150 MEMOIRS ON THE COLEOPTERA 



as long as the tibiae. ' Length (cf) 10.5 mm. ; width 5.1 mm. Texas 



(El Paso), Dunn. A single example pusilla n. subsp. 



Body much more elongate, oval, darker in color and larger, more shining, 

 the male distinctly more slender than the female, paler in color and 

 of a more flavate brown; head nearly as in melina, the clypeus not 

 quite so long and the suture more deeply sinuate medially; prothorax 

 also nearly as in that species, except that it is more nearly equal in 

 width to the elytra, the latter more elongate, a third longer than wide, 

 evenly and less obtusely rounded behind, almost similarly sculptured; 

 pygidium, as usual, with a few moderate hairs basally. Female 

 much larger, pale castaneous in color, shining, the head only a little 

 smaller and almost half as wide as the prothorax, closely and rather 

 coarsely punctate, the clypeus almost similar in form, the suture 

 less sinuate, sometimes obliterated medially; antennal club straight, 

 very slender, a little shorter than the stem; prothorax less transverse, 

 more rounded at the sides and more finely, sparsely punctate; 

 elytra fully a third longer than wide, in outline almost as in the male 

 but more obtusely rounded at apex, the sculpture coarser and deeper 

 but sparse, the interspaces very smooth and shining, the costae 

 convex and distinct; pygidium more transverse, less convex, more 

 angulate at tip and having a few extremely short and stiff, widely 

 scattered hairs basally; hind tarsi barely evidently longer than the 

 tibiae. Length (i cf, 5 9 , the type being a female) 12.0-14.0 mm. 

 width 5.8-6.8 mm. New Mexico (Jemez Springs and Albuquerque). 



facUis n. sp. 



Body rather narrowly elongate-oval, small in size, convex, not very 

 shining, pale brownish-flavate in color; head (cf) very slightly 

 more than half as wide as the prothorax, the eyes convex, prominent, 

 separated by but little more than twice their own width; punctures 

 deep, rather strong, moderately close anteriorly, sparse and smaller 

 basally: clypeus only one-half wider than long, parabolic, with sub- 

 truncate and arcuate apex, the margins all slightly reflexed, the apex 

 slightly more, the surface shallowly punctato-rugulose, the suture 

 fine but evident throughout, strongly sinuate at the middle; antennae 

 as usual; prothorax four-fifths wider than long, of the usual form, 

 the punctures fine, sparse, but little larger or less sparse laterad; 

 scutellum pointed, somewhat longer than wide, sparsely and ob- 

 scurely punctate; elytra long, fully two-fifths longer than wide, 

 somewhat wider than the prothorax, unusually rounded behind 

 from near the middle, the punctures rather small, shallowly im- 

 pressed and unusually obscure; pygidium with a few short hairs 

 basally; hind tarsi less than one-half longer than the tibiae. Female 

 shorter than the male, the head much smaller, the clypeus notably 

 shorter and the suture less sinuate; eyes much smaller and less 

 prominent; antennal club scarcely more than half as long; prothorax 

 more nearly twice as wide as long, the punctures laterally coarser; 

 elytra nearly similar in general outline and sculpture and also in the 

 peculiarly dull lustre, but much shorter, only a fourth longer than 

 wide, more distinctly wider than the prothorax; pygidium smoother, 

 more shining and apparently glabrous; hind tarsi very slender, equal 



