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720; Kraatz Ins. D. II, 778; Thorns. Skand. Col. II, 222; Rey BreVip. 

 1884, 167; ianglb. Kaf. U. II, 582). 



A small species with round, not marginated abdomen like the follow- 

 ing species of this subgenus, but as a whole mainly recognized by: 

 especially densely punctated, dull thorax, and by abdominal four-cari- 

 nated foremost free dorsal joint, also by simple tarsal joints. 



Black; thorax dull, scarcely haired, abdomen feebly glistening, 

 very finely whitish haired; maxillary palpal first joint yellow; legs 

 darkly brownish-red, often almost black. 



The head is distinctly broader than pronotum, as broad as elytra, 

 with flat forehead without grooves, with rather robust, and extremely 

 dense rugous punctation, antennae rather short; pronotum at middle as 

 broad as long, narrower than elytra, with rounded sides, posteriorly 

 rather strongly narrowing, slightly convex, rather robust and extrem- 

 ely dense punctation, without groove in middle-line, and without im- 

 pressions; elytra a little longer than pronotum, flattish convex, with 

 robust and especially dense punctation, smooth; abdomen without margi- 

 nation, round, tapering, anteriorly with sparse, flat and rather fine, 

 posteriorly finer punctation, its first three free dorsal joints with 

 four fine carinae at base; tarsi short with undivided joints. L.2.5- 

 2.8 mm. 



In the O the abdominal sixth ventral joint at tip feebly emargi- 

 nated. 



Distributed in Middle and North Europe; in this country sometimes 

 numerous in alluvium on damp ground and at lake-shores, but somewhat 

 local. 



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