90 Dr. Malcolm Cameron on Staphylinidae from Singapore. 



of five or six punctures; no visible ground-sculpture. Scutellum 

 closely and rather coarsely punctured. Elytra copper-bronze, 

 longer than the thorax, a little longer than broad, less shining than 

 the fore-parts; coarsely and closely punctured as in O. cribratus. 

 Abdomen pitchy-black, margins of the segments obscurely and 

 narrowly reddish; moderately coarsely and somewhat thickly 

 punctured and pubescent, as in O. cribratus; ground -sculpture 

 distinct, transverse strigose. Under surface reddish-castaneous. 



Hab. Pasir Panjang, in seaweed. A single $. 



Quediini. 



44. Acylophorus rotundicollis, n. sp. 



Black, shining, abdomen iridescent. Thorax with strongly 

 rounded sides, the disc with a single puncture on either side of the 

 middle line. Femora and tarsi dark testaceous, the tibiae pitchy. 



Length 6-7 mm. 



Very similar in general appearance to A. glaberrimus, 

 Herbst., of Enrope, but differs as follows : the head is 

 much narrower, the disc has a very few very fine punc- 

 tures, and the temples are rather closely ' punctured ; the 

 antennae are less stout, but of similar build ; the thorax 

 is broader, with more strongly rounded sides, and the disc 

 has a single large puncture on either side of the middle 

 line and a very minute one towards the anterior angles ; 

 the elytra are transverse, shorter and a little more coarsely 

 punctured ; the abdomen is distinctly iridescent and less 

 finely punctured ; and the legs are lighter. 



Hab. Bukit Timah. 



Found in flood debris. 



(To be continued.) 



