New Species of Staphylinidae from Singapore. 371 



shallow emargination ; 5th with a 

 moderately broad, nearly semi- cir- 

 cular excision in the middle of the 

 posterior border .... brev4ce])sFsi\iv. 

 — Antennae longer, the 9th and 10th joints 

 not transverse; thorax narrower, 

 species larger. (J : 7th ventral segment 

 with a deep obtusely pointed excision, 

 6th with a small obtuse excision . (20) obliqna Cam. 



Stilicus Lat. 

 1. Ferruginous red, dull, elytra testaceous, 

 shining, with a small brown spot on 

 the reflexed margin at the middle, 

 ■ and a larger one on the disc posteriorly 

 on either side of the suture ; abdomen 

 pitchy with cojiper reflex, sericeous . ocularis Fauv. 



Psilotrachelus Kr. 

 1. Black, head shining, moderately finely 

 and closely punctured; thorax dull, 

 closely granulate, with median shining 

 keel ; elytra with large punctures more 

 or less in rows, the interspaces finely 

 granulate. Antennae and legs reddish- 

 brown. Length 4-5 mm. . . . crassus Kr. 



Thinocharis Kr. 



1. Head transverse, subquadrate. 2. 

 ^ Head not transverse, subovate . . j)y9'*^(^^^ Kr. 



2. Species of darker colour; elytra more 



closely and distinctly punctured . (22) nigricans Cam. 



— Species of lighter colour; elytra more 



sparingly and less distinctly punctured carinicoUis Kr. 



Acanthoglossa Kr. 

 1. Reddish-brown, clothed with long erect 

 yellow pubescence; head and thorax 



closely punctured .... 



Medon Steph. 

 Base of the abdomen keeled below. Eyes 



moderate or small. 

 Base of the abdomen not keeled below. 



Eyes large. 



hirta Kr. 



