134 Coleopterological Notices, III. 



slender, not attenuate, nearly one-half as long as the body, the intermediate 

 joints fully twice as long as wide, third distinctly shorter than the fourth. 

 Prothorax about two-thirds wider than long ; sides nearly parallel, feebly 

 arcuate, rounded anteriorly, the apex feebly arcuate and but slightly narrower 

 than the base, the latter transverse, the sinuations almost obsolete ; basal 

 angles slightly obtuse, not at all rounded ; disk transversely convex from base 

 to apex, not impressed, coarsely, extremely densely, deeply punctate through- 

 out, the punctures nearly in mutual contact ; basal fovea? obsolete. Scutellum 

 rather short and broad. Elytra about three times as long as the prothorax, 

 and, throughout, about one-fifth wider, parallel, obtusely rounded behind ; 

 disk cylindrically convex, polished, with almost unimpressed series of small 

 but deep, close-set punctures, the intervals extremely minutely, sparsely 

 punctate. Abdomen very minutely, sparsely punctate, the metasternum more 

 coarsely but sparsely so, the prosternum and propleurse not very coarsely, but 

 extremely densely so. Legs rather short and robust, but otherwise normal. 

 Length 4.5 mm. ; width 1.8 mm. 



New York. Cab. LeConte. 



The unique type represents a very isolated species, not remotely 

 approaching any other, although in general somewhat recalling 

 marginata of the next group. I do not know the sex of the speci- 

 men described, but it is apparently the female. 



M. marginata Lee— Proc. Am. Phil. Soc, XVII, p. 618. — Oblong- 

 elongate, subparallel, moderately convex, black throughout ; antennae and 

 legs concolorous ; elytra with a rather distinctly limited red spot at the 

 humeri, polished, the pubescence short, fine, moderately dense but not con- 

 spicuous. Head feebly convex, coarsely, deeply, rather densely punctate, the 

 punctures separated by nearly their own diameters ; eyes small, separated by 

 about three times their own width ; antennae short and robust, a little more 

 than one-third as long as the body, joints after the third strongly obconical, 

 the latter cylindrical and fully as long as the fourth, intermediate joints nearly 

 one-half longer than wide, toward apex gradually attenuated. Prothorax one- 

 half wider than long ; sides nearly parallel, rather feebly, evenly arcuate, 

 rounded at apex, the latter four- fifths as wide as the base, truncate; base 

 transverse, the angles very slightly obtuse but not rounded ; disk narrowly, 

 strongly explanate along the sides, coarsely, deeply punctate, the punctures 

 separated by from once to twice their own widths, but densely aggregated in a 

 large irregular spot in the middle at each side ; basal fovese large and shallow 

 but distinct. Elytra about three and one-half times as long as the prothorax, 

 and, near the middle, about one-third wider, at base just visibly wider than 

 the base of the prothorax ; humeri right, narrowly rounded ; apex abruptly 

 and obtusely rounded ; disk with very feebly impressed even rows of small 

 deep close-set punctures, the series becoming deeper and the punctures larger 

 toward the suture ; intervals scarcely convex, finely, sparsely and unevenly 



