New Species of Staphylinidae from Singapore. 83 



Thorax narrow and elongate, nearly half as long again as broad, 

 widest at the anterior angles, which are rounded, the sides but 

 slightly converging in a straight line to the posterior angles, which 

 pass insensibly into the base; puncturation as on the head, and 

 leaving a narrow impunctate median space throughout; sides with 

 a few tine setae ; pubescence fine and sparing. Scutellum triangular, 

 impunctate ; transversely strigose. Elytra pitchy-brown, lighter 

 about the suture, which is imbricate, as long as the thorax, and a 

 little longer than broad ; sparingly and finely punctured ; pubescence 

 fine, stiff, and griseous. Abdomen pitchy, the apex and posterior 

 margins of the segments narrowly lighter, very sparingly and finely 

 punctured; pubescence rather long, stiff, griseous. 



Hab. Bukit Panjang, in rotten logs. The specimens 

 examined do not appear to present any visible sexual 

 characters. 



35. Eulissus lateralis, n. sp. 



Black, shining, elytra and abdomen pitchy, the former obscurely 

 testaceous on the disc, the latter with the lateral margins clear 

 testaceous ; antennae, mouth-parts and legs reddish-testaceous, 

 the tibiae a little infuscate. Length 7 mm. 



A very distinct species, the lateral margins of the segments of 

 the abdomen being bright testaceous yellow. Head, black, shining, 

 subquadrate, the temples parallel, the posterior angles with a minute 

 tooth; median sulci parallel, extending to the same level as the 

 lateral ones, these passing backwards and slightly outwards, and 

 connected with a short oblique orbital furrow, the juncture being 

 marked with a large umbilicate puncture; temples bounded above 

 by a deep, rather broad furrow extending from the posterior margin 

 of the orbit to the posterior angles, the furrow provided with two 

 or three large umbilicate setiferous punctures; sculpture consisting 

 of larger and smaller, scattered and irregular punctures, the space 

 between the median sulci impunctate ; temples grooved longi- 

 tudinally; no visible ground-sculpture. Antennae short, the 

 2nd joint subequal to the 3rd, the 4th strongly transverse, as are 

 the following joints, which, however, do not increase in breadth 

 towards the apex, the 11th short, oval. Thorax formed as in E. 

 anaclwreta, Er., with three punctures on each side — one at the 

 anterior angles, one at the posterior angles and one on the anterior 

 margin — otherwise impunctate and without ground-sculpture. 

 Scutellum shining, with three or four somewhat asperate punctures. 

 Elytra as long as the thorax, longer than broad, pitchy, the posterior 

 two-thirds of the pleura and an indeterminate macula on each disc 



