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not quite entire; antennæ rather short, strongly incrassate, the outer joints strongly transverse, the second and third equal, cylindric and obconic respectively; prothorax well developed, transverse, parallel and rounded at the sides, very much wider than the head and almost as wide as the elytra, the latter transverse, the suture only a little longer than the prothorax; abdomen parallel, narrowing a little behind, almost as wide as the elytra, the second and third segments equal in length, the sixth tergite (♂) evenly and moderately sinuate at tip, the sixth ventral plate narrow, strongly rounded in the male, both plates broader and broadly rounded in the female; mesosternal process extending nearly to apical fifth of the coxæ, becoming parallel and moderately narrow apically, the tip rounded and not far distant from the broad angulate metasternum; basal joint of the hind tarsi much shorter than the second. Length 2.3 mm.; width 0.55-0.58 mm. British Columbia (Metlakatla),—Keen. |
The female has the elytra slightly shorter and still more transverse, with the apical plates of the abdomen very much wider; it is probably a fungivorous species.
| Atheta neutralis n. sp.—Rather stout, moderately convex, black, the elytra and legs castaneous, the femora picescent, the antennæ blackish throughout; surface dullish, finely, closely, asperulately punctate, the abdomen shining, sparsely punctulate and with rather long hairs, the vestiture otherwise short as usual; head rather small, moderately transverse, parallel, the eyes at about their own length from the base, the carinæ distinct, almost entire; antennæ moderately long, gradually and rather feebly incrassate, the outer joints distinctly transverse, the last longer than the two preceding, the second and third long, obconic, the latter slightly the longer; prothorax transverse, parallel but only moderately rounded at the sides, much wider than the head and slightly though evidently narrower than the elytra, scarcely at all impressed; elytra only slightly transverse, much longer than the prothorax; abdomen distinctly narrower than the elytra, parallel, slightly narrowing apically, the fifth tergite slightly shorter than the fourth, the sixth (♂) evenly and moderately sinuate at tip; basal joint of the hind tarsi much shorter than the second; mesosternum gradually narrowed to the acutely angulate but neither aciculate nor prolonged apex, which is at apical fourth of the coxæ and very close to the long angulate metasternal projection, the angle blunt. Length 2.3 mm.; width 0.6 mm. California (Sta. Cruz Mts.). |
It is assumed that the three specimens in my collection are males, though the abdominal characters are feeble, as in mollicula.
| Atheta fanatica n. sp.—Moderately stout and subfusoid, feebly shining, the punctures very small, moderately close-set and slightly asperulate; vestiture short, not very dense; black, the elytra piceo-rufous, the legs piceous; head well developed, slightly transverse, parallel, the eyes at their own length from the base, carinæ wholly obsolete, not traceable even basally; antennæ blackish throughout, moderate, gradually and not strongly incrassate, the outer joints evidently transverse, the last short, scarcely so long as the two preceding, second and third elongate, sub- |
