PROTEINUS. 335 



longer elytra, which are more strongly punctured and have 

 shoulders generally brownish. L. 1 1. Connnon. 



P. brevicollis, Er. 



b. Antennae black, with first joint reddish-yellow. 



Short and broad. Black ; legs reddish-yellow. Thorax 

 more than double as broad as long, without distinct punctua- 

 tion ; elytra more than double as long as thorax, rather 

 closely and finely punctured. L. f 1. Common. 



P. hrachypterus, Fab. 



c. Antennae black, with first two joints reddish-yellow. 



Similar to P. hrachyptcrjis, but with elytra more brownish 

 and thorax gradually narrowed from base forward. L. | 1. 

 Moderately common. P. macroptcrus, Gyll. 



H, Length ^ line. 



Brownish-black ; antennae (except club) and legs red- 

 dish-yellow. Posterior angles of thorax sharp ; elytra tliree 

 times as long as thorax. Not uncommon. 



P. atomarius, Er. 



Mefjarthrus. 



A. Upper-side black or blackish-brown. 



a. Sides of thorax gently rounded ; emargination of 

 posterior angles forming an obtuse angle with side and 

 basal margins. 



Black, dull; antennae blackish-brown, with first two joints 

 darker ; legs red, femora often blackish. L. 1 1. Eather 

 common. 31. depressus, Payk. 



b. Sides of thorax with an obtuse angle behind middle 

 and a distinct prominence not far from anterior angles ; 

 emargination of posterior angles slightly curved, 

 forming tolerably sharp angles with side and basal 

 margins. 



J. Last two segments and apical margin of preceding 

 segment of abdomen (sometimes also lateral margins 

 of all segments) reddish ; lateral teeth of thorax 

 feeble. 



Similar to if. simiatocollis, but with thorax and elytra 

 ligliter, pitch-brown, former with distinct reddish sides, 

 apical margin of latter often pale; abdomen as above ; much 

 less shiny, the punctuation being very close. Male with 



