(Page 194) 



Black, especially finely haired and rather glistening; pronotum oft- 

 en pitch-brown; elytra brown or reddish-brown, their base, mouth-parts 

 and legs yellow. (Page 195) 



The head is a little narrower than pronotum, rounded, very feebly 

 dilated posteriorly, rather convex, indistinctly punctated; the eyes 

 small and very feebly protruding, temples twice as long as the eyes; an- 

 tennae rather short and quite robust, smoothly thickened distally, their 

 third joint small and much shorter than the second, the fourth as long 

 as broad, the middle ones feebly, the next-last (7-10) more strongly 

 transverse, twice as broad as long, distal joint short, obtusely tipped. 

 Pronotum is a little narrower than elytra, a little broader than long, 

 with rounded sides and corners, smoothly convex, extremely finely and 

 rather densely punctated, sometimes with a suggested transverse fovea 

 before the scutellum, more rarely feebly grooved at middle-line; elytra 

 only a trifle longer than pronotum, very finely and rather densely punc- 

 tated, their posterior margin inside the outer corners feebly incurved. 

 The first three free dorsal joints of abdomen with especially fine and 

 very scattered punctation, the following almost smooth, the fifth not 

 longer than the fourth. L. 1.5 mm. 



The difference between o and Q indistinct. 



It lives exclusively with ants, especially in the mounds with the 

 forest ant Formica rufa and v. pratenls , where it sometimes can be found 

 in great numbers; it occurs more rarely and singly with the black ant 

 Lasius fuli^inosus ; distributed in Middle and North Europe and not rare 

 in Denmark. 



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