Goleopterological Notices, VI. 573 



just behind the middle, where the sides are rather strongl}- rounded, 

 thence feebl}- convergent and nearly straight to the basal angles, 

 which are obtuse but not rounded, and strongly convergent and 

 distinctly sinuate to the apical angles, which are obtuse but only 

 slightly blunt; apex arcuato-truncate, much narrower than the base, 

 which is broadh' and rather feebly arcuate; disk minutely and feebly 

 rugulose, very coarsely and deeply reto-rugose near the sides, flneh'^ 

 and somewhat closely punctate; side margins slightly serrulate. 

 Elytra large, three-fifths longer than wide, about one-third wider 

 than the prothorax, slightl}' wider at apical third than at base 

 and with the sides slightly arcuate ; apex obtusely' parabolic ; 

 punctures fine, subrugose and rather close-set, the interspaces 

 shining. Abdomen minutely and densely punctulate, sparsely 

 luteo-pubescent. Length 3.7 mm.; width 1.5 mm. 



Hudson Bay Territory, Colorado and Arizona. The descrip- 

 tion is drawn from a male taken in the alpine regions of Colorado, 

 and the two similar specimens before me from " Arizona,-' prob- 

 ably inhabited the high mountain lands if the labels are correct. 

 The allusion to cinereous hairs in the description of LeConte is 

 erroneous as far as the elytra are concerned. 



The ungual appendages are thick and subglobular, unusually 

 developed for this genus, but seem to be attached in rather less 

 than basal half of the claws. 



2. D. obtusus u. sp.— Obloug, stout, rather strongly convex, polished, 

 black; femora black, the tibiae and tarsi in great part dark piceo-ruf ous ; an- 

 tennfe piceous, gradually testaceous toward base, the first joint again a little 

 darker; pubescence short, sparse, cinereous, intermixed throughout with rather 

 numerous and moderately long erect black hairs, which bristle irregularly also 

 along the side margins. Head strongly transverse, fully three-fourths as wide 

 as the prothorax, feebly and very remotely biimpressed at apex, linely birt 

 strongly punctate, densely so toward the sides, the interspaces smooth and 

 polished; epistoma short, truncate, pale and coriaceous; labrum deflexed, 

 large, transverse and truncate; eyes moderate in size, rather prominent; an- 

 tennae long and slender, filiform, nearly as long as the head and prothorax, 

 the joints slightly elongate, the eleventh elongate and gradually pointed. Pro- 

 thorax four-fiftlis wider than long, the sides evenly and strongly arcuate 

 throughout, slightly more convergent toward apex; all the angles obtuse and 

 slightly blunt; apex a little narrower than the base, both feebly arcuato- 

 truncate; edges finely serrulate; disk smooth and polished, finely and sparsely 

 punctate, becoming abruptly coarsely and deeijly reto-rugose near the sides. 

 Elytra short, scarcely two-fifths longer than Avide. one-third wider than the 

 prothorax, feebly arcuate at the sides and scarcely visibly wider behind the 



