72 MEMOIRS ON THE COLEOPTERA 



coarse basally and apically, broadly but not deeply reflexed at the 

 sides, the impressions not distinct, being confined to the basal margin 

 at the angles; elytra narrower, a third to two-fifths longer than wide, 

 oval, convex, two-fifths wider than the prothorax, sculptured nearly 

 as in the preceding but more strongly, the tegulae more convex and 

 more polished; flanks less declivous toward the acute lateral bead. 

 Length 14.0-14.2 mm.; width 6.4-6.7 mm. California (Placer Co.), 



Koebele. Three examples exaratus n. sp. 



6 Tegulae large, finely separated and nearly flat inwardly, becoming 

 widely separated, small and prominent only on and toward the 

 flanks and on the posterior declivity. Body stout, convex, dull, 

 the elytra somewhat shining, deep black; head rather large, fully 

 two-thirds as wide as the prothorax, finely, rather closely punctate, 

 with a posteriorly arcuate transverse area from eye to eye, in which 

 the punctures become larger and sparser; rugulosity near the eyes 

 obsolete; antennae rather short; mandibles obsoletely strigose, short, 

 barely at all inwardly arcuate at tip; prothorax transverse, nearly 

 twice as wide as long, the sides broadly rounded, oblique and nearly 

 straight posteriorly, the angles evenly rounded, produced; surface 

 nearly flat throughout, and everywhere rather finely, very closely 

 and strongly punctured, a little more coarsely and rugosely laterally, 

 the impressions obsolete, the side margins scarcely at all reflexed 

 except moderately toward base; elytra oblong-oval, with rather 

 evident though rounded humeri, a third longer than wide, one- 

 half wider than the prothorax. Length (9) 15.5 mm.; width 7.4 

 mm. California (locality not recorded in the Levette collection). 



tegulatus n. sp. 



A Similar but a little less stout, with notably smaller head, obsolete 

 humeri, the sides being broadly rounded to the base and with 

 longer and more slender tarsi, the posterior being three-fourths 

 as long as the tibiae, the second joint nearly two and one-half times 

 as long as wide, instead of two-thirds the tibial length, with the 

 second joint only twice as long as wide as is the case in tegulatus; 

 the thoracic punctures are less close-set medially, and, toward 

 the sides, become much coarser than they are in the preceding. 

 Length (9 ) 14.5 mm.; width 7.0 mm. California (from the same 



source as the preceding) viator n. subsp. 



Tegulae narrower, more convex and more separated internally, becoming 

 small, widely isolated and sharply tuberculiform in fully external 

 half of the elytra; sides of the prothorax with numerous long erect 



setae 7 



7 Body obese, rather convex, deep grayish-black, dull in lustre; head 

 moderately large, three-fifths as wide as the prothorax, moderately 

 finely, strongly, closely punctate and feebly rugulose throughout, 

 with a smoother median patch at the apex of the front; rugulation 

 toward the eyes strong and dense; mandibles strongly arcuate from 

 base to apex, the latter curved inward and acute, the strigae strong 

 and close but rather fine; antennae nearly as long as the head and 

 prothorax, the latter short and broad, nearly twice as wide as long 

 and three-fourths (cf) as wide as the elytra, to a little less (9), 



