STENUS. 297 



abdomen naiTOwly bordered. L. 2| 1. Common. 



S. hinotatns, Ljung. 



b b. Antennae red-yellow ; sixth abdominal 

 segment of male with a broad, deep, some- 

 what, semicircular notch. 



Similar to S. hinotatus but more robust ; antennae longer 

 and lighter coloured ; palpi rather more yellowish at base 

 of joints ; head and thorax wider ; elytra longer ; legs 

 stouter and punctuation finer and not so close. L. 3 1. 

 Eather common. 8. puhesce7is, Ste^jh. 



JB J3, Abdomen narrowed almost from base. 



Somewhat elongate and flat, not very shiny. Leaden- 

 black ; base of palpi and the antennae red-yellow, latter 

 with first joint black and the apex brown. Head as broad 

 as thorax, frontal furrows wide, their interstice convex ; 

 thorax with sides rounded, with two impressions behind 

 middle ; elytra as long as thorax, uneven ; pubescence 

 close, whitish ; punctuation close. Eather more shiny than 

 aS^. 2)uhescens, fore parts broader and antennae darker at Ijase. 

 L. 3 1. Eare. S. major, Muls. 



2. Maxillary palpi yellow, with or without apical 

 joint darker. 



A A. Thorax rather longer than broad, some- 

 what closely punctured ; frontal furrows shal- 

 low ; pubescence close. 



Leaden-black. Very similar to aS'. hinotatus, but rather 

 flatter ; antennae red-yellow (except first joint) ; tarsi 

 reddish-yellow, third joint bilobed. Punctuation rather 

 finer and shallower. L. 2| 1. Eather common. 



aS^. pallitarsis, Steph. 



jB S, Thorax scarcely longer than broad, only 

 moderately closely punctured ; frontal furrows 

 moderately deep ; pubescence thin. 



Flatter and less elongate than S. hinotatus. Black, rather 

 shiny; last joint of palpi brown ; antennae red-yellow, with 

 first joint blackish and club brown ; femora pitchy. Abdo- 

 men distinctly bordered. L. 2 1. Common. 



S. hifoveolatiis, Gyll. 



II, Legs yellowish or red-brown, with or without 

 darker coxae and knees. 



