Coleopterological Notices, IV. 381 



long, subparallel and broadly rounded at the sides, distinctly con- 

 stricted and broadly subtubulate at apex, very densely, deeply punc- 

 tate, without distinct impunctate area. Elytra at base fully one- 

 third wider than the prothorax, parallel and nearly straight at the 

 sides, rounded in apical third, the sutural notch small but deep and 

 angulate ; strial punctures moderately coarse, deep, somewhat close- 

 set, each bearing a distinct elongate squamule. Length 2.1-3.3 mm. ; 

 width 0.9-1.3 mm. 



Illinois and Kansas. Easily distinguishable by the narrow con- 

 vex form, dark rufo-ferruginous color and the vestiture, which is 

 dense and distinctly squamiform toward the sides of the body, but 

 more hair-like along the median parts of the upper surface. The 

 tooth of the anterior femora is very small but distinct, that of the 

 others nearly obsolete. In one narrow male there is a small denuded 

 spot in the middle of each of the lateral squamose vittse of the pro- 

 notum. 



26 D. marmoreus n. sp. — Oval, convex, rather dull, black ; antennas, 

 legs and elytra in a very feebly defined sublateral vitta rufescent ; vestiture 

 dense, consisting of narrow recumbent lanceolate scales, white in color in two 

 narrow approximate pronotal vittse and a small median spot at each side, and, 

 on the elytra, along the suture and in very uneven discal spots, elsewhere 

 subdenuded and piceous-black. Head and beak extremely densely punctate, 

 dull, squamulose, the latter longitudinally rugose but scarcely carinulate, 

 thick, feebly arcuate, not quite as long as the head and prothorax ; antennae 

 inserted just behind apical third, the basal joint of the funicle as long as the 

 next three, club moderate, densely pubescent throughout. Prothorax small, 

 one-third wider than long, subparallel, evenly and moderately arcuate at the 

 sides, becoming more convergent, nearly straight and not visibly constricted 

 anteriorly ; apex broadly arcuate, nearly three-fourths as wide as the base ; 

 disk rather coarsely, very deeply and extremely densely punctate, without 

 trace of impunctate line. Elytra at base nearly one-half wider than the pro- 

 thorax, more than three times as long as the latter, acutely parabolic in apical 

 two-fifths, the sutural notch very small and feeble, strial punctures moderately 

 coarse, very deep, close-set ; intervals minutely, indistinctly punctate. Abdo- 

 men not coarsely but deeply, very densely punctate. Legs short ; femora stout, 

 picescent toward apex, the tooth small but distinct on all, the intermediate and 

 posterior with a large polished glabrous area on the posterior side in basal half. 

 Length 3.2 mm. ; width 1.4 mm. 



New Mexico. 



This is an isolated species, comparable only with squamosus, but 

 differing greatly in its rather more robust form, stout beak, black 

 color and strongly marked maculation of linear white scales. 



