Page:Memoirs on the coleoptera (IA memoirsoncoleopt01case).pdf/64

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 * Atheta (Crephalia) testata n. sp.—Subparallel, somewhat convex, shining, the punctures minute and rather sparse, moderately close though scarcely distinct on the elytra, the abdomen coarsely but feebly micro-reticulate, the vestiture fine, not very close; pale brownish-testaceous, the abdomen feebly clouded posteriorly, except at apex, the legs pale; head as long as wide, suboval, the tempora nearly one-half longer than the eyes and more inflated, the carinæ wholly obsolete except at base; antennæ pale testaceous, rather short and stout, gradually though moderately incrassate and compact distally, the outer joints strongly transverse, the last longer than the two preceding, the second and third moderately elongate, mutually similar in form, the latter much the shorter; prothorax only slightly transverse, large and convex, much wider than the head and as wide as the elytral base, somewhat widest before the middle but with the sides distinctly and almost evenly arcuate, the basal angles obtusely rounded, unimpressed; elytra short and transverse, the sides straight and diverging, the suture equal in length to the prothorax; abdomen wide, only slightly narrower than the elytra, parallel, the tergites subequal and short. Length 1.38 mm.; width 0.38 mm. Pennsylvania (Philadelphia).
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This species is one of our smallest of the true Athetids; it is probably fungivorous in habits.



The form is here rather stout, the elytra greatly developed, the middle coxæ slightly separated, the mesosternal process extending to their middle, the tip very acute, subaciculate and separated from the transverse and feebly, medially and obtusely cuspid metasternum, by a very long sunken acute ridge. The hind tarsi are slender, with the first three joints decreasing rather rapidly in length, the first much longer than the second, and the apices of the elytra are not definitely sinuate laterally. Male sexual marks are very feeble.