Page:Memoirs on the coleoptera (IA memoirsoncoleopt01case).pdf/51

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 * Atheta disjuncta n. sp.—Rather stout, moderately convex, strongly shining throughout, the micro-reticulation virtually obsolete, the abdomen faintly opalescent from the minute and extremely close but faint micro-strigilation; pubescence rather long, not close; punctures minute, not close-set and feebly asperulate; color piceous-black, the prothorax dark piceous, the elytra and legs very pale; head moderate, the eyes at less than their own diameter from the base, the carinæ fine and virtually entire but not joined to the buccal margin as they are in discreta; antennæ rather long, only feebly incrassate, piceous-black, very gradually testaceous basally, the outer joints very nearly as long as wide, the lasts slender, gradually pointed, longer than the two preceding, the second and third much elongated, the latter the longer; prothorax moderately transverse, much wider than the head, not quite as wide as the elytra, parallel and evenly, rather strongly arcuate at the sides, the ante-scutellar impression small and very feeble; elytra moderately transverse, distinctly longer than the prothorax; abdomen slightly narrower than the elytra, parallel, with very slightly arcuate sides, the first five tergites short, equal in length, the sixth (♂) abruptly truncate, the truncature feebly, angularly sinuate and coarsely, strongly crenulate; mesosternal process extending fully two-thirds of the coxæ, gradually and sinuously narrowed and prolonged but appreciably wide, the apex rather acute, separated from the broadly angulate metasternum by a moderate space, which is slightly depressed and broadly, transversely convex; two basal joints of the hind tarsi short and subequal, the next two a little longer. Length 2.6 mm.; width 0.7 mm. Pennsylvania (Allegheny) and North Carolina (Asheville).
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The abdomen is somewhat as in strigosula, but the species is very different in its shining surface, larger prothorax and other characters.

Distinguishable readily by the antennal characters and coloration.