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sparser vestiture; black or piceous-black, the legs bright, the elytra darker, rufous, the latter feebly blackish basally; antennæ dark, paler basally; head parallel, convex, rather shining, the eyes at their own length from the base, not very convex; antennæ long and slender, the tenth joint much longer than wide; prothorax large, very much wider than the head and only a little narrower than the elytra, fully a fourth wider than long, the sides parallel, broadly arcuate; surface finely, closely punctulate and with a small nearly rounded feeble impression near the base; elytra subparallel, much wider than long, the suture only a little longer than the prothorax, the surface feebly convex, finely, closely and inconspicuously punctulate, abdomen wide, slightly narrower than the elytra, parallel, minutely, not closely punctulate, the sixth tergite broadly arcuate, becoming gradually feebly sinuate medially at tip in the type, the sixth ventral broadly angulate, the angle rounded. Length 3.3 mm.; width 0.8 mm. Wisconsin (Bayfield),—Wickham. |
Differs from any other described species of the subgenus in its more parallel and rather convex form.
| Atheta (Homalotusa) wisconsinica n. sp.—More slender and less parallel than the preceding, piceous, the abdomen black, gradually bright rufous apically; elytra and legs pale brownish-rufous, the former infumate basally toward the scutellum, the antennæ fuscous, paler very gradually basally; head small, orbicular, the eyes at nearly their own length from the base; antennæ long, very slender, the second joint a little longer than the third, the tenth very distinctly elongated; prothorax not quite a fourth wider than long, parallel, with broadly and very moderately acuate sides, much wider than the head and correspondingly narrower than the elytra, minutely, closely punctulate, the basal impression very feeble; elytra parallel, wider than long, the suture distinctly longer than the prothorax, the slightly rough punctulation very minute and close-set; abdomen only moderately wide, much narrower than the elytra, minutely, sparsely punctulate, shining and unusually flat, the fifth tergite very much longer than the fourth, the sixth broadly and very evenly arcuate at apex in the type, and behind this, another segment, the surface of which is covered sparsely with stiff inclined spinuliform hairs; sixth ventral moderately narrow, with the apex arcuato-truncate. Length 3.5 mm.; width 0.75 mm. Wisconsin (Bayfield).—Wickham. |
This distinct species differs greatly from the preceding in the more elongate fifth tergite, which in lacustrina is only about as long as the fourth; also in smaller prothorax, narrower abdomen, larger eyes and other characters. The sex of the type is not evident.
Anepsiota Csy.
The species of this subgenus are moderately large in size, of heavy build and unusually broad abdomen, this in the majority being fully as wide as the elytra. The antennæ in typical forms, such as the type (A. quadricollis Csy.), are long and rather strongly
