192 MEMOIRS ON THE COLEOPTERA 



at apex, except on the suture; elsewhere it is finer, shorter and blackish; 

 under surface densely punctate and clothed with rather long coarse 

 cinereous pubescence; tibise and tarsi paler than the femora; flat epipleura 

 ending at basal third. Length (cf 9 ) 2.4-3.15 mm.; width 1.5-1.9 mm. 

 New Mexico (Jemez Springs), Woodgate. 



Allied to pruddeni from the Grand Canon, but larger and broader, 

 with more nearly equal two joints of the antennal club and longer, 

 coarser and more conspicuous pubescence of the under surface; the 

 condensations of the paler pubescence of the upper surface are almost 

 exactly as in pruddeni, but the integuments are darker in color. It is 

 represented by a large series. 



Cryptorhopalum tuckeri n. sp. Stout, oblong-oval, rather convex and 

 shining, deep black, the tibise and tarsi rufescent; paler pubescence moder- 

 ately long, loose and not very coarse; head two-fifths as wide as the pro- 

 thorax, rather strongly and closely but not densely punctate, finely and 

 sparsely toward base, the ocellus dark; antennae ferruginous, the two 

 stout basal joints black; club (c?) elongate and evenly oval, its second 

 joint only three-fifths as long as the first, the latter about as long as the 

 entire preceding part of the antenna; prothorax twice as wide as the 

 median length, which is much greater than the sublateral length, the 

 abrupt strong basal lobe transversely truncate; sides converging and 

 strongly arcuate; punctures minute, not close, the surface loosely clothed 

 with pale hairs, excepting in a transverse medial area; elytra short, not a 

 fifth longer than wide, at the humeri much wider than the prothorax, the 

 apex rapidly and obtusely rounded; punctures rather strong, separated 

 by two to three times their diameters; loose pale hairs forming an entire 

 but somewhat irregular fascia near basal third, and, on each elytron, 

 there is a similarly clothed broad subapical spot; toward the suture the 

 dark inconspicuous hairs of the general surface are interspersed with 

 a few scattered pale hairs; under surface strongly and closely punctate 

 and clothed with coarse loose ashy hairs. Length (cf) 2.2 mm.; width 

 1.4 mm. Arizona (Tugson), J. F. Tucker. 



This species is not closely allied to any other but may stand just 

 after reversum in the list. The antennal fossa extends through 

 three-fifths of the thoracic length. 



Cryptorhopalum coloradense n. sp/ Stout and oblong-suboval, very 

 obtuse behind, moderately convex, black, somewhat shining, the elytra 

 rufous, nubilously shaded with black broadly toward base, the black 

 traceable feebly along the suture to the apex; legs pale, the middle and 

 hind femora more or less blackish; paler pubescence cinereous, moderate 

 in length and very loosely aggregated; head small, finely, sparsely punc- 

 tate, more strongly and subrugosely in the middle before the distinct 

 pale ocellus; antennae (9 ) extending to apical two-fifths of the prothorax, 

 ferruginous, the first joint alone black; club oval, not quite as long as the 

 entire remainder, its second joint evidently, though not conspicuously, 



