( 169 ) 



Length, 17 mm. ; elytra, 12 mm. ; breadth, 6i mm. 

 Ilab. Benito, French Uougo. 

 One ¥. 



The species of Poimenesperus, which are all West African, can be distin- 

 guished from one another as I'oUows : 



a. Antenna pale tawny, except proximal segments . . ■ b. 



„ black or olive-brown .....■• d- 



b. Disc of prothorax strongly rngate and grooved ; 



prosternal jirocess conical, long . . . I', p/irpietoides (ISQ'i) 



Jord., Nov. ZooL. i. p. 211 (Kniln). 

 Disc of the jirothorax not rugate ....■■ c. 



c. Third segment of antenna not obviously longer than 



fourth. Elytra densely marmorated with blue- 

 grey ; two transverse black bauds, the first 



interrujited P- marmomtiis (1804) 



Jord., I.e. (Kuiln). 

 Third segment of antenna much longer than fourth, 

 buff at base and top. Side-sjiine of pronotum 

 longer than in ■marmorattis. Elytra with five 

 undulating blue-grey bands, the second and 

 third connected at suture, the last produced to 

 apex at suture. Prosternal process higher than 

 in marmoratus, upper edge straight ; meso- 

 sternal process very high, arched, somewhat 



beak-like . " -P. dobraei (1886) 



Waterh., Ann. Ma<j. .Y. //. (5). vii. p. 409 (Gabun). 



d. Ui)perside black and vinaceous cinnamon, or black 



and olive hazel-brown .......«• 



Upjierside black and white or blue-grey . . . • . /^ 



e. Elytra irregularly marmorated . . . . • • J- 



„ with three sharply defined bands . . ■ • • 9- 

 J'. Pronotum with a transverse line at base and at 

 apex. Process of prosternnm not obviously 

 higher than coxae, transversely cariniform, 

 mesosternal process broad and projecting, edge 

 rounded in view from anal side. Underside 



black and buft' F.fukomannorata.'s 



(1894) Jord. I.e. i. p. 21U (Congo). 



Disc of prothorax marked with olive hazel-brown 



and black ; underside of body black-brown, 



spotted with white. Prosternal process higher 



than coxae ; mesosternal one very high, almost 



vertical, conical, pointed P.celatina {lUb^) 



AVhite, Ann. May. N. If. (3). ii. p. 271 (Congo). 

 ff. Abdomen with sharply defined Idack side-patches, 

 frons with narrow yellowish grey mesial line ; 

 elytra with almost longitudinal apical lialf-moon- 

 shaped patch; mesosternal process high, conical P. cuUiiiMS spec. nov. 



