EEVISION OF ELEODIINI BLAISDELL. 409 



The dull luster and sculpturing is nearly as in mgriiia, although 

 in the latter it is rather more coarse. In nigrina the pronotal disc 

 is usually rather feebly defined from the sides by the comparatively 

 feeble margins, which are often a mere line. 



In disslm'dis the integuments are more shining and smooth, the 

 pronotum rather quadrate and altogether it is a much more depressed 

 species, the vertical diameter of schwarzn being about a third greater. 



Neoadensis is a slender species, but the females tend toward 

 schwaj'zU in their broader form, and the surface luster is opaque and 

 alutaceous. 



General ohservations. — The mentum is comparatively large and 

 subtriangular rather than parabolic; surface is rather coarsely and 

 distinctly punctate, somewhat feebly and broadly foveate laterally, 

 setose, but inconspicuously so. 



The prosternum is not prominent ventrally with the coxa^. , In the 

 single male before me it is arcuately rounded antero-posteriorly and 

 not in the least nuicronate; in one female, rounded betAveen the coxie 

 and distinctly mucronate behind, and in another example very 

 slightly mucronate. 



The mesosternum is feebly arcuate, but obliquely declivous and 

 very slightly and broadly concave. 



The metasternum laterally between the coxa^ is as long as the 

 width of a mesotibia at the middle. 



The abdominal process is subquadrate and about a fifth (male) to 

 a fourth (female) of its width broader than the metasternal salient. 



The process is equal in length to the post-coxa 1 part of the first 

 segment, also to the third; the second is about two-thirds longer than 

 the fourth. These proportions appear quite similar in the two sexes. 



The femora are quite like those of nigrina^ the grooves on the nieso- 

 and metafemora are more evanescent and the margins weaker. 



The tibiae are quite like those of nigrina; the protibiai in the male 

 are quite strongly constricted at base : this is also observed in per- 

 longa. 



The tarsi are quite stout and somewhat long. 



Tarsal formula : 



Pro. Meso. Meta. Metatibia. 



Male.— 2:^ Sj .Sjj ^J 



Female.— 2A 3 4 C. 



Subgenus STENELEODES, new. 



As in other subgenera of the genus Eleodes^ the present one is 

 founded upon the female genital characters, which are very dis- 

 tinctive. 



Otherwise the subgenus would be difficult to characterize on account 

 of the paucity of intrinsic superficial characters, although the specific 

 constituents possess a more or less distinctive habitus. 



