[99] 



NORTH AMERICAN COLEOPTERA. 255 



humeral angles distinctly rounded; sides narrowly reflexed, edges acute; 

 disk broadly and very strongly convex, nearly three times as long as the 

 pronotum; ridges very fine, rather feebly elevated; intervals evenly concave, 

 each with a single series of round, rather deep punctures, distant by slightly 

 more tbaa their own widths; along each side of the immediate crests of the 

 costas there is a line of very small, round, closely-placed areolae; remainder 

 of the surface slightly and irregulnly roughened or subalutaceous, mode- 

 rately shining. Legs moderate; femora compressed, excavated beneath 

 through two-thirds the length for the reception of the tibiae ; tibial spurs situ- 

 ated at the inner apex, arranged parallel to the lower edge of the apex and 

 almost in line with the point of insertion of the tarsi, claws large, simple, 

 divergent. Length 4.5-5.0 mm. 



California; (Truckee, Nevada Co. 2). Mr. Harford. 



The lateral edges of the prothorax are sometimes ex- 

 tremely feebly and irregularly undulated. 



This species, the first of its tribe to be announced from 

 the Pacific slope of the continent, lives in fungus growing 

 upon fallen logs. 



BARINUS n. gen. (Curculionidae.) 



Body rather slender and elongate, clothed with large, elongate scales, entirely 

 without hairs. Beak very short, rather stout, much shorter than the pro- 

 thorax, slightly flattened, rather strongly arcuate; scrobes beginning slightly 

 before the middle, descending obliquely to the eyes; the latter large, vertically 

 oval, not very prominent, finely granulated; lnterocular surface scarcely wider 

 than the beak, feebly impressed. Antennas rather slender; first joint of 

 funicle slightly shorter than the scape, rather strongly clavate, very slender 

 toward base, nearly as long as the remainder of the funicle; second to seventh 

 nearly equal, cylindrical, more slender than the apex of the first; club abrupt, 

 very elongate, oval, finely pubescent, slightly longer than the preceding six 

 joints of the funicle combined. Prothorax without postocular lobes. Pro- 

 sternum rather long in front of the coxae, rather narrowly and deeply sulcate 

 throughout its length, moderately separating the coxae. Middle and posterior 

 coxae widely separated. Metasternum longer than the first ventral segment. 

 First two segments of the abdomen rather long, nearly equal in length; su- 

 ture almost entirely obliterated in the middle; third and fourth segments 

 short, equal, together scarcely longer than the first; fifth rounded behind, as 

 long as the third and fourth together; posterior sutures strongly sinuate at 

 the sides. Elytra conjointly rounded at tip, coucealing the pygidium. Legs 

 moderate in length, rather robust; tibias not grooved, all mucronate at tip; 

 spur of the anterior and middle pairs vertical, of the posterior oblique and 

 nearer the insertion of the tarsi; all very small and robust; second and third 



