142 Coleopterologieal Notices, III. 



twice as lone:, and nearly twice as wide as the third, the sides mak- 

 ing- an angle at the base of about eighty degrees, the inner scarcely 

 one-half as long as the outer, and the outer but slightly longer than 

 the apex, the angles not rounded and the bounding lines nearly 

 straight. 



This species may be easily known by its dark brown color, rather 

 long dense and dark brown pubescence and small eyes. 



M. iievadensis n. sp. — Oblong, broad, rather depressed, polished, dark 

 piceous-brown above, the under surface, legs and antennje paler and more 

 flavate ; pubescence very short and sparse, pale but inconspicuous. Head 

 feebly convex, finely, sparsely punctate ; eyes small, separated by scarcely 

 four times their width ; antennae robust, scarcely two-fifths as long as the 

 body, the joints obconical and nearly three-fourths longer than wide, the 

 third not distinctly longer than the fourth. Prothorax three-fourths wider 

 than the head and four-fifths wider than long, the apex truncate or very 

 feebly sinuate, rather distinctly narrower than tlie base, the latter transverse ; 

 sides broadly rounded : basal angles obtuse and slightly rounded ; disk some- 

 times \)roadly feebly impressed along the middle, the impression evanescent, 

 very finely, sparsely punctate, the punctures becoming denser toward the 

 sides ; basal fovea large, feeble and indefinite. Ehjtra three times as long as 

 the prothorax, at base rather distinctly wider than the disk of the latter, and, 

 at the middle, about one-third wider, rather abruptly and obtusely rounded 

 behind ; humeri very narrowly exposed ; disk finely, sparsely punctured, 

 with feeble traces of impressed lines toward the suture, but without trace of 

 punctured series. Under surface polished, very finely and sparsely punctate. 

 Lerfs moderate in length, hind tarsi rather slender, much shorter than the 

 tibije, with the basal joint four times as long as wide and three-fourths as long 

 as the remainder. Length 4.8 mm. ; width 2.1 mm. 



Nevada (Reno). 



This species belongs to a small group peculiar to the Pacific coast, 

 including also piiMpennis and crassidipes ; it is readily distinguish- 

 able from either of these by its much broader form, more transverse 

 prothorax, distinctly larger eyes and complete absence of punctured 

 series. One specimen has two discal fovea? on the prothorax, of an 

 adventitious nature, similar to those which appear occa.'T-ionally 

 throughout the Tenebrionidte. The coxie are similar to those of 

 piibipemn.s, but the palpi are rather shorter and more robust. 



in. crassillipes n. sp. — Rather slender, snboval, moderately convex, 

 pale ochreous-fiavate throughout, polished ; pubescence rather short and 

 coarse, sparse, pale ochreous-fiavate in color. Head feebly convex, finely, 

 sparsely punctate, the eyes small, lateral, transverse, not prominent, sepa- 

 rated above by between four and five times their width ; antennae very robust, 



