new Species o/'IIisteridoe. 345 



punctured ; the mesosternum is widely and feebly craar- 

 ginate, stria complete, but not easy to see behind the emar- 

 gination, as the sternum is depressed at that part, at the sides 

 it is strong and straight; the metasternum, laterally bistriate, 

 8tria3 oblique and parallel to each other ; tiie anterior tibite 

 are 4-dentate. 



This species also belongs to Cylistix, and in one of its 

 characters, namely the proximity of the metasternal strias, it 

 resembles C. ct/Iindn'ca, Payk., more than C. asiatica. 



Hah. Siam (Renong). One example. 



Pachycrcerus violaceipenm's, Lew., 1891, 

 = P. ritsemcBj ilars. 



I find now that I was in error in regard to this species. I 

 was misled by Marseul's description of the frontal stride. It 

 seems to me that there are two strite, but Marseul calls one a 

 suture : perhaps his example was somewhat abraded. 



Psiloscelis Umatulus, sp. n. 



Oblongo-ovalis, niger, nitidus, supra punctulatus ; fronto foveolata ; 



elj'tris striis integris, 5* suturalique antice conjunctis. 

 L. ^ miU. 



Oval-oblong, rather convex, black, shining; finely and some- 

 what densely punctured above ; the forehead longitudinally 

 foveolate, stria complete, straight in front, angulate behind 

 the mandibles ; the thorax with four feeble impressions, two 

 on each side, two fine marginal stride, one of which continues 

 behind the head, and well within the margin is an internal 

 stria very slightly abbreviated at both ends, leaving a wide 

 interstice in front, whicli gradually narrows towards the pos- 

 terior angle ; the elytra, stride 1-4 complete, fifth and sutural 

 also complete and joined at the base ; the propygidium and 

 pygidium are densely punctured, with some very fine points 

 iDetween the larger ones ; the presternum, keel narrow in 

 front, widening out triangularly at the base, margined late- 

 rally with a fine clearly marked stria ; the mesosternum is 

 truncate anteriorly, with a fine marginal stria ; the sternal 

 plates and first segment of the abdomen are more finely punc- 

 tured than the upper surface ; the anterior tibiae are 6-7- 

 dentate. 



This species is smaller than P. Castelnaudi, Mars., and 

 differs in three essential points, viz. the forehead has a deep 

 fovea, the thorax has an internal lateral stria, and the fifth 

 and sutural elytral stride join at the base. 



}lah. Assam (Patkai Mountains). One example. 



