816 Goleopterological Notices, VI. 



arcuate; apex feebly arcuate, much narrower than the base, the ocular lobes 

 strong and attaining the eyes; disk very slightly uneven, narrowly impressed 

 along the median line, the surface not tuberculose but very obscurely punc- 

 tured. Elytra two-thirds longer than wide, much more than twice as long as 

 the prothorax but not more than one-fifth wider, the sides parallel and feebly 

 arcuate; apex broadly obtuse; humeri obsolete but with the basal margin 

 acute and prominent at the sides; base broadly emarginate in circular arc; 

 suture strongly declivous and nearly straight in profile at apex, but making 

 an angle of scarcely more than forty-five degrees with the side margins and 

 not abruptly limited above, the intervals alternately flat and moderately con- 

 vex but only slightly more prominent at the summit of the declivity, the third 

 more noticeably tumid; serial punctures moderately coarse and close-set, each 

 with the usual hair, the surface not visibly punctate or rugose. Abdomen 

 shining, feebly punctato-rugose, sparsely pubescent and with a few scales to- 

 ward the sides, the first suture straight, feebly arcuate in the middle. Legs 

 moderate, the anterior longer in the male, the anterior tibite denticulate Avithin 

 and very strongly bent at apex. Length 6.5 mm. ; width 2.5 mm. 



Oregon. 



The unique t3'pe is a male, as show^n hy its narrow form and 

 broadly rounded fifth ventral ; the first segment is strongl}' im- 

 pressed in the middle at the posterior margin. 



ADALER£S n. gen. 



In general organization this genus is closely allied to D^yslobus, 

 differing in the fine and broadly arcuate first suture of the ab- 

 domen, and in having the second ventral much longer than the 

 next two combined. The apex of the hind tibise is oblique and 

 somewhat cavernous, but not distinctly unguiculate The two 

 species maj^ be distinguished as follows : — 



Humeri broadly rounded; elytral intervals not alternating in convexity or 

 only very slightly so near the apex; pronotum nearly smooth and densely 

 and evenly squamose OTipennis 



Humeri oblique, obtusely prominent at a slight distance behind the base; 

 elytra more oblong and less oval, the intervals alternately more convex, the 

 suture prominently keeled at the posterior declivity; pronotum coarsely 

 granulose and irregularly squamose lilliiieralis 



This genus differs further from Dyslobus in having the first 

 three joints of the antennal funicle more or less distinctly elon- 

 gated. The serial punctures of the el^ytra are rather small, some- 

 what distant, each enclosing a rounded scale attached anteriorly. 



A. OTipeiinis n. sp. — Elongate-oval, strongly convex, black, the anten- 

 nae and tarsi not paler; body very denselj^ clothed throughout to the tip of 



