new Species of Histeridae. 177 



sternum with a wide and feeble emargination and complete 

 well-marked marginal striae. 



In facies very similar to P. Dufali, Mars., but broader 

 and more robust ; and it is also like P. scitulum, Lew., in the 

 detached, but interrupted in P. chinense, stria behind the 

 neck. 



Hob. Chefoo. Three examples. 



Platysoma quadricolle, sp. n. 



Oblongum, parallelum, depressum, nigrum, nitidum ; fronte im- 

 pressa ad oculos striata ; pronoto quadrato, stria laterali anterius 

 integra ; elytris striis l a abbreviata, 2 a -4 m Integra, 5 a -6 a dimidiatis ; 

 pygidio utrinque valde impresso ; prosterno bistriato, striis anticis 

 divergentibus ; tibiis anticis 4-dentatis. 



L. 3f mill. 



Oblong, parallel at the sides, depressed, black, and shining, 

 legs and antennas pitchy red ; the head impressed anteriorly, 

 striate over the eyes only, clypeus markedly distinct, finely, 

 not very thickly, punctulate ; the thorax as wide anteriorly as 

 behind, straight at the sides, marginal stria fine and complete 

 behind the head, and behind the eyes there is an area of fine 

 punctures, but the disk, base, and lateral margin are smooth ; 

 the elytra, striae fine and feebly crenulate, 1 shortened 

 apically, 2-4 complete, 5 apical but reaching beyond the 

 middle, 6 rather shorter and oblique, interstice between it 

 and the suture widest behind ; the propygidium distinctly 

 punctured except on the posterior edge ; the pygidium simi- 

 larly punctured, slightly convex in the middle, lateral edges 

 raised, with a well-marked canaliculation within them ; the 

 presternum bistriate, strise diverging in front of the coxae, . 

 joining at the base, but anteriorly scarcely reaching the 

 suture, anterior lobe immarginate and sparsely punctured ; the 

 mesosternum emarginate almost from angle to angle, marginal 

 stria feebly interrupted in the middle. 



More elongate and relatively narrower than P. oblongum, 

 Fabr. ; the thorax is quadrate and very widely cut out to 

 receive the head. 



Hab. Madagascar. Without precise locality. 



Cypturus assamensis, sp. n. 



Ovalis, convexus, niger, subtiliter punctulatus ; fronte punctata ; 

 elytris, striis l a -4 m integris, 5 a dimidiata, suturali utrinque abbre- 

 viata ; prosterno distincte punctato. 



L. U-5 mill. 



Oval, convex, black, shining, with a fine punctuation 



