Staphylinidæ.
21
a few sparse feeble elevations, broadly flattened medially, the flattened part limited at each side by fine feeble parallel ridges, which are nearly straight but curve apically partially around the contour of the apical lobes; the apex of this flattened surface is strongly bilobed, the lobes strongly, evenly rounded and separated by a narrow deep rounded sinus.
| Atheta sibylla n. sp.—Rather stout, moderately convex, black, the elytra blackish-piceous, the legs pale, the antennæ blackish throughout; surface moderately shining, densely micro-reticulate, the abdomen more coarsely though much more feebly so and strongly shining; vestiture short, not very dense, the punctulation very fine, rather loose, closer on the elytra which are less shining, very sparse on the abdomen; head with a central impression, feebly punctulate, rather shining, the eyes at more than their own length from the base, the rounded tempora parallel; antennæ rather long and thick, thought but feebly incrassate, the outer joints only slightly transverse, the second longer than the third; carinæ very fine and feeble, incomplete; prothorax slightly wider than the head and a little narrower than the elytra, parallel, the sixth tergite (♂) broadly, feebly sinuato-truncate, feebly crenulate on the edge except for a moderately wide space at the middle; mesosternal process extending slightly beyond the middle of the coxæ, very finely aciculate at tip and distant from the broadly and feebly parabolic metasternum, the intervening space deeply sunken, the coxæ contiguous; first four joints of the hind tarsi equal. Length 2.6 mm.; width 0.75 mm. Virginia (Fort Monroe). |
To be readily known by the sternal structure, feeble carinæ and thick subfiliform antennæ.
| Atheta weedi n. sp.—Stout, rather convex, shining, black, the elytra and legs pale brownish-flavate; antennæ infuscate; head and pronotum sparsely and not distinctly punctulate, the former not impressed, the eyes unusually large, prominent, setose, distant from the base by a little less than their own length; prothorax transverse, relatively rather small, slightly wider than the head but much narrower than the elytra, slightly widest just before the middle, the sides rounded; basal angles obtuse and blunt; surface broadly, feebly flattened medially, becoming gradually slightly impressed basally; elytra large, wider than long, very much longer than the prothorax, very finely, not densely and inconspicuously punctate; abdomen parallel, with slightly arcuate sides, at the middle nearly as wide as the elytra, minutely, sparsely punctate, the fourth and fifth tergites equal, the sixth (♂) with a projecting slender spur having its inner face concave at each side of the broad apex, the edge between very broadly, evenly arcuate and evenly tuberculato-crenulate; mesosternal process extending to the middle of the coxæ, usually broad, nearly as in Stethusa, with its apex rounded and separated from the large angulate metasternal projection by twice its |
