(Page 571) 

 is therefore misleading. In Denmark 12 of the in Kiddle and r.'orth Eu- 

 rope distributed species are found, in the entire Europe about 30 specie?. 



Key to Subgenera ana Species. 



1. Fronotum posteriorly with a deep arcuate transversal impression: 1. 



Subgenus Oarpalimus Thorns.- Body proportionately broad, with 

 fine, prostrate hair-clothing. L. 3.5-4 mm. ..1. 1. arcuatus Steph. 

 Pronotum posteriorly without arcuate impression, but at middle as a 

 rule with two longitudinal impressions, v.hicn often are divided 

 into four flat foveae, sometimes almost obliterated or very 

 feeble 2. 



2. Antennal middle-joints (5-7) considerably longer than broad: 2. Sub- 



genus Trogophloeus s. str. Thorns 3. 



Antennal middle joints (5-7) at most as long as broad, most often 



distinctly transverse: 3. Subgenus Taenosoma Thorns 4. 



(Page 572) 



3. Sides of pronotum before middle strongly rounded, its fore-corners 



rather acutely prominent; elytra rather robustly punctated. L. 



3-2. £ 3ii 2. T. billineatus Steph. 



Sides of pronotum anteriorly less strongly rounded, fore-corners 



rounded off; elytra finely punctated. L. 2.7-3 mm 



3 . T. rivulsris Mo t sc h . 



4. Antennal middle-joints (5-7) as long as broaa t. 



Antennal middle joints transverse £• 



5. Pronotum without distinct impressions, glistening, anteriorly a? 



.76- 



