JACOBY, PHYTOPHAGOUS COLEOPTERA FROM THE CAMEROONS. 229 



Head finely and reniotely punctured, the clypeus not separa- 

 ted from the face, eyes lar ge, nearly entire, snrronnded by 

 a narrow groove, labrum fulvous, antennse rather long and 

 slender, entirely påle fulvous, the second and third joint 

 equal, the following joints but slightly longer, terminal joints 

 a little thickened; thorax twice as broad as long. narrowed 

 anteriorly, the sides nearly straight, the disc convex, evenly 

 and rather cJosely impressed with round punctures, elytra 

 convex and rounded, with about ten highly raised costee, the 

 fifth one generally interrupted before the middle on account 

 of a transverse depression, the interstices strongly punctate- 

 striate, the humeral callus prominent, tuberculiform, the fol- 

 lowing costa short and obliquely running towards the lateral 

 margin, legs fulvous, all the femora armed with a small 

 tooth. 



Aliied to B. costatus Jac. (Novit. Zool. 1894 p. 519) but 

 dark a3neous, not fulvous, the legs entirely of the latter co- 

 lour as well as the antennye, the elytral costee very strongly 

 raised, the costee themselves of påle piceous colour or obscure 

 fulvous, the other parts dark öeneous. 



Colasposoma eamerunense sp. n. 



Plate 10, fig. 5. 



Metallic greenish, spotted with purplish above, basal 

 joints of the antennse fulvous, head and thorax closely longi- 

 tudinally strigose and punctured, elytra with close rows of 

 punctures at the inner disc and four obsolete longitudinal 

 lines, the interstices at the sides transversely wrinkled, 

 much more strongly so in the female. 



Length 5 mill. 



Head finely punctured and strigose in difFerent directions, 

 the vertex and a spöt at the clypeus purplish, labrum ful- 

 vous, antennse black, the lower five joints more or less ful- 

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

 rounded, she surface convex, longitudinally strigose throughout, 

 the interstices finely punctured, the margins green, the disc 

 spotted with purplish (in well marked specimens four spöts 

 can be seen, two small ones at the sides and two larger ones 

 at the middle), scutellum with a few punctures, elytra rather 



