12 MEMOIRS ON THE COLEOPTERA 



separated toward the sides; scutellum small, longer than wide, acute, 

 with rounded sides, nearly nude; elytra a fourth longer than wide, 

 near basal third but slightly wider than the prothorax, the sides 

 continuing the sides of the latter, thence gradually narrowing, with 

 broadly, then strongly, rounding sides to the tip; punctures not 

 coarse but deep, sparse, larger and subserial in arrangement toward 

 the sides, becoming finer and still sparser in a few indefinite, smoother 

 and rather more shining areas on the upper part of the surface; 

 under surface convex, densely and coarsely cribrate. Length 3.8 

 mm.; width 2.2 mm. Northern Pacific coast regions. [Morychus 

 aciimi>iatnsMann., Bull. Mosc., 1852, p. 341].. .acuminatus Mann. 



Condensed areas on the elytra abruptly defined, the smooth areas specu- 

 liform and almost impunctate 2 



2 Form shorter and less posteriorly acuminate than in the preceding, 

 broadly oval, very convex, black, with feeble aeneous to bright 

 metallic green lustre, the under surface and legs deep black through- 

 out, the tarsi not materially paler; pubescence of the upper surface 

 short, rather coarse, recumbent, without intermixed erect hairs, 

 very uneven in distribution, close on the punctured part, almost 

 wanting in the smooth areas, intermingled fulvous and subcinereous 

 in color, very short, sparse and cinereous on the under surface; 

 head evenly convex, coarsely and densely punctured throughout; 

 prothorax more than twice as wide as long, strongly narrowed from 

 base to apex, with feebly subsinuate sides, very strongly declivous 

 toward the apical angles, which are produced and acute as usual; 

 surface finely, closely punctate medially, with the pubescence 

 radial in arrangement, coarser and rather sparser toward the sides; 

 scutellum very small; elytra about, a fifth longer than wide, two and 

 three-fourths times as long as the prothorax and subequal thereto 

 in width, the sides parallel and feebly arcuate, gradually obtusely 

 rounding from about the middle, the apex moderately obtuse; 

 punctures densely aggregated in large areas, leaving a few mirror- 

 like spots and streaks, which are smooth and very minutely, re- 

 motely punctured, the condensed areas having the surface generally 

 somewhat chagrined; under surface coarsely but rather less densely 

 cribrate than in acuminatus. Length 3.65 mm.; width 2.1 mm. 

 California (Arcata, Humboldt Co.) formosus n. sp. 



Form and sculpture nearly as in the preceding, black, the upper surface 

 strongly shining throughout and somewhat bronzed, the under sur- 

 face and legs black, the tarsi piceous; vestiture above short, de- 

 cumbent, rather sparse, mottled confusedly bright fulvous-red 

 and cinereous, still shorter, sparser and cinereous beneath; head 

 strongly and densely punctate, evenly convex; prothorax nearly 

 as in the preceding in form, sculpture and pubescence; elytra nearly 

 as in the preceding but still shorter, only very little longer than wide 

 and more broadly and obtusely rounded behind, the punctures 

 coarser, deep, evenly distributed and separated by not quite twice 

 their own diameters everywhere except in a few generally rounded 

 spots which are mirror-like and finely, very remotely punctulate, 

 the surface throughout the coarsely punctured areas smooth and 



