( 175 ) 



eyes and somewhat wrinkled ; throat concputrically wrinkled. Scajje nf antennne 

 slender, almost cylindrical, coarsely but not densely imnctured. Prothorax sljo-htlv 

 biconstrictcd, broader posteriorly than in front, almost pyriform ; punctuation 

 exceedingly sparse ; basal constriction with some transverse wrinkles. Scutelluni 

 triangular, and smooth. Elytra rather strongly and transversely rugate-punctate ; 

 disc with a fine nervule. Under surface greenish blue, finely aud closely punctulated 

 all over. 



Hab. Kuilu (A. Mocquerys, 1892). 



Oxyprosopus Thoms. Type : Cerambi/JL: foeraU'us Oliv. 

 Front and mandibles elongate, forming an acute triangular muzzle ; antennae 

 thick, about as long as the body or shorter ; prothorax and elj-tra convex, the former 

 rounded or tubercled at the sides ; anterior ccixal cavities closed behind : four 

 anterior femora clavate or subclavate, posterior ones slender ; sixth abdominal 

 segment of the male congpicnous. 



Sierra I.eone. 

 Senegal. 

 Sierra Leone. 



101. Oxyprosopus cyliudricus Bates. 



102. Oxyprosopus caeruleus (Oliv.). 



103. Oxyprosopus speciosus (Dalm.). 



104. Oxyprosopus viola sp. nov. 



^i. O. pnrpureo-violaceus ; antennis pedibuscjne pro parte nigricantibus. Frons 

 impressione transversa laevi instructa, sat sjiarsatim punctata ; antennarum tnberes 

 mimite densiter punctulati ; vertex medio laevis. Antennarnm scapus cylindricus. 

 Prothorax post medium rotnndato-dilatatns, antice posticeiiue angustatus ; disco 

 jjarnm convexo, ad basim abrnpte declivi ; minute parnm confertim punctulatus, 

 parte dilatata infra impressa. Scutellum minutissime ]mnctnlatum, pulic nigra 

 vestitum. Elytra minute disperse, pro parte deusius, punctata, interstitiis puuctis 

 miilto majoribns. Subtus pube grisea sparsatim vestita. 



Long. 26 mm., elytr. 18, lat. 6J. 



The single s])ecimen I have before me seems to be rubbed, as the prothorax aud 

 elytra have only traces of a black velvety pnbesceni'e here and there, whilst the 

 pubescence of the scntellum is dense. The species may i» distinguished partii'ularly 

 by the shape of the prothorax, aud by the punctuation. 



Violet, with a tint of purjjle ; antennae and legs blackish. Head with a 

 sraooth transverse impression in front; the punctuation rather sjiarse before, and 

 very dense aud fine behind the imi)ression ; middle of the vertex nearly impunctate. 

 Antennae extending almost to the tip of the elytra; the scape cylindrical. Prothorax 

 broadest beyond the middle, where the sides are swollen, finely punctured all over, 

 and somewhat rugose at the sides close to the anterior margin, the punctures 

 rather sparse in the middle, especially near the base ; sides somewhat wrinkled in 

 front of the tumid part ; disc convex, vertical at the base. 8cutellum finely punc- 

 tulated. Elytra minutelj- and rather sparingly punctulated, with the interstices 

 much larger than the punctures, and with faint transverse rugosities here and there. 

 Body beneath extremely finely punctured, clothed with a short silvery grey 

 pubescence, punctuation of the femora coarser. 



llab. (iold Coast. 



