New Species of Staphylinidae from Singapore. 73 



Closely resembling the preceding, S. obliqua, from which it is 

 distinguished by its smaller size, less robust build, and more shining 

 appearance ; the base of the thorax broader, the sides not so strongly 

 contracted, the disc slightly impressed throughout in the middle 

 line; the elytra a little loss deeply punctured; the male-characters 

 also different. 



,j. Seventh ventral segment with a deep, acute, triangular exci- 

 sion, and the sixth segment with a minute notch, at the middle of 

 the posterior margin; metasternum in the middle in front of the 

 posterior coxae with a. large, thickly punctured and pubescent 



impression extending nearly to the middle coxae. 



i 



Hab. Bukit Timah, in debris. A single $. 

 22. Thinocharis nigricans, n. sp. 



Moderately shining, densely and finely punctured; pitchy black, 

 head square, thorax pitchy-brown; antennae, palpi and legs 

 testaceous. Length 225 mm. 



Smaller and narrower than T. carinicollis, Kr., and differently 

 coloured. Head as broad as long, quadrate, eyes small; temples 

 long, scarcely dilated, gradually passing into the rounded posterior 

 angles ; base scarcely emarginate ; puncturation very close and line, 

 much closer and finer than in T. carinicollis, Kr. Antennae with the 

 first two joints much thicker than the following, the 3rd to the 6th 

 longer than broad, subequal, 7th a little shorter than the 6th, 8th 

 to 10th short, scarcely longer than broad, 1 1th oblong-ovate. Thorax 

 pitchy-brown, narrower than in T. carinicollis, Kr., slightly longer 

 than broad, scarcely as wide as the head; anterior angles more 

 rounded than in T. carinicollis, Kr. ; disc with a narrow elevated line 

 posteriorly, which is finely grooved, obsoletely impressed on either 

 side; puncturation and pubescence similar to that of the head. 

 Elytra black, a little longer than the thorax, parallel, longer than 

 broad, densely and finely punctured and pubescent. Abdomen 

 black, apex of last segment brown, closely and finely punctured and 

 pubescent, but much less so than the fore-parts. 



Hab. Bukit Timah, in debris. 



23. Medon (s. str.) rubicundus, n. sp. 



Shining, rufous, elytra testaceous, with the base and a variable 

 extent of the disc pitchy; abdomen pitchy-red, the sixth and seventh 

 segments broadly reddish-testaceous posteriorly; antennae, palpi, 

 and legs reddish-testaceous. Length 4 mm. 



