Coleo2:)terolofjical Notices, VI. 5*73 



just behind the middle, where the sides are rather strongly rounded, 

 thence feebl}' convergent and nearl}' 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 broadly and rather feebly arcuate; disk minutel}' and feebh' 

 rugulose, very coarsely and deeply reto-rugose near the sides, finely 

 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 Ba}' 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- 

 abl}^ 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 el^^tra 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. I>. obtlisiis n. sp.— Oblong, stout, rather strongly convex, polished, 

 black; femora black, the tibite and tarsi in great part dark piceo-rufous ; an- 

 tennas 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. Heftd strongly transverse, fully three-fourths as wide 

 as the ijrothorax, feebly and very remotely biimpressed at apex, finely but 

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

 polished; epistoma short, truncate, pale and coriaceous; labruni 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 gradirally pointed. Pro- 

 thorax four-fifths wider than long, the sides evenly and stronglj^ arcuate 

 throu^lumt, slightly more convergent toward apex; all the angles obtuse and 

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

 truncate; edges finely serrulate; disk smootli and polislied, finely and sparsely 

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

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

 prothorax, feebly arcuate at the sides and scarcely visibly wider l^ehind the 



