New Species of Staphylinidae from Singapore. 235 



a little beyond the posterior angles of the throax, all the joints 

 longer than broad, the penultimate compressed laterally, the 2nd 

 joint shorter than the 3rd, the 3rd and 4th of equal length, the 5th 

 to the 10th gradually decreasing in length, the 1 1th long oval, longer 

 than the 10th. Thorax pitchy-brown, the posterior angles testaceous 

 yellow, very finely and moderately closely punctured ; pubescence 

 fine, griseous. Elytra a little shorter than the thorax, pitchy-brown, 

 with a large round yellow spot at the middle of the base of each; 

 puncturation similar to that of the thorax, the pubescence golden 

 yellow on the spots, otherwise griseous. Abdomen pitchy-brown, 

 shining; the posterior margins of the segments testaceous, except 

 t lie last which is pitchy; puncturation and pubescence very tine and 

 close ; lateral and apical setae black ; eighth dorsal segment divided 

 into four long triangular processes by three triangular excisions. 



Hub. Bukit Timah, in rotten logs. Two specimens. 



49. Conosoma abdominale, n. sp. 



Black, shining, the abdomen ferruginous red; the first four joints 

 of the antennae and the apical half of the last and the legs, testaceous 

 yellow. Length 2"8 mm. 



A shining, sparingly pubescent species, somewhat resembling in 

 build ( '. immaculatum, Steph., but much more shining, blacker, rather 

 broader and more convex, and with much longer antennae. Head 

 black, shining, with a few scarcely visible punctures, almost glabrous. 

 Antennae extending a little beyond the posterior angles of the thorax, 

 the 2nd, 3rd and 4th joints elongate, subequal, the 5th to the 10th 

 compressed, the first of them a little longer than broad, the rest sub- 

 equal, scarcely longer than broad, the 11th oval oblong, nearly as 

 long as the two preceding together. Thorax black and shining, the 

 posterior margin narrowly ferruginous (by transparency); punctura- 

 tion very fine and not close, and in addition there are a very few 

 larger, superficial punctures visible; pubescence sparing, griseous, 

 very short and fine. Elytra transverse, as long as the thorax ; punc- 

 turation and pubescence as on the latter, and with a few larger 

 superficial punctures of irregular distribution; ground-sculpture 

 fine and imbricate ; sides without long setae. Abdomen ferruginous, 

 the anterior segments with similar puncturation, ground-sculpture 

 and pubescence to that of the elytra, the posterior segments much less 

 distinctly punctured; sides and apex with long black setae; eighth 

 dorsal segment with a deep, nearly parallel-sided excision. 



Hab. Mandai, in debris. One specimen. 



