748 Coleopterological Notices, VI. 



tinctly impressed in the middle; tempora prominent; e3'es some- 

 what large, at much less than their own length from the base ; 

 antennfB very slender, just visibly incrassate, almost as long as 

 the head and prothorax, the tenth joint longer than wide. Pro- 

 thorax scarcely visibly wider than the head, trapezoidal, minutely, 

 sparselj' tuberculose, widest at apical fourth. El3'tra convex, 

 oval, two-thirds longer than wide, one-half wider than the pro- 

 thorax, the sides evenly arcuate; humeri somewhat widely ex- 

 l)osed at base ; disk finely and not densely punctate, the Itasal 

 impressions and omoplates extremely feeble. Legs moderately 

 long and slender. Length 2.6-2.8 mm.; width 0.95 mm. 



Lake Superior, — Cab. LeConte; AVisconsin (Bayfield), — Mr. 

 Wickham. The anterior tibiiu of the male Itristle within with 

 stiff erect setje ; they are swollen withiu toward the middle and 

 slightly bent toward apex ; the lifth ventral is feebly subtruncate 

 at apex, the genital segment truncate, with the surface deeply and 

 transversely impressed. 



8. A. arenai'iiis n. sp. — Stout, convex, pale luteous throughout, except 

 the abdomen, which is clouilecl with blackish; head and pronotum slightly 

 shining, finely reticulate, the elytra dull and strongly, more granularly retic- 

 ulate; pubescence short, coarse, decumbent and rather dense. //<■«</ triangu- 

 lar, as long as wide, truncate and medially impressed at Vjase, the tempora not 

 very angulate, rounded ; eyes large, conve.v, at much less than their own 

 length from the base and not mucli less prominent than the tempora; surface 

 rather finely, sparsely tuberculose, with an entire median impunctate line; 

 antenna; long, slender, distinctly incrassiite and slightly infuscate toward 

 apex, two-thirds longer than the head, the tenth joint not quite as long as 

 wide. Prothorax just visibly wider than the head and but slightl}^ transverse, 

 widest vetj' near the apex, the sides thence just visibly convergent and slightly 

 arcuate to tlK' middle, there becoming more rounded and strongly convergent 

 to basal sixth, thence parallel to theb<ase; apex transversely, evenly arcuate; 

 disk finely, not densely granulato-tuberculate. Eli/tro short, oval, convex, 

 one-half longer than wide, two-thirds wider than the jjrothorax, sonu-what 

 attenuate behind and not very broadly obtuse at apex; sides rather strcmgly 

 arcuate; humeri moderately exposed at base; disk finely but strongly, densely 

 punctate, without impressions or omoplates. Abdomen feebly shining, mi- 

 nutely, densely imnctate, the legs moderate in lengtli and thickness. Length 

 2.8 mm.; widtli 1.0 mm. 



Rhode Island ( Newport ). 



The male has the anterior tibiic swollen within toward the mid- 

 dle and slightly bent toward apex, the fifth ventral evenly round- 

 ed and unmodified, the genital segment truncate and deeply, trans- 



