ATOMARIA. 4f)0 



with a fine raised line near side margin, posterior angles 

 riglit angles, not very convex, closely punctured; elytra 

 with rows of fine bristles. Scarce. A. ferruginea, Sahl. 



b. Club of antennae formed of three equal joints. 



I, Transverse basal impression on thorax without fold 

 on each side. 

 1, Posterior angles of thorax right angles. 



Oblong, rather flat. Yellow-brown ; shiny ; pubescence 

 fine and scanty. Thorax nearly as broad as elytra, slightly 

 broader than long, sides a little rounded, not narrowed in 

 front, anterior angles pointed and prominent ; punctuation 

 fine and diffuse. L. f 1. Eare. A. diluta, Er. 



^. Posterior angles of thorax obtuse or rounded. 



A A. Body nearly cylindrical. 



a a. Thorax as broad as elytra ; last joint of 

 antennae narrower than penultimate. 



Blackish or dark brown ; shiny ; elytra lighter ; antennae 

 and legs brown-red ; pubescence rather scanty. Thorax as 

 broad as elytra, as long as broad, sides gently rounded, 

 scarcely more narrowed before than belli nd, convex, punc- 

 tured closely at sides, rather more diffusely in middle, base 

 narrowly bordered. L. 1 1. Scarce. A. fhnetarii, Herbst. 



b b. Thorax slightly narrower than elytra ; 

 last joint of antennae as broad as penulti- 

 mate. 

 A a. Length 1 line. 



Oblong, rather shiny, convex, nearly cylindrical. Black, 

 with feeble gray pubescence ; antennae and legs rust-red, 

 seventh joint of former not transverse. Thorax scarcely 

 broader than long, slightly narrower than elytra, closely 

 and distinctly punctured, base evenly bordered ; elytra moi-e 

 finely and somewhat unevenly punctured. Antennae longer 

 than in A. fimetarii, and thorax less ample ; more convex 

 than A. elongatula, with elytra rather more strongly punc- 

 tured. L. 1 1. Very rare ; Inverness-shire. 



A. longicornis, Th. 

 jB b. Length f — f line. 



A 1. Punctuation of thorax close. 



a 1. Thorax strongly or rather strongly 

 punctured. 



