ii8 Memoirs on the Coleoptera 



a few feeble longitudinal plicae at the sides, the anterior impressions 

 short, shallow; antennae black, distinctly more than half as long as 

 the body; prothorax not quite a third wider than long, in general 

 outline and other characters nearly as in humile, except that the 

 basal foveae are larger and more broadly impressed, finely and 

 feebly rugulose; elytra oblong, rather convex, rounding in about 

 apical third, the sides rapidly rounded at base, more so than in 

 humile, two-fifths longer than wide, two-fifths wider than the pro- 

 thorax; striae not very fine, rather deep, smooth and impunctate, 

 the intervals broadly convex, the striae not so fine, smoother and 

 deeper than in humile, the three dorsal punctures as usual; anterior 

 male tarsi very narrow, scarcely at all dilated though squamulose 

 beneath. Length (cf 9) 6.2-6.9 mm.; width 2.6-2.85 mm. 

 Washington State (Wilbur), — Hyslop. Communicated by Mr. 

 Wade. Four examples insueta n. sp. 



12 — Prothorax strongly transverse and with parallel and strongly 

 rounded, broadly reflexed sides. Body stout and oblong, rather 

 strongly convex, deep black throughout the body and all appendages, 

 shining; head relatively small, but little over half as wide as the 

 prothorax, slightly elongate and with prominent eyes; impressions 

 elongate, slightly oblique; antennae barely longer than the head 

 and prothorax, the third joint just visibly shorter than the fourth; 

 prothorax nearly one-half wider than long, parallel, widest at the 

 middle, with strongly and evenly rounded sides, the angles very 

 broadly rounded; base arcuate laterally, much wider than the 

 deeply sinuate apex; impressions barely traceable, the stria fine; 

 foveae elongate, deeply impressed, sparsely punctate, the surface 

 thence to the sides — which are but little more reflexed basally — 

 nearly flat and sparsely punctate, the punctures extending along the 

 reflexed side margins almost to the apex; elytra oblong, nearly 

 three-fifths longer than wide, less than one-half wider than the 

 prothorax, the nearly straight sides rounded basally; apex very 

 rapidly obtuse, with rather short and feeble sinus; striae fine, 

 impunctate, impressed, strongly and more coarsely so at apex, the 

 fifth indented at apical fifth; intervals broadly convex, the third 

 with four or five punctures; met-episterna twice as long as wide; 

 tarsi slender, deeply sulcate laterally. Length (9) 9.4 mm.; 

 width 4.0 mm. Minnesota (Duluth). A single example, taken by 

 the writer debiliceps n. sp. 



Prothorax but slightly transverse, generally widest somewhat before the 

 middle. Pacific coast regions 13 



13 — Elytra notably short, about two-fifths longer than wide; surface 

 obscurely aeneous. Body short, oblong, only moderately convex, 

 black, the appendages black, the palpi pallescent apically; surface 

 shining, the elytra rather alutaceous; head rather large, fully three- 

 fifths as wide as the prothorax, the eyes moderate, the impressions 

 feeble; front with two feeble rounded impressions between the 

 eyes; antennae slightly less than half as long as the body; prothorax 

 large, nearly two-fifths wider than long, the sides broadly arcuate, 

 a little straighter basally, finely reflexed, but little more so basally, 



