160 Mr. G. Lewis on 



apically, and almost evanescent in the middle, second more 

 distinct and complete, third widely interrupted in the middle; 

 the propygidium is transversely punctate ; the pygidium is 

 laterally depressed, convex in the middle, punctures clear and 

 well-defined within the depressions, fine and less close on the 

 convex area ; the prosternum is smooth and bistriate, strioe 

 feebly sinuous and not quite reaching the base; the meso- 

 sternum is widely emarginate and has no anterior stria ; the 

 anterior tibiae 5-dentate. 



The species in size and outline resembles a small specimen 

 of Platysoma ovatum, Er., but the thoracic stria and the form 

 of the sterna are similar to Apobletes fossistoma, Mars. 



Bab. Usarnbara, East Africa. 



Platysoma pinnigerum, sp. n. 



Elongatum, subparallelurn, convexum, nigrum, nitidum ; fronte 

 impressa, stria integra, pronoto disco bipunctato, stria marginali 

 lateralibus valida, autico integra, basi in medio vix interrupta ; 

 elytris striis 1-3 integris, 4-5 dimidiatis ; propygidio pygidioque 

 planis, punctatis ; prosterno angustato haud striato ; mesosterno 

 emarginato, stria marginali integra ; tibiis late dilatatis. 



L. 1\ mill. 



Elongate, somewhat parallel, convex, black and shining ; 

 the head smooth, stria well-marked over the eyes, complete 

 anteriorly, but fine and irregular, sinuous in the middle, im- 

 pressed anteriorly ; the thorax, marginal stria strong at the 

 sides, fine but complete behind the head, and at the base it is 

 continued until it is narrowly interrupted before the scutel- 

 lum, on the disk are two small but very distinct punctures, 

 •which with the antescutellar point form a triangular arrange- 

 ment, thus — v ; the elytra, the epipleural stria; are carini- 

 forrn and complete, humeral short, fine, and oblique, striaj 1—3 

 strong and complete, 4 apical and dimidiate, 5 similar but a 

 little shorter ; the propygidium and pygidium are flat and 

 rather densely punctate ; the prosternum impunctate, keel 

 narrow except at the base; the mesosternum emarginate 

 anteriorly, marginal stria complete and well defined; the 

 tibia? are all greatly dilated, anterior pair 4-dentate, inter- 

 mediate and posterior 4-spinose. 



Platysoma palmipes, Lew., and P. extrarium, Lew., are 

 somewhat similar to the species above, but they are less elon- 

 gate. In P. palmipes the tarsi are short, but in P. extrarium 

 and P. pinnigerum they are of normal length and not very 

 dissimilar to those of P. ovatum, Er. 

 Hab. Lawang, East Java. 



