96 MEMOIRS ON THE COLEOPTERA 



angles, and the side margins are less broadly reflexed; impressions 

 not so strong, the stria impressed, incomplete; foveae and carina 

 similar, the general surface postero-laterad similarly feebly rugulose 

 and dullish; elytra similar but less broad, rather more than one-half 

 longer than wide; striae and punctures nearly as in mobile, the foveae 

 more nearly at basal and apical third. Length (of) 4.5 mm.; width 

 1.65 mm. California (Truckee) semotum n. sp. 



Surface and coloration nearly as in the two preceding, the head, sulci 

 and antennae almost as in mobile; head and prothorax larger than in 

 semotum; elytra with the faint pallidity externally and at base barely 

 traceable, the fascia similar; apex as in mobile, not definitely paler; 

 prothorax in outline nearly as in semotum, but only a third wider 

 than long, also with the apex sinuate and with rather sharp angles 

 as in mobile; impressions distinct, the incomplete stria moderate; 

 carina longer and stronger than in either of the preceding; elytra 

 differing from either, oblong-oval, parallel, with distinctly arcuate 

 sides, nearly similar in proportional relationships but with the striae, 

 though entire, extremely fine and unimpressed, the punctures very 

 minute and widely separated; seventh stria observable but faint; 

 foveae small, at basal fourth and apical third. Length (cf ) 4.8 mm.; 

 width 1.85 mm. California (Duncan's Mills, Sonoma Co.). 



nubiferum n. sp. 



15 Body notably large and stout, the general habitus much as in the 

 three preceding species; black, shining, the anterior parts with feeble 

 greenish lustre, the head rather evidently alutaceous; elytra piceous, 

 broadly, somewhat nubilously rufescent toward base externally, and 

 with a faint fascia near apical third as in the preceding; legs rufous, 

 the femora somewhat clouded medially; head two-thirds as wide as 

 the prothorax and narrower than an elytron, the moderate sulci 

 having an acute sinuous outer limit; palpi piceous, blackish distally; 

 antennae long and slender, fuscous, in part pale basally; prothorax 

 nearly one-half wider than long, widest at anterior two-fifths, the 

 sides there strongly, subevenly rounded, oblique and broadly sinu- 

 ate in a'bout basal half, the angles sharp and nearly right, the an- 

 terior but slightly blunt; surface nearly as in mobile, the margins 

 strongly reflexed; base and apex equal; elytra one-half longer than 

 wide, almost one-half wider than the prothorax, the sides not very 

 rapidly rounding at the humeri; striae entire, not very fine, impressed, 

 strongly so basally, where the generally very fine punctures become 

 stronger and rather close; foveae asperulate, near basal fourth and 

 apical third. Length (9) 6.0 mm.; width 2.4 mm. Idaho (Coeur 

 d'Alene), Lt. J. A. Leyden gulosum n. sp. 



Body not quite so large, rather depressed above, similar in coloration, the 

 legs and inflexed sides of the pronotum and elytra pale; head well 

 developed, the sulci shallow, their external sides prominent and sinu- 

 ous; antennae as in the preceding; prothorax scarcely two-fifths 

 wider than long, strongly rounded and reflexed at the sides, finely 

 reflexed anteriorly, the oblique sides basally, very moderately sinu- 

 ate, the angles obtuse but sharp; surface nearly as in the preceding; 

 impressions strong, the carina long and strong; elytra oblong-oval, 



