68 MEMOIRS ON THE COLEOPTERA 



surface, the third joint briefly oblique beneath the fourth but not 

 strictly lobed, the basal joint of the posterior as long as the next 

 two combined, the claws small, slender, feebly arcuate, straighter 

 basally. 



It will be noted that in most of its characters, and especially the 

 small oval coxae, the tarsi and the antennae, this singular genus 

 bears a much closer resemblance to Lioligus than it does to Amphi- 

 cyrta; the mandibles are remarkably specialized. The species 

 seem to be four in number and may be denned as follows: 



Color pale brownish-testaceous, polished, with a feebly cupreous gloss, 

 the under surface, legs and antennae still paler and without metallic 

 lustre; upper surface subglabrous, each puncture bearing an ex- 

 tremely small and fine subdecumbent or recurved hair, only visible 

 on close observation; head with sparse though rather large punctures 

 and with three large indentations, to some extent adventitious per- 

 haps; prothorax very convex, twice as wide as long, the sides rounded 

 and subparallel in basal, becoming strongly converging and straighter 

 in apical, half, where the sides are subcompressed, the punctures 

 everywhere sparse and extremely minute; elytra not quite as long 

 as wide, parallel, with rounded sides and very broadly rounded apex, 

 slightly more than twice as long as the prothorax and, at the middle, 

 evidently wider, the punctures very sparse and minute though more 

 visible than those of the pronotum; under surface throughout shining, 

 minutely and very sparsely punctulate, the last ventral more coarsely 

 but not densely. Length 3.7 mm.; width 2.3 mm. British Columbia 

 (Metlakatla), Keen speculate n. sp. 



00101" black or blackish, the upper surface with more or less metallic 

 gloss 2 



2 Oval, stout, strongly convex, polished, piceous-black, with feeble and 

 variable metallic glint above, testaceous throughout beneath, the 

 antennae somewhat infumate distally; punctures of the upper surface 

 bearing each a short but rather coarse and very distinct pale hair, 

 those of the head and pronotum subdecumbent, on the elytra more 

 erect and hispid; surface of the pronotum with very large and rather 

 feeble micro-reticulation, obsolescent on the head and completely 

 wanting on the elytra; head rather coarsely and closely punctate, 

 having a broad and feeble impression along the middle near the 

 base; prothorax distinctly less than twice as wide as long, less com- 

 pressed anteriorly than in the preceding though very declivous, the 

 sides moderately converging, very evenly and feebly arcuate from 

 base to apex, the punctures well separated though only moderately 

 small, rather shallowly impressed but very distinct; elytra very 

 short, much shorter than wide, not quite twice as long as the pro- 

 thorax and, at the middle, evidently wider, parallel, with evenly 

 arcuate sides and very broadly rounded apex, the surface vertical, 

 even becoming inflexed apically as in the preceding, so that the actual 



