(Page 511) 

 longer than broad before the middle, posteriorly narrowing, and anterior- 

 ly with rather strongly rounded sides, flatly convex, with robust and ex- 

 tremely dense punctation, without distinct impressions posteriorly, and 

 without groove in middle-line; elytra a little longer than pronotum, 

 slightly flattish depressed and most often a little uneven, robust and 

 especially dense, not rugous punctation, their mutual posterior margin 

 obtuse angularly produced; abdomen slightly tapering, ratner robustly 



(Page 512) 

 and toward the tip very densely punctated, its foremost free dorsal 

 joint at base with a short carina in the middle-line, its last dorsal 

 joint at middle flatly grooved; tarsi short, their fourth joint feeb- 

 ly bilobed. L. 3 mm. 



In the o the abdominal fifth ventral joint posteriorly slightly im- 

 pressed and more densely haired, posterior margin feebly incurved, the 

 sixth at tip obtuse angularly or roundedly incised. 



Distributed in North and 1/iddle Europe; not rare in this country, 

 mostly on damp marsh- or meadow-ground, often in alluvium. 



Thomson holds (see Opusc. Ent. II, 127 and III, 329), that under the 

 name of carbonarius Jyllh. 4 species are synonymous. Besides the true 

 carbonarius Jyllh. he singles out opacu s 2r., Thorns., subglaber Thorns, 

 and glabellus Thorns, (cf. Thorns. Skandinaviens Insekter I, 37): 

 a. St. opacus Thorns, deviates from carbonarius Jyllh. in, that abdomen 



is less tapering, at tip less densely punctated, and that its last 



dorsal joint in the Q is without groove; the fifth ventral joint in 



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