226 Mr. G. Lewis on 



PJatysoma sulcisternum, sp. n. 



Obion go-ovatum, depressiusculum, nigrum, nitidum ; fronte punctii- 

 lata, stria utrinque semicirculari ; pronoto stria integra ; elytris 

 etriis 1-3 integris, 4 vix dimidiata ; pygidio convexo, punctulato ; 

 prosterno lobo anteriori utrinque sulcato ; mesosterno mar- 

 ginato ; tibiis anticis 5-dentatis. 



L. ^-^ mill. 



Obloi\i^-oval, rather depressed, black and sliining; the 

 head is impressed in the middle behind the clypeus, labrum 

 narrowly transverse, with the suture angulate in the middle, 

 surface punctulate, stria sometimes broken (when complete it 

 is transversely bent towards the neck) and is semicircular 

 over the eyes ; the thorax is also punctulate, arched at the 

 sides, stria complete and formed laterally like that of P. con- 

 fucii, Mars., but the margin is less broad ; the elytra, oblique 

 humeral stria very fine, humeral and subhumeral wanting, 

 1-3 dorsal complete, 4 apical, straight, and nearly reaching 

 the middle, the rest wanting; the propygidium and pygidium 

 are distinctly but not very densely punctulate, the latter is 

 convex and without a rim ; the prosternum, anterior lobe 

 punctulate, with a well-marked rather deep stria or sulcus on 

 either side, leaving a fairly wide margin (fig. 1) ; the keel 



Fis:. 1. 



Platysoma sulcisternum, Lew. 



appears impunctate except under the microscope ; the meso- 

 sternum is sinuous behind the keel, with a sinuous stria which 

 at the lateral angles is somewhat distant from the edge ; the 

 anterior tibias are 5-dentate. 



In its general outline this species agrees best with P. com- 

 pletum, Mars., especially in the shape of the thorax, but it is 

 more oblong and less convex. 



Hah. Sydney, Australia {A. M. Lea). Six examples. 



Phelister tllustris, sp. n. 



Ovalis, convexus, subtus cyaneo-niger, nitidus ; fronte leviter exca- 

 vata, stria late interrupta ; pronoto etria marginali integra, 



