(Page 434) 

 brown; antennal first joint most often black. 



The head on sides is a little more rounded than in angustatus . 

 the middle as well as the sides less densely punctated, the surface 

 not reticulate, therefore more glistening; pronotum on surface not 

 aciculated, but polished, with very scattered and extremely fine punc- 

 tation, same a$ in punctulatus , and like this with only 4-6 punctures 

 in the dorsal punctate rows, and 8-10 in side-rows. Punctation of el- 

 ytra and abdomen like that in angustatus . L. 6-7 ram. 



(Page 435) 

 In the mounds with Formica rufa and Lasius fuliginosus ; distrib- 

 uted in North and Middle Europe, but rare and local; heretofore it 

 is here mostly found in North Sjaelland (Fudehegn, 1: okke'Kph Kegn, Kil- 

 ler/d, Tisvilde Hegn) , however also in F.old Forest, Jutland. The ants 

 chase it as a rove-guest ("'asuiann) . 



4. Subgenus Xantholinus s. str. 

 6. X. glabratus Jravh. 



(iravh. Micr. 178; Erichs. Kaf. Llk. Br. I, 4:B4; ien- Spec. Staph. 

 319; Kraatz Ins. L. II, 633; Thorns. Skand. Col. IX, 177; Muls. et Pey 

 Brivip. 1877, 46; 3anglb. Keif. i«. II, 481). 



Our largest species; easily identified by the size, and by the 

 vivid coloring of elytra. 



Deeply black, polished glistening; elytra vivid red; antennae, 

 mouth-parts, and legs pitch-brown, tarsi reddish. 



The head is large, oblong, fully as broad as pronotum, broadened 

 posteriorly and with slightly rounded-off temple-corners, at middle 



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