1 88 MEMOIRS ON THE COLEOPTERA 



antennae parallel and not gradually distally thickened; it has the 

 head much smaller and the prothorax relatively narrower and less 

 inflated than in complanata or tacomce, also much more narrowed 

 to the apex. 



Placusa turbata n. sp. Stout, feebly convex and obtusely fusoid, 

 slightly shining, the fine and only feebly asperate punctures separated 

 by three or four times their own width on the pronotum, slightly closer 

 and more asperate on the elytra, finer and feebler, but dense and more 

 confused on the abdomen; pubescence short but rather coarse, palish; 

 color black, the elytra dark castaneous-red almost throughout, the legs 

 pale piceous-brown; head small, transverse, scarcely three-fifths as wide 

 as the prothorax, the eyes moderate, not very convex, at two-thirds their 

 length from the base, the tempora strongly arcuate, becoming parallel 

 and as prominent as the eyes behind the latter; antennae short, black, 

 gradually though but just perceptibly thicker from the fifth joint, third 

 a little shorter and more narrowed basally than the second, fourth dis- 

 tinctly, the outer joints four-fifths, wider than long, all unusually parallel- 

 sided, the last very obtuse, apparently somewhat swollen; prothorax 

 four-fifths wider than long, distinctly and evenly convex, unimpressed 

 except a very faint fine transverse ante-scutellar streak, in outline nearly 

 as in strata, except that the sides are much more arcuate, becoming parallel 

 near the base, the apex distinctly narrower than the base; elytra mod- 

 erately transverse, with strongly diverging straight sides, at base barely as 

 wide as the prothorax, at apex much wider, the suture a third longer; ab- 

 domen at base evidently narrower than the elytra, feebly tapering and with 

 barely arcuate sides, the tergites as in the preceding, the sixth (cf.) very 

 broadly and feebly sinuato-truncate throughout the width at apex, the 

 lateral angles slightly more than right but not modified; at the middle 

 there is a ^ery obtuse cusp and, at each side of the latter, a very small 

 obtuse tooth; on the disk just behind the middle there are two small 

 approximate tubercles; basal joint of the hind tarsi fully as long as the 

 next three combined. Length 2.1 mm.; width 0.7 mm. British Co- 

 lumbia (Metlakatla), Keen. 



Somewhat resembles the preceding but differs decidedly in sculp- 

 ture and in the more arcuate sides of the prothorax; also in the 

 smaller eyes, with much less retracted tempora. 



Placusa petulans n. sp. Narrower, feebly convex, rather dull, finely, 

 closely, asperately punctate, the abdomen more finely but closely, less 

 asperately and evenly so throughout and more shining; pubescence short; 

 color piceous, the legs pale; head but slightly transverse, fully two-thirds 

 as wide as the prothorax, the eyes large, rather prominent, at a third 

 their length from the base, the tempora much less prominent and rapidly 

 arcuato-converging to the base; antennae piceous, notably short, rapidly 

 incrassate from the fourth to sixth joints, thence more parallel to the 

 tip, the third much shorter and thinner than the first, rather constricted 

 at base, fourth transverse, the tenth three-fourths wider than long, the 



