86 Wr. (J. Lewis on 



Tribalus cavernicola, Lewis, 1D08. 



Ovalis, Bupra subdepressus, Rubseneue, nitidua ; fronte concava, 

 supra oculos elevata, fere Isevia ; pronoto basi transversim im- 

 presso ; elytris striis obsoletis ; prosterno striis utrinque diver- 

 geutibus ; antennis pedibusque obscure brunneis, 



L. 3 mill. 



Oval, somewhat depressed above, brassy, shining; the 

 head, concave anteriorly "with lateral margins elevated, 

 surface almost impunctate ; the thorax is evenly, finely, and 

 rather closely punctulate, marginal stria complete, along 

 the middle of the basal edge there is a narrow transverse 

 rngose impression ; the elytra, doi^sal strise short, oblique, and 

 ill-defined, disc and the pygidia are almost smooth ; the 

 prosternum, lobe marginate, clearly punctured and micro- 

 scopically strigose, strice divergent before and behind, keel 

 lightly sculptured ; the mesosternum, marginal stria very 

 fine and interrupted in the middle, evenly, sparingly, and 

 very minutely punctulate, transverse stria well-marked with 

 sixteen crenellations ; the antennse pale brown, legs 

 obscurely brownish. 



Similar in form and colour to T. capensis, Payk., but the 

 surface sculpture of Paykull's species is densely punctulate. 



Hab. Usambara; Tanga, in the Mkulumusi caves. 



Peloi'urus fe(S, Lewis, 1906. 



Breviter ovalis, nigro-cupreus, nitidus; elytris viridi-cseruleis ; fronte 

 obscure punctulata, antice impressa ; pronoto lateribus piinctato ; 

 elytris striis profundis, 1-3 geminatis integris, 4 suturalique 

 integris simplicibus ; prosterno striis lateribus interruptis et inter 

 cosas minute foveolato ; tibiis anticis denticulatis. 



L. ^-^ mill. 



Shortly oval, almost black beneath, thorax coppery, elytra 

 greenish blue ; the head impressed behind the clypeus, 

 surface finely punctulate with a lateral stria; the thorax, 

 marginal stria complete, punctured laterally, basal edge 

 punctured, especially opposite the second, third, and fourth 

 strise; the elytra, strise deep and strong and somewhat 

 punctate, 1-3 complete and double, 4 complete but single, 

 also the sutural, in one example of three there is a short 

 apical oblique fifth stria ; the propygidium is finely and on 

 the disc and base very sparingly punctured ; the pygidium 

 is compressed, except at the base, which is impunctate and 

 like that of P. cregoei, Lew., is on the same plane as the 

 propygidium ; the prosternum, the strise are broken at the 



