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the eyes at more than their own length from the base; antennæ long, very moderately incrassate, the tenth joint obtrapezoidal, about as long as wide, the eleventh pointed, almost as long as the two preceding; prothorax distinctly narrower than the elytra and very much wider than the head, relatively larger than in subplana, moderately transverse, parallel and rounded at the sides, very minutely, not closely punctulate and with a rather large but feeble transverse ante-basal impression; elytra large, wider than long, very much longer than the prothorax, the punctures moderately close-set and distinctly but not coarsely graniform, less strongly than in granulata; abdomen parallel, narrower than the elytra, minutely rather sparsely punctulate, much more distinctly and less sparsely than in granulata, where the abdomen is almost sculptureless. Length 3.2 mm.; width 0.78 mm. Alaska (Nome). |
Related to granulata but differing in its smaller head, more rounded sides of the prothorax, more punctulate abdomen and smaller size.
Liogluta Thoms.
As represented by the European longinscula Grav. and nitidula Kr., Liogluta is allied somewhat to Stethusa in the more widely separated middle coxæ, with the mesosternal process rather wide and abruptly arcuato-truncate at tip; it differs from Stethusa in its much smaller eyes, smaller prothorax and generally black coloration. The basal joint of the hind tarsi is equal to the second or a little longer; the infra-lateral carinæ of the head are feebly developed and abbreviated. The following American species agrees very well in structure with the European, except that the metasternal projection is longer and more angulate:
| Atheta (Liogluta) insolens n. sp.—Moderately stout and convex, strongly shining and with obsolescent micro-reticulation, deep black, the antennæ black throughout, the elytra and legs piceous, the former blackish basally; head parallel, well developed, the eyes at more than their own length from the base, the basal angles broadly rounded; antennæ moderate in length; rather rapidly incrassate, the outer joints distinctly wider than long; prothorax transverse, parallel, rounded at the sides, intermediate in width between the head and elytra, not distinctly punctulate and unimpressed; elytra large, slightly transverse, much wider and very much longer than the prothorax, very minutely, not closely punctulate; abdomen almost as wide as the elytra, parallel, with just visibly arcuate sides, almost sculptureless; first four joints of the hind tarsi equal. Length 2.5 mm.; width 0.7 mm. Queen Charlotte Islands (Massett),—Keen. |
Differs from vicina and nitidula in its broader abdomen, from the former also in its larger head and prothorax; the antennæ, also, are more rapidly and strongly incrassate than in either. In the
