Coleopterologieal Notices, VI. &35r 



fully two-lifths as long as the body, the basal joint not paler. Prothorax 

 scarcely as wide as the head and not <iuite as long as wide, strongly Init not 

 very coarsely or densely granulato-punotate, the surface shining through the 

 vestiture; sides strongly rounded anteriorly, thence distinctly convergent and 

 feebly sinuate to the basal margin, Avliich is not dilated; apical constriction 

 distinct, the lobe extremely short; canaliculation fine but very deep and dis- 

 tinct; lateral oblique impressions feeble. Elytra twice as wide as the pro- 

 thorax, distinctly more than twice as long as wide, parabolic in apical fourth; 

 humeri trans\'ersely, broadly rounded to the prothorax, the intrahumeral im- 

 pression short, basal and very distinct; disk strongly but only moderately 

 coarsely punctate, giving a subrugose appearance, the interspaces not distinctly 

 punctulate. Under surface tinely, densely punctate and pubescent. Length 

 6.5-8.0 mm. ; width 1.8-2.2 mm. 



Indiana. 



In its larger, more globose and less distant eyes, shorter, less 

 I>rominent tempora and generall}^ more shining surface, this 

 species departs from the common type of the Pacific coast and 

 approaches mellyi. It differs from mellyi in the small nuclei of 

 pubescence scattered irregularly and indefinably over the elytra, 

 and in the smaller, more strongly and coarsely sculptured and 

 more deeply canaliculate prothorax. Four specimens, with very 

 feeble sexual characters. 



S. impressicollis. — Black and moderately stout, the elytra shining 

 through the vestiture, which is rather sparse except in the condensed spots; 

 legs and antenna; black throughout. Head densely puuctato-rugose and dull, 

 the vestiture dense ; eyes moderate, separated by distinctly more than twice 

 their own width, the tempora fully as prominent as the eyes and about one- 

 half as long; antenna; moderately slender, about two-fifths as long as the body. 

 Prothorax as long as wide, rounded on the sides antei'iorly, sinuate thence ta 

 the basal margin, which is scarcely dilated and defined throughout dorsally by 

 a distinct groove; apical constriction fine, distinct; canaliculation fine, deep, 

 impressed; lateral oblique impressions strong; sculpture rugose. Etytra 

 slightly more than twice as wide as the prothorax, a little more than twice as 

 long as wide, quite perceptibly wider to apical fourth, then parabolically 

 rounded, narrowly and gradually dehiscent behind, the sutural angles obtusely 

 rounded; humeri broadly, evenly rounded, the impression feeble; punctures 

 coarse, close, the surface subrugose; interspaces shining and not distinctly 

 punctulate. Abdomen minutely, extremely densely punctate and i)ubescent. 

 Length 6.3 mm. ; width 2.0 mm. 



California (Hoopa Val., Humboldt Co.). 



The single specimen is a female, and, if my memory serves, was 

 taken ver^- nearly or quite at the same time and place as the single 

 male of indutus, so that for some time I considered them to be 



