ- 

 ence in regard to the elytral punctuation of the two sexes. 

 C. abdominale, Baly, is a closely alhed species, but differs principally 

 in the colour of the abdomen. I have received most the specimens 

 before me from Dr. Ej'aatz, who informs me that they were obtained 

 by Herr Conradt. 



COLASPOSOMA rOTEATUM, n. Sp. 



Dark greenish-aeneous, pubescent aboA^e, the labrum and the 

 antennae fulvous ; thorax strongl)^ and subremotely puuctured ; 

 elytra with deep transverse sub-basal depression, fijiely punctured, 

 the sides transversely rugose. 



Length 3 lines. 



Head finely longitudinally strigose at the sides of the vertex, 

 sparingly pubescent ; the clypeus not distinctly separated from 

 the face ; labrum fulvous ; antennae slender, fihform, entirely ful- 

 vous ; thorax nearly three times broader than long, the sides 

 rounded, the disc subremotely and strongly punctured, the punc- 

 tures round, the interstices clothed with whitish pubescence, the 

 middle with a narrow, smooth space ; scutellum broader than long ; 

 elytra with a deep transverse fovea below the shoulders, very finely 

 punctured in irregular rows, clothed with rather long silvery pubes- 

 cence, the interstices at the sides transversely rugose ; underside 

 and legs aeneous with a slight purplish gloss, finely pubescent. 



Hah. Delagoa Bay. 



There are three specimens of this species (probably all females) 

 in my collection ; they are closely allied to C. piibescens, Lefev,, 



