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 and are mainly natives of northern countries and Middle European high- 

 lands. Of 8 known European 6pecies, 3 are found in Denmark. 



Key to Species. 



1. Hind corners of pronotum entirely rounded off..... 2. 



Hind corners of pronotum distinct, obtuse angular. L. 3.5-4 mm... 



3. 0. assimlle Payk. 



2. Pronotum and elytra about equally densely and coarsely punctated. 



Body thick and convex. L. 4.5-5.5 mm 1. 0. piceum Jyllh. 



Pronotum much more finely and densely punctated than the here and 



there rowed punctated, flatly convex elytra. L. 4-4.5 mm 



2. 0. fuscum Jravh. 



1. 0. piceum CJyllh. 



(Jyllh. Ins. Suec. II, 200; Erichs. Kaf. Mk. Br. I, 623; Sen. Spec. 

 Staph. 864; Kraatz Ins. D. II, 939; Thorns. Skand. Col. Ill, 193; Eey 

 Bre'vip. 1880, 135; 3anglb. Kaf. M. II, 720) 



The body is thick and convex, pronotum and elytra coarsely and more 

 uniformly punctated than in the following species. 



Pitch-brown or reddish-brown, naked, glistening; pronotum or ar least 

 its sides often pale red; antennae, mouth and legs brownish red; base 

 and tip of antennae, also tarsi ordinarily yellowish-red. 



Head robustly and rather densely punctated, forehead without grooves 

 before the ocelli, but with two, very flat, feeble impressions anterior- 

 ly above antennal base, antennae slender, very feebly thickened distally, 

 all joints longer than broad, but the next-last however a little shorter 



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