New Species of Staphylinidae from Singapore. 263 



fine, distinct and close. Antcmiae entirely dark, the 3rd joint 

 distinctly shorter than the 2nd, the 4th to the 10th transverse, 

 gradually increasing in breadth, the penultimate nearly twice as 

 broad as long, the lltli as long as the two preceding together. 

 Thorax one-third as broad again as long, the sides with two or three 

 distinct setae, closely, asperately and for a small species rather 

 coarsely punctured. Elytra as long as, but a little broader than 

 the thorax, transverse and similarly j^unctured. Abdomen dis- 

 tinctly narrowed posteriorly, finely and pretty closely punctured 

 and pubescent throughout, but rather more sparingly behind ; sides 

 and apex setiferous. Middle tibiae with two long setae, posterior 

 tibiae with a single long seta. 



In build somewhat resembling A. canescens Slip., but 

 much more shining, puncturation coarser, thorax narrower 

 and penultimate joints of the antennae more transverse. 



Hab. District not noted ; in dung. 



120. Atheta (Datoniicra) mycetophila, n. sp. 



Pitchy, rather shining, the thorax and more or less of the base 

 of the elytra pitchy-red ; the abdomen reddish-testaceous, the sixth 

 segment pitchy; first two joints of the antennae, mouth-parts and 

 legs, testaceous. Length 1 mm. 



Head pitchy-black, transverse, exceedingly finely and rather 

 closely punctured; the eyes large, their diameter much greater 

 than the length of the temples. Antennae with the 3rd joint 

 shorter than the 2nd, the 4th to the 10th transverse, gradually 

 increasing in breadtli, the penultimate about twice as broad as 

 long, the 11th elongate gradually pointed. Thorax rather shining 

 pitchy-i'ed, about half as broad again as long, the posterior angles 

 rounded; disc with an obsolete longitudinal impression before the 

 scutellum, each side with two distinct setae; puncturation exceed- 

 ingly fine and close; pubescence fine. Elytra pitchy- black, 

 obscurely reddish towards the base, scarcely longer, but a, little 

 broader than tlie thorax, transverse, exceedingly finely, closely and 

 rather asperately punctured, finely pubescent; posterior border 

 not sinuate. Abdomen distinctly narrowed posteriorly, very finely 

 and sparingly punctured, the seventh and eighth segments nearly 

 impunctate; sides and apex setiferous. Middle tibiae with two 

 distinct setae, posterior with a rather weak seta. Facies somewhat 

 of a minute cmda Er. 



Hah. Sembawang, in rotting fungus. 



