Coleopterological Notices, III. 137 



longer than the fourth. Prothorax two-thirds wider than long, the apex trun- 

 cate, three-fourths as wide as the base, the sinuations of the latter rather dis- 

 tinct, the basal angles extending posteriorly slightly beyond the median parts, 

 right, not at all rounded, not prominent ; sides broadly rounded anteriorly, 

 feebly convergent and nearly straight thence to the base ; disk widest distinctly 

 before the middle, minutely, very sparsely punctate, the punctures slightly 

 coarser and denser toward the sides, narrowly, feebly impressed in the middle 

 toward base, the basal foveae very small, rounded, deep and almost perforate. 

 Elytra four times as long as the prothorax, and, behind the middle, one-half 

 wider, at the humeri slightly wider than the pronotal disk, the humeri very 

 slightly exposed ; apex rather abruptly and obtusely rounded ; sides broadly 

 arcuate behind ; disk with very deeply impressed series of moderate, rather 

 deep punctures, the intervals convex, minutely, sparsely and confusedly 

 punctate. Under surface very finely, sparsely punctate, the metasternum 

 much more finely and sparsely so than its episterna. Legs moderate in length, 

 the femora rather robust, the first joint of the hind tarsi distinctly shorter 

 than the remainder. Length 8.5 mm.; width 3.4 mm. 



Canada. Cab. LeConte. 



This is a remarkably distinct species, immediately recognizable 

 by the smooth, highly polished, minutely, sparsely punctate surface 

 and deeply impressed, almost sulciform elytral striae. The maxil- 

 lary palpi do not differ much from those of lugubris and analis. 



The narrow lamina separating the anterior coxae is convex longi- 

 tudinally, but comes far from attaining the level of the coxal apices. 



M. analis Lee. — Proc. Am. Phil. Soc, XVII, p. 618. — Elongate-oval, 

 moderately convex, dark piceous-brown ; under surface and antennae paler, 

 brownish-testaceous, the last two abdominal segments darker, piceous ; legs 

 paler, more fiavate ; polished ; pubescence fine, rather sparse, dark and in- 

 conspicuous. Head feebly, evenly convex, rather coarsely, densely, deeply 

 punctate ; eyes moderate, separated by rather distinctly more than twice their 

 width ; antennae two-fifths as long as the body, nearly as in lugubris, but with 

 the third joint very slightly shorter than the fourth. Prothorax two-thirds 

 wider than long, the apex truncate, three-fourths as wide as the base, the 

 latter transverse ; sides broadly, almost evenly rounded throughout ; basal 

 angles obtuse, very narrowly rounded ; disk somewhat coarsely, moderately 

 closely punctate, the punctures finer, feebler and more distant than those of 

 the head, not explanate at the sides, not appreciably impressed in the middle, 

 the basal foveae almost obsolete. Elytra nearly four times as long as the pro- 

 thorax, and, behind the middle, nearly one-half wider, at the humeri very 

 slightly wider than the disk of the pronotum ; humeri not exposed ; apex 

 rather abruptly and obtusely rounded ; sides broadly arcuate behind ; disk 

 with feebly impressed series of small, rather inconspicuous punctures, the 

 intervals feebly convex, finely, confusedly and rather sparsely punctate, the 

 Annals N. Y. Acad. Sci., VI, Nov. 1891.— 10 



