Coleopterological Notices, III. 141 



Idaho ; California (Los Angeles). 



The last joint of the maxillary palpi is moderately robust, scarcely 

 twice as long as wide, the two sides making an angle of about sixty 

 degrees at base, the inner about one-half as long as the outer and 

 three-fourths as long as the apex. The anterior coxa? and extremely 

 thin prosternal lamina are nearly as in longipevnis, from which the 

 ])resent species can at once be known l)y its more slender depressed 

 form, small head and prothorax and long posterior tarsi, with un- 

 usually short basal joint. 



The specimen from California has the head, and to some extent 

 also the prothorax, much more densely punctate than that from 

 Idaho, and the head is a little larger in the former. These differ- 

 ences are probably in great part sexual, and I think generally but 

 little reliance is to be placed upon degree of ]iunctuation in the 

 present genus. The genera with lobed tarsi are much more con- 

 stant in specific characters. 



M. pubipennis Lee. — Proc. Am. Phil. Soc, XVII, ja. 617.— Parallel, 

 moderately convex, polished, dark brown throughout; pubescence dark, fine, 

 semi-erect, rather dense. Head feebly convex, finely, sparsely punctate ; eyes 

 small, lateral, transverse, above separated l)y nearly five times their vvidtli ; 

 antennae two-fifths as long as the body, rather robust, joints obconical, gener- 

 ally one-half longer than wide, the third a little longer than the fourth. Pro- 

 thorax but slightly more than one-third wider than the head, one-half wider 

 than long, the apex truncate, very nearly as wide as the base, the latter 

 transverse ; sides feebly arcuate throughout, a little more strongly so ante- 

 riorly, feebly convergent thence to the basal angles, which are obtuse but not 

 rounded ; disk widest a little before the middle, somewhat finely and sparsely 

 but very distinctly punctate, broadly, feebly impressed in the middle toward 

 base, also feebly impressed or subexplanate near the basal angles ; basal fovese 

 not noticeable. Eli/tra fully three times as long as the prothorax, and, at the 

 middle, just visibly wider ; humeri but very slightly exposed; apex rather 

 gradually, evenly ogival ; sides parallel, very feebly arcuate ; disk with very 

 feebly impressed series of fine, rather approximate punctures, which become 

 obsolete toward the sides and apex ; intervals throughout very finely, un- 

 evenly and rather densely punctate. Under surface finely, sparsely punctate. 

 Leys rather short, the femora somewhat stout; hind tarsi much shorter than 

 the tibise, with the basal joint much shorter than the remainder. Length 4.7 

 mm. ; width 1.8 mm. 



California (southern). 



The anterior coxte are moderate in size, not very prominent, and 

 separated throughout their depth by a narrow, longitudinally con- 

 vex lamina. The fourth joint of the maxillary palpi is more than 



