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 elytra, narrowing anteriorly, the fore-corners rounded off and fore-mar- 

 jin almost straight, sides immarginate, behind the middle more or less, 

 incurved,, rarely straight, hind corners very acute, obliquely outwardly 

 prolonged, posterior margin at middle roundly produced, at each side broad- 

 ly and strongly curved, dorsal side rugged, at sides concavous impressed, 

 slightly grooved in middle-line. Elytra only a little longer than prono- 

 tum , extremely finely and very densely punctated, with very fine and short, 

 rather dense yellovw hair vestiture, feebly silky-gloesy ; abdomen almost im- 

 punctate and smooth, glistening, its first three free dorsal joints back of 

 the transversal grooves shortened by transverse folding. L. 4-4.5 mm. 



Not rare in the early spring with the diverse forms of t/yrmica rubra , 

 later especially with Formica fusca , but also v.ith F. sanguinea . 



2. A. paradoxus (iravh. 



(Jravh. Mon. Micr. 180; Erichs. Kaf. Mk. Er. I, 376; 5en. Spec. Staph. 

 203; Kraatz Ins. L. II, 116; Thorns. Skand. Col, II, 243; Wuls. et Rey Bre'- 

 vip. 1873, 26; langlb. Kaf. M. II, 113). 



Much like emarginatus in size, form and color, but identified by, that 

 the third Joint of the antennae is more elongate and twice as long as the 

 second, that pronotum anteriorly is much broader, rarely slightly narrow- 

 ing, occasionally rounaly dilated (v. laticollis) , its hind corners short- 

 er and less outwardly produced, dorsum indistinctly or scarcely punctated, 

 but on each side in the concavity with a round fovea, which rarely is want- 

 ing, and only exceptionally found in the preceding species; the foremost 

 dorsal joints of abdomen finely and densely punctated and not shortened 

 by transverse folding. L. 4-4.5 mm. 



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