112 Memoirs on the Coleoptera 



2 — Elytral strise finely but evidently punctulate 3 



Elytral stricC never very evidently punctulate 6 



3 — Base of the prothorax much wider than the deeply and rather nar- 

 rowly sinuate apex 4 



Base of the prothorax not or but little wider than the apex, which is 

 relatively wider than in the preceding section 5 



4 — Body rather stout, oblong, convex, deep black and polished in both 

 sexes, the legs piceo-rufous; head three-fifths as wide as the pro- 

 thorax, with rather prominent eyes and moderate impressions, very 

 slightly elongate; palpi blackish and very slender; antennae black 

 throughout, slender, more than half as long as the body, the third 

 joint not quite as long as the fourth; prothorax a third wider than 

 long, the parallel sides rather strongly, evenly rounded throughout 

 and well reflexed, more widely and strongly so at base, the angles 

 very obtuse and blunt, often rather well defined at tip; base broadly 

 arcuate laterally; impressions feebly traceable, the stria fine, entire; 

 fovese rugulose, broadly linear, short and deeply impressed, well 

 separated from the reflexed sides; elytra one-half longer than wide 

 to somewhat less, t.wo-fifths wider than the prothorax, the parallel 

 sides more rounded at base; apex gradually broadly ogival, with 

 rather short and feeble sinus; striae moderately coarse, impressed, 

 more deeply so toward apex, the intervals distinctly convex, the 

 third with the punctures moderate, the two anterior usually near 

 the third stria, the third near the second; met-episterna twice as 

 long as wide; anterior male tarsi pale and only very slightly dilated. 

 Length (cf 9 ) 8.0-9.7 mm.; width 3.4-3.8 mm. Connecticut to 

 Idaho (Cceur d'Alene). Abundant. [PI. maurus Hald.; scutellaris 

 Say, is said to be the same by LeConte ] melanarium Dej. 



Body in form, size, color, lustre and striation almost as in melanarium 

 but somewhat broader, with the prothorax more transverse and 

 with much more strongly arcuate sides and more obliterated basal 

 angles; oblong-suboval, rather convex, polished, deep blaek; head 

 rather elongate, much narrower than the prothorax, with the eyes 

 not so large as in melanarium and very much less convex, not at all 

 prominent; antennae nearly similar; prothorax a third wider than 

 long, widest at the middle, the sides, strongly, subevenly arcuate, 

 the basal angles very broadly rounded and obliterated; base arcu- 

 ate; margins broadly reflexed, more strongly at base, the foveae 

 broadly impressed, nearly smooth, with a deeper lineate part widely 

 separated from the sides; impressions and stria nearly as in melan- 

 arium; elytra as in the preceding in form, relative proportions and 

 striation. Length (9 ) 9-0 mm.; width 4.0 mm. Massachusetts, — 

 Leng. [PI. Icevis \\ Lee] molestum Lee. 



Body narrower than in either of the preceding, with smoother and some- 

 what bronzy elytra, having much finer striae and flat intervals; 

 deep black, polished, the legs and epipleura with somewhat rufo- 

 piceous tinge, the elytra obscurely bronzed; head not three-fifths as 

 wide as the prothorax, rather elongate, with remarkably convex and 

 prominent eyes, the anterior impressions small; antennae long and 

 slender, deep black throughout; prothorax a third wider than long, 



