STENUS. 299 



first unci second joints blackish and third red-yellow ; 

 apical half of femora and base of tibiae blackish, rest of 

 tibiae and tarsi yellowish ; first tarsal joint very elongate. 

 Frontal furrows almost effaced ; punctuation of fore parts 

 close and strong, that of abdomen not very close, stronger 

 at base than at apex. L. 2^ 1. Not uncommon. 



>S'. suhaeneus, Er. 



hi. Femora yellowish - brown until 

 beyond middle ; apex of tibiae red- 

 brown, tarsi black-brown. 



Similar to ;S'. sutacneus, but with less bronze reflection, 

 punctuation closer and rather fine, abdomen closely and 

 evenly punctured throughout ; antennae rather shorter, red- 

 brown in middle ; knees black. L. 2-| 1. Eatlier common. 



>S'. imioressipennis, Duv. 



li 1. Maxillary palpi yellow, with third 

 joint brown, either entirely or at apex. 



a 1, Thorax distinctly longer than 

 broad. 



Elongate. Blackish, not very shiny ; third joint of palpi 

 brownish at apex only ; antennae and legs yellow, former 

 with first joint and base of second pitch-brown, club 

 brownish ; coxae pitch-brown, knees brownish, tarsi slender, 

 third joint simple. Frontal furrows broad and rather 

 shallow. L. 2 1. Not common. S. geniculatus, Gr. 



b 1. Thorax about as long as broad. 



Black, rather shiny ; antennae yellow, with first joint 

 pitch-brown and cluli brownish ; coxae pitch-black, apical 

 half of femora and nearly whole of tibiae brown, third tarsal 

 joint scarcely longer than liroad. Frontal furrows broad 

 and rather deep. L. If 1. Common. S. ])alustris,'¥A:. 



CI, Maxillary palpi entirely red-yellow, 

 a 1, Pubescence long and loose. 



Dark bronze-black, shiny ; antennae very long, hairy, 

 reddish, first joint dark brown at apex, third joint double 

 as long as fourth ; legs slender, apex of intermediate and 

 half of posterior femora pitch-brown, tarsi narrow, fourth 

 joint small. Punctuation very strong. Frontal furrows 

 broad and deep. L. 2^ 1. A specimen taken on the 

 Cheviots. S. glacialis, Heer. 



DARLINGTON 

 PUBLIC LI3RAFtY. 



