730 NEW NORTH AMEBICAN COLEOPTEEA—LINELL. volxviu. 



obtusely tridentate, upper tooth small, apical tooth in the axis of the 

 tibia, obtuse at apex. Posterior feinora compressed; tibia' with an 

 oblique fine acute ridge at middle, furnished with long, slender, not 

 closely set spines; basal ridge very short, with two or three small 

 spines; apex squarely truncate exteriorly, with a dense row of fine 

 spines; spurs movable, obtuse at apex; the exterior one somewhat 

 longer. Tarsi, especially on the front legs, nuich longer than the 

 tibiit', clothed beneath with dense, long, somewhat stiff hairs. Claws 

 subequally cleft, inferior part a little broader and oblique at apex. 



Length, 12 mm. Two examples, collected May 24, 1895, by C. H. 

 Tyler Townsend, at Brownsville, Texas. 



Types.— 1^0. 573, U.S.N.M. 



Fi'm<de. — Differs from the male described above as follows: Color 

 darker ferruginous, infuscate on head and thorax, punctuation dis- 

 tinctly coarser throughout, clypeus less concave, coarselj' and densely 

 punctate. Antenna! club slightly shorter. Pygidium longer, gibbose 

 at middle. Last ventral convex, subemarginate at apex. Legs shorter 

 and stouter; anterior tibia^ with upper tooth stronger, apical tooth 

 obliquely truncate and notched at apex; posterior tibial spurs longer, 

 more lanceolate. 



One example, collected June 11, at Brownsville, Texas, by Prof. C. H. 

 Tyler Townsend. 



Type.— 1^0. 574, U.S.N.M. 



LISTROCHELUS PULCHER, new species. 



3fale. — Ovate, distinctly broader behind, dark rufocastaneous, densely 

 covered with a silvery-gray coat, except the head, disk of thorax, hume- 

 ral umbones, apex of i^ygidium and legs ; clothed with sparse, short 

 hairs in the punctures. Front flat, densely and coarsely, not conflu- 

 ently punctate; clypeal suture finely impressed, bisinuate; clypeus 

 concave, less densely punctate; margin semicircularly rounded and 

 broadly reflexed. Antennae ferruginous, 10-jointed; clnb longer than 

 the fnnicle. Thorax nearly twice broader than long, narrower at apex^ 

 convex, shining on the glabrous median part, regularly, moderately 

 densely, not coarsely, punctate; sides regularly arcuate, feebly ser- 

 rate and fimbriate with long hairs; angles obtuse. Elytra moderately 

 coarsely, sparsely punctate; cost* obsolete; margin sparsely fimbriate. 

 Pygidium convex, sparsely punctulate, subtruncate at apex. Meta- 

 sternum and the coxa? clothed with long, dense, yellowish white hairs. 

 Abdomen sparsely and finely punctulate; second and third segments 

 slightly concave at middle, fourth with a median transverse gibbosity, 

 longitudinally strigose; fifth gibbous at base, on the sides with two 

 or three oblique elevated carin;e, strongly constricted on a})ical half; 

 sixth short, transversely constricted, with sparse hair-bearing punc- 

 tures; apical margin ciliate. Legs moderately stout, sparsely bristly; 

 anterior tibiie strongly tridentate. Posterior tibi;e scarcely fimbriate. 



