Species of Histeudx. 419 



over the liiiid coxa? ; the propygidium transversely punctured, 

 impressed slightly on either side ; the pygidium is evenly but 

 not thickly punctate, with the outer margin moderately 

 elevated; the anterior tibiae are 4-dentate, the tooth nearest 

 the base being very small. 



Hab. Martapura, S.E. Borneo (DohertT/, 1891). 



Platylister andamanensis, sp. n. 



Oblongo-ovatus, depressus, niger, nitidus, minutissime punctulatus ; 

 fronte excavata ; pronoto stria laterali valide impressa in medio 

 sinuata ; elytris striis l^-S'" integris, 4-" dimidiata, 5* ultra medium 

 abbreviata ; propygidio pygidioque punctatis. 



L. 3| mill. 



Oblong-oval, depressed, black, shining, surface microsco- 

 pically punctulate ; the forehead and epistoma deeply exca- 

 vated, stria complete and feebly sinuous in front ; the thorax 

 — lateral stria strong, like that of Platysoma Gonfucii^ Mars., 

 but more sinuous in the middle, anteriorly the stria is feebly 

 crenulate and obscurely interrupted behind the eye, and again 

 more clearly but narrowly in the middle ; the elytra — stride 

 1-3 complete, 4 apical, reaching the middle, 5 a little longer 

 and for half its length it bends slightly away from the suture ; 

 the propygidium punctured throughout, punctures largest at 

 the sides and of a smaller grade in the middle ; the pygidium 

 evenly punctate, punctures rather closely set, impressed on 

 each side, with the posterior margin moderately raised ; the 

 prosternum — lobe punctured evenly with rather small points, 

 with an arched lateral stria like that of Platysoma Gonfaciiy 

 Mars., keel and the surface of the other sternal plates with 

 very fine punctures, evenly but widely set, without a marginal 

 stria ; the mesosternum rather widely emarginate, stria com- 

 plete and formed like that of P. Confucii^ Mars. ; the anterior 

 tibiee 4-dentate. 



Hab. Andaman Islands {Rcepestorf) . 



Platysoma persimiUj sp. n. 



Oblougo-ovatum,8ubdepres8um, nigrum, nitidum ; fronte impunctata; 

 pronoto lajvi, stria antice interrupta ; elytris striis l*-3'" integris, 

 4''-5'' apicalibus ; pygidio impunctato ; mesosterno antice baud 

 striato. 



L. 4 miU. 



Oblong-oval, black, shining ; the head impunctate, frontal 

 atria complete; the thorax — lateral stria deep and feebly 

 sinuous near the middle, anteriorly interrupted behind the 

 neck ; the elytra — striae 1-3 complete, 4-5 apical ; the propy- 



31* 



