New Species of Staphylinidae from Singapore. 237 



Hah. Woodlands, Bukit Panjang and Bukit Timah, in 

 old logs. 



52. Conosoma perplexum, n. sp. 



Reddish- testaceous, shining; the antennae pale testaceous, the 

 oth to the 10th joints infuscate; the elytra obscurely infuscate 

 posteriorly. Legs pale reddish- testaceous. Length 2*3 nun. 



Of the build of C. suave, Fauv., but a trifle larger, the antennae 

 distinctly longer and differently coloured, the thorax without mark- 

 ings. Antennae extending a little beyond the posterior angles of 

 the throax, the 2nd and 3rd joints elongate, of equal length, the 4th 

 a little shorter than the 3rd, 5th to 10th subtriangular, compressed 

 laterally, subequal. scarcely longer than broad, the 11th long, oval, 

 considerably longer than the 10th. Thorax very finely and not very 

 closely punctured : pubescence fine and yellow. Elytra a little longer 

 than the thorax, slightly narrowed behind, with puncturation and 

 pubescence as on the thorax; ground-sculpture very fine, feebly 

 imbricate ; towards the apex (but not reaching the posterior border), 

 an indeterminate fuscous cloud is perceptible in certain lights. 

 Abdomen exceedingly finely and sparingly punctured, especially 

 posteriori}^ ; ground-sculpture exceedingly fine and feebly imbricate ; 

 sides and apex setose; eighth dorsal segment divided into four 

 triangular processes by three triangular excisions. 



Hab. Bukit Panjang, in rotten wood. One specimen. 



53. Conosoma nigromacuiatum, n. sp. 



Reddish-testaceous, shining, a subtriangular spol on either side 

 of the middle of the base of the thorax, a transverse patch nearly 

 reaching the lateral margins of the elytra externally, and the suture 

 internally, and the Oth to 10th joints of the antennae black. Sides 

 of the elytra each with six long setae. Length 2 mm. 



Exactly of the build, and almost of the colour, of C. snare, Fauv., 

 the head, however, is clear reddish-testaceous, the antennae are 

 shorter and differently coloured, with the 7th to 10th joints dis- 

 tinctly transverse, the elytra are rather longer than the thorax, and 

 furnished with long setae at the sides, and the 5th abdominal seg- 

 ment is scarcely infuscate. The antennae do not extend to the 

 posterior angles of the thorax, the 3rd joint is shorter than the 2nd, 

 the 4th scarcely longer than broad, the 5th as long as broad, stouter 

 than the 4th, the 6th scarcely transverse, the 7th to the 10th dis- 

 tinctly transverse, 11th, stout, short, oval. Thorax very finely and 

 not very closely punctured; pubescence line golden yellow; on 

 either side of the middle line at the base is an indeterminate, more 



