364 On new Species q/Histeridge. 



Cylindrical, rather elongate, pltcliy brown, shining' ; the 

 head, vertex minutely strigose, with a few irregular shallow 

 punctures and a small median fovea, face somewhat narrow, 

 flat, and irregularly punctulate, with a marginal three-sided 

 carina, carina straight at the base, gradually converging 

 anteriorly, and terminating in a somewhat acute raised tip ; 

 the thorax striate laterally, margin anterioi'ly a little wide, 

 but before the middle the thoracic edge is cut out somewhat 

 abruptly at the expense of the margin ; this incision or 

 sinuosity admits of the intermediate tibia? being moved in a 

 narrow cylindrical gallery, and the stria now running close 

 to the edge continues to the basal angle, surface distinctly 

 and somewhat closely punctured, behind the neck is a short 

 median carina, but the thorax is not impressed, anterior 

 angles reddish ; the elytra more finely and more sparsely 

 punctured than the thorax ; the propygidium and pygidiuin 

 densely punctured, the latter a little convex ; the prosternum 

 laterally sulcate, sulci shortened a little anteriorly ; the 

 raesosternum rather widely sulcate on either side ; the meta- 

 sternum is longitudinally canaliculate, all the sternal plates 

 are punctured ; the anterior tibite 5-dentate. 



I do not know the female. 



The form of the thoracic maro-iu noticed above is seen 

 more or less distinctly in Tn/peticus indica, hombacia^ and 

 planisternus, Lew., but it is not such a marked character as 

 in T. mustelinus. 



Hah. Sumatra. 



Pygoccelis, Lewis. 



In this genus I find what I believe is a sexual character ; 

 in some additional specimens I have acquired of P. africanus, 

 Lew., the middle of the pygidium is concave, not the whole 

 of the surface. It appears as though the external margins 

 were greatly thickened. 



Trypobius, Schmidt. 



In the three species of the above genus noticed in the 

 Ann. & Mag. Nat. Hist., Aug. 1897, p. 195, the sinuosities 

 in the thoracic margin are in the reverse position to those 

 seen in Trjjpeticus mustelinus &c. It is the anterior part of 

 the margin which is lost in Trijpohius^ and in Trypeticas it is 

 the basal portion. 



This difference is doubtless of great generic importance. 



