406 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. 



The hairs of the ventral surface are easily lost, and specimens 

 must be young or unworn. 



The hairs on the ventral surface of dissimilis are short and dark. 

 A male from Pioche, Nevada, represents a form with large pro- 

 thorax, and the elytra are more oblong, with sides parallel at middle 

 third. 



General observations. — The mentum is as in dissimilis, but smaller. 



The prosternum in all of the examples at hand is not at all promi- 

 nent ventrally with the coxae, feebly convex antero-posteriorly be- 

 tween the coxa? and distinctly mucronate behind, the mucro varying 

 in size, but small and rounded. 



The mesosternum is small, quite vertically arcuate, and deeply 

 excavated, so that the sides appear like lobes. 



The metasternum laterally between the coxae is as long as the width 

 of a mesotibia at apical fourth. 



The abdominal process is subquadrate and about a third of its 

 width broader than the metasternal salient. 



The post-coxal part of the first segment is equal in length to the 

 second, the latter twice as long as the fourth (male). 



The third segment is about two-thirds (male) as long, or twice as 

 long (female) as the fourth. 



The tarsi are long and slender. 



Tarsal formula: 



Pro. Meso. Meta. Metatibia. 



Ma le.— 2 2g 3 5^ 



Female.— 2i 3 3J .5J 



It is worthy of note that the female has unusually long tarsi as 



compared with the male ; the types are quite similar in size. 



ELEODES SCHWARZII, new species. 



Suboblong-oval to subobloug-ovate, subopaque. rather robust. 

 Thorax ahnost coarsely and densely punctate. Elytra submuricate 

 laterally and on apex. 



Head twice as wide as long, feebly convex, moderately impressed 

 laterally and somewhat along the frontal suture, the latter very 

 slightly and vaguely indicated, densely and subscabrously punctate, 

 punctures moderate. Anten7uc moderate in length and stoutness, 

 outer four joints feebly compressed and slightly dilated, third joint 

 about as long as the next two taken together, fourth very slightly 

 longer than the fiftli. the latter to the eighth, inclusive, subequal, 

 the latter subtriangular, ninth about as long as wide, tenth slightly 

 transversely oval, eleventh short-ovate. 



Pronofum somewhat transversely suboblong-oval, about a third 

 wider than long, widest at about the middle; disc moderately and 

 evenly convex, densely punctate, punctures almost coarse, granulate 



