400 ^Ir. G. Lewis on 



lateral! interna antice bis interrupta, externa postice abbreviata ; 

 elytris striis 1-3 iutegris, 4 vix dimidiata, 5 postice vix punctis 

 indicata ; prosterno parce punctulato ; pvgidio parnm dense 

 punctulato, circum alte naarginato ; mesosterno stria marginali 

 late interrupta ; tibiis anticis 3-dentatis. 

 L. 12| mill, (absque mandibulis). 



Oval, somewhat convex, black and sliiiiing ; tlie head, 

 frontal stria very fine, almost evanescent in the middle ; tlie 

 thorax deeply foveolate behind tlie anterior angle, inner stria 

 broken near the eyes and widely interrupted behind the head, 

 external commences at the anterior angle and is not quite 

 dimidiate ; the elytra, strise, inner humeral dimidiate and 

 straight, 1-3 complete, 4 apical, not reaching the middle, 5 is 

 indicated by a few apical punctures; the propygidiura is 

 finely and sparsely punctulate ; the pygidium is much more 

 densely punctulate and its outer rim is markedly raised ; the 

 mesosterimm, marginal stria widely interrupted ; anterior 

 tibiae 3-dentate. 



This species is much less convex than P. cei/lanus, Mars,, 

 and the pygidium is more transverse, but it lias a similar 

 marginal rim. Another marked diflference is that the inner 

 thoracic lateral stria is relatively further from the edge. 



Ilab. Yunnan, China. 



Ficr. 3. Fig. 4. 



/^^o^ 



Fig. 3. — Sptlodiscus arcuatus, Sav. 

 Fig. 4. — Orammostet/ius sodalis, Lew. 



GrammoSTETHUS, gen. nov. 



Body oval or shortly oval, convex ; head, funiculus of the 

 antenna not widening out behind, the club is similar to that 

 figured for II. merdarius in ^larseuPs monograph, labruni 

 length and breadth nearly equal, mandibles somewiiat loin'- 

 and convex above, frontal stria well marked, semicircular or 

 bowed in outline ; thorax with one lateral stria strong and 

 complete, usually somewhat sinuous, antennal fossa in the 

 anterior angle, almost circular and oj)en to view below; elytra, 

 fourth dorsal stria with a detached basal, appendage ; pro- 

 sternum bistriate ; mesosternum, anterior edge feebly sinuous 

 or nearly truncate; anterior tibia with many small denticles. 



The S[)ecies are IJister rKjicornis, Grimm. ; navus, sterco- 

 riger, Mars.; fractisirius, fragosus, gentilis, trnpigcr^ indicus, 



