(Page 609) 

 smoothly thickened distally, their next-last O oints not strongly trans- 

 verse. Pronotum is narrower than elytra, broader than long, feebly nar- 

 rowing posteriorly, robust and rather isolated punctation, with two rather 

 deep, oblong impressions at middle, and a feeble one in middle-line anter- 

 iorly between these, side-margins before the hind corners flatly impres- 

 sed and smoothened; elytra nearly twice as long as pronotum, rather flat, 

 coarsely and rather densely punctated; abdomen indistinctly punctated, e- 

 specially densely shagreened and somewhat glistening. L. 3.5-4 mm. 



Common everywhere at rotting and mouldy plants, also at carrion, out- 

 flowing fomenting sap of trees, in alluvium at lakes, and on beaches under 

 seaweed. 



2. 0. septentrior.is ' Thorns. 



(Thorns. Ofv. Vet. Forh. 1856, 223; Skand. Col. Ill, 211; Ganglb. Kaf. 

 M. II, 735. - imp res sum Kraatz Ins. C. II, 982). 



Of same length as, but a little narrower than caesum , closely allied 

 to rivulare , but inter alia more robustly and densely punctated. 



(Page 610) 



Black; the head, pronotum and elytra glistening, abdomen dull; prono- 

 tal side-margins and posterior margin reddishj elytra and abdominal tip 

 reddish-brown; the antennae reddish-brown, their base, mouth-parts and legs 

 reddish-yellow. 



The head rather deeply and densely punctated, with short, linear, deep 

 foveae of forehead as in excavatum , temples very short, suddenly constrict- 

 ed, angularly, next-last joints of the antennae more strongly transverse 

 than in rivulare ; Pronotum as in caesum . but its impressions on dorsum and 



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