298 BKACHELYTKA — STENIDAE. 



1, Head rather broader than thorax. 

 Disc of thorax with two oblique depressions. 



A A, Elytra as long as thorax. 



Black, rather shiny; palpi and antennae yellow, latter 

 with first j(nnt pitch-brown and club l)rownish ; coxae and 

 apex of femora blackish, tarsi short, first joint rather longer 

 than second, third almost triangular, L. If 1. Not com- 

 mon. S. hrevicornis, Th. 



JB JB. Elytra somewhat longer than thorax. 



a a. Antennae (including first joint) yellow, 

 with bro\\'nish club ; body shiny. 



Black, puliescence thin ; palpi yellow ; knees pitch- 

 brown, tarsi short and broad. Elytra pitchy in fresh 

 specimens. L. 2 1. Moderately common. 



S. 2J'ici2)en7iis, Er. 



b h. Antennae reddish-yellow, with first joint 

 pitch-black, and club brownish ; body only 

 moderately shiny. 



Leaden-black; palpi reddish-yellow; knees blackish; 

 tarsi short, first joint equal in length to second, third joint 

 triangular. L. 2 1. Common. S. rusticus, Er. 



2, Head about half as broad again as thorax. 



A A, Thorax broadest rather before middle. 



a a. Antennae with at least the ndddle red- 

 yellow. 



A a. Thorax with two oblique depressions 

 but no central furrow. 



Apterous. Shiny, l)lack, pubescence thin; palpi and 

 antennae yellow, first joint of latter pitch-black ; coxae 

 black, knees brown, tarsi short and broad. L. 2-?j 1. Com- 

 mon. S. temjjesiivus, Er. 



2? &. Thorax with a more or less distinct 

 central furrow. 



A J. Maxillary palpi blackish, with first 

 joint and base of second joint yellow, 



a 1. Femora blackish from middle ; 

 apex of tibiae and tarsi yellowish. 



Bronzy-black, rather shiny ; antennae brownish, with 



