New Species of Stapkylinidae from Singapore. 393 



Amaurodera Fauv. 

 1. Head and elytra shining, brown, very 

 finely and sparingly punctured, thorax 

 reddish- brown, opaque, strongly 

 shagreened ; 2nd to 4th segments of 

 the abdomen testaceous, the rest 

 black ...... veluUcolUs Motsch. 



Eusteniamorpha Cam. 

 1. Rufo-castaneous, moderately shining, the 

 6th abdominal segment pitchy-black ; 

 thorax and abdomen stronglj'^ con- 

 stricted at their base . . . (113) ?•«{/« Cam. 



Pelioptera Kr. 

 1. Antennae with the first three joints 

 reddish-testaceous. Species shining ; 

 size larger (2-2-75 mm.) , . . micans'Kv. 



— Antennae entirely dark. Species with 



greasy lustre only; size smaller 



(1-75 mm.) opaca Kr. 



Atheta Thorns. 



1. Abdomen more or less pointed j)osteriorIy. 12. 



— Abdomen parallel-sided. 2. 



2. Antennae with the penultimate joints not 



or scarcely transverse. 3. 



— Antennae with the penultimate joints 



distinctly transverse. 5. 



3. Abdomen glabrous; Species bright 



reddish-testaceous, the 5th, 6th and 

 anterior part of the 7th abdominal 

 segments black .... {\2\) niiriveiilrin C&va. 



— Abdomen finely and uniformly punctured. 4. 



4. Species dark; elytra uniformly pitchy- 



brown or pitchy-black . . . {\\5) alophila Cajva. 



— Species reddish; elytra pitchy, the base 



and apical margin testaceous; 5th, 

 6th and anterior part of the 7th 

 abdominal segments black . . (114) wo«<7to/ij Cam. 



5. 3rd joint of the antennae scarcely shorter 



than the 2nd; species larger (2-5 mm), dilulipennis Motsch. 



