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 robust and dense, at middle more isolated longitudinal aciculated-punc- 

 tation, sides with single outstanding bristles; elytra short, not long- 

 er than pronotum, with rather robust and isolated punctation and the sur- 

 face very finely, densely longitudinally aciculated, their posterior mar- 

 gin not marginated; abdomen not punctated, but very finely reticulated. 

 L. 2.5-4 mm. 



In the O , which often is larger and more rocust than Q , especially 

 the head is much thicker and larger than in the latter, with longer, more 

 developed temples, a deeper, at middle angular constriction-groove, and 

 somewhat longer antennae, etc.; pronotum is likewise larger than in the 

 q , croader than elytra; posterior margin of seventh ventral abdominal 

 joint is at middle triangularly incised and on each side of the incision 

 with a rather long, erect spine. 



In manure, at rotting plants and under leaves on semidarap ground; 

 distributed in Surope and North Asia; everywhere in this country not rare. 

 - The larva is described and illustrated by Prof. I. Schiodte (Naturhist. 

 Tidsskr. III. P. 3. B., 1864-65, 210, T. XI, Fig. 15-22 and T. XII, Fig. 3), 

 later also reared by Gand . W. Schlick. 



2. Subgenus Platystethus s. str. Thorns. 



2. P. cornutus Jravh. 



(Jravh. I.'.icr. 109j ^richs. Kaf. Uk. Br. I, 586; 3en. Spec. Staph. 782 

 and Kraatz Ins. D. II, 841 (ex parte); Thorns. Skand. Col. Ill, 122; Muls. 

 et Fey Erevip. 1379, 23; Janglb. Kaf. \... II, 631). 



Identified mainly by the sculpture of elytra, and sex-characters of 



the 6\ 



-39- 



