4G6 Coleopterological Notices. 



still more slender depressed form, in the shape of the prothorax, in 

 coloration and still more decidedly in the male sexual characters. 



M. parvullis n. sp. — Oblong-elongate, parallel, moderately depressed, 

 highly polished, black ; legs and antennae dark rufous ; pubescence very 

 short, robust and setiform, extremely sparse, arranged in single lines on the 

 intervals, silvery-cinereous but not conspicuous. Head transverse, feebly con- 

 vex, finely and sparsely punctate ; epistoma narrowly and distinctly sinuate ; 

 upper lobes of eye small ; antennae slender, very feebly incrassate, rather 

 short, distinctly shorter than the head and prothorax, third joint slightly 

 longer than the fourth, tenth distinctly wider than long, the eleventh much 

 Longer than wide, as wide as the tenth. Prothorax about one-half wider than 

 the bead and one-half wider than long ; base and apex equal in width, the 

 former transversely truncate, the latter broadly, distinctly emarginate in 

 circular arc ; basal angles slightly obtuse, not at all rounded ; sides rather 

 strongly arcuate ; disk widest at about the middle, very sparsely and rather 

 finely punctured, a little less sparsely so toward the sides. Scntellum densely 

 punctate, with a very wide impunctate border. Elytra equal in width to the 

 prothorax and nearly three times as long ; sides very feebly arcuate ; base 

 but very slightly wider than that of the pronotum, the humeri very narrowly 

 exposed ; disk with moderately coarse and impressed striae which are finely 

 and rather distantly punctured ; intervals nearly flat, each with a single very 

 regular line of fine, widely distant, setigerous punctures. Abdomen finely, very 

 sparsely punctured. 



Male. — Anterior tarsi moderately but very distinctly dilated, the subbasal 

 joints very short and transverse, densely spongy-pubescent beneath, the third 

 much wider than the second ; intermediate very feebly dilated, narrowly 

 squamulose beneath ; abdomen not appreciably modified, evenly convex 

 toward base. 



Length 3.7-3.9 mm.; width 1.4-1.5 mm. 



New Mexico (Fort Wingate). Dr. Shufeldt. 



This very peculiar little species may be readily distinguished 

 from the next, which belongs to the same aberrant group, by its 

 smaller size, finer and sparser punctuation and more indistinct 

 pubescence. 



M". atlveiia n. sp. — Oblong, moderately depressed, strongly shining, 

 black throughout ; legs dark piceo-rufous ; antennae testaceous ; pubescence 

 moderate in length, pale, rather douse and distinct on the pronotum, arranged 

 hi very even series on the elytra. Head rather strongly transverse, rattier 

 coarsely and densely punctate ; epistoma broadly and feebly sinuate ; upper 

 lobes of eyes moderate, nearly as broad as long ; antennae slender, feebly in- 

 crassate toward apex, a little shorter than the head and prothorax, third joint 

 much shorter than the next two. combined, tenth a little wider than long, 

 eleventh slightly longer than wide. Prothorax rather transverse, two-thirds 



