MEMOIRS ON THE COLEOPTERA 



lobe more acutely ogival, dark brown, the integuments free from 

 earthy matter like the preceding; pubescence more abundant and 

 even coarser; head nearly similar but with the eyes less transverse 

 from a dorsal viewpoint; prothorax similar and with smooth dorsal 

 patches, except that the widest point is obviously behind the middle, 

 the sides gradually feebly deplanate and not at all thickened, the 

 hind angles much more acute and prominent, obliquely dentiform 

 and the subglabrous narrow median line somewhat cariniform; 

 elytra oval, two-thirds longer than wide, two-fifths wider than the 

 prothorax, unusually acute at apex, the ridges as in the two preceding 

 forms but with feeble indentations representing the punctures, 

 the minute granules bearing the hairs similar; abdomen sparsely 

 punctate, the punctures much larger than in either of the preceding. 

 Length (9 ) 11.5 mm.; width 5.0 mm. Arizona (Huachuca Mts.), 

 Chas. Schaeffer monticola n. sp. 



Form more ventricose than in the three preceding, the prothorax smaller; 

 integuments deep black, the elytra very shining but having the body 

 densely coated throughout with earthy matter in a manner differing 

 from an)' of the preceding species, which are usually wholly free 

 from such coating; pale hairs small and decidedly sparse, not much 

 closer on the ridges; head sparsely, rather finely punctate, the 

 antennae more slender; prothorax scarcely a fourth wider than long, 

 widest slightly behind the middle, the apex deeply and parabolically 

 sinuate and distinctly narrower than the base, the latter feebly 

 arcuato-truncate, slightly oblique at each side, the angles right, not 

 rounded; sides arcuate, feebly sinuate basally; surface sparsely, 

 unevenly punctate, broadly and feebly concave laterally, the edge 

 thickened; elytra barely one-half longer than wide, parallel, oval, 

 widest at the middle, the apex rather prolonged and acute; ridges 

 of the same general form as in the other species but with the first 

 and second confluent only slightly behind the middle, the concavities 

 sparsely but strongly punctured; legs very slender, short as usual. 

 Length (9) 10.8 mm.; width 5.3 mm. New Mexico. 



luteotecta n. sp. 



5 Body slender, gradually broadening to well behind the middle of the 

 elytra (cf ), or with the latter broader, more evenly oblong-oval and 

 widest at the middle (9), the integuments blackish-brown, not 

 coated with earthy matter as a rule, the pale hairs unusually long 

 and relatively slender, though notably sparse, a little closer on the 

 narrow summits of the ridges; head as usual; prothorax but little 

 wider than long, rather more evidently so in the female, widest at the 

 middle, where the sides are more or less subprominently rounded, 

 thence converging and nearly straight to both apex and base, the 

 former deeply, parabolically sinuate, the base broadly arcuato- 

 truncate, with a feeble sinus at each side, the angles slightly obtuse 

 but not at all rounded; surface dull as usual, strongly, sparsely 

 punctate, with a broad and very well defined impunctate median 

 line, and, at each side, about two irregular punctureless spaces, 

 moderately concave laterally, the edge scarcely thickened, having 



