398 BULLETIN 63, LTNITED STATES NATIONAL MUSEUM. 



Tarsal formula : 



Pro. Moso. Mola. Metatibia. 



Male.— 2§ 3^ 4 7 



Female.— 2A 3J 4 GJ 



ELEODES NIGRINA var. PERLONGA, new. 



Elongate, ver}- bright and shining, sculpturing as in nigrina^ but 

 somewhat finer. El^'tra obliquely narrowing in apical fourth, usu- 

 ally distinctly pointed behind with apex narrowly rounded and sub- 

 acute; disc somewhat flattened on the dorsum, arcuately and ob- 

 liquely declivous behind. 



Otherwise as in nigrina. 



Measurements. — Males: Length, l^St-l'l nun.; width. ().r)-T mm. 



Hahitat. — Wyoming ( June ) . 



Diagnostic characters. — The present race differs mainly from 

 nigrina in its very black and highly polished surface, as well as its 

 very elongate form. Males are only known to me and I have seen 

 eight examples all together. 



ELEODES DISSIMILIS, new species. 



'Elongate, fusiform-ovate, or oblong-ovate to ovate, very black, mod- 

 erately depressed, smooth, elytral strijc rather distant. 



Head twice as wade as long, frons more or less plane, lateral im- 

 pressions very feeble, frontal suture usually quite obsolete, distinctly 

 but not very coarsely punctate, punctures dense laterally and on the 

 epistonui. Antennce moderately long, somewhat stout, very feebly 

 compressed, scarcely or very gradually widened in outer four joints, 

 third joint about as long as the next two taken togethei", fourth 

 evidently just the least longer than the fifth, the latter to the seventh 

 inclusive subequal, eighth slightly shorter and subtriangulai-, ninth 

 and tenth scarcely transversely oval, eleventh short-ovate, truncate 

 at tip. 



Pi'oiiofiim subquadrate, widest at or just a little in front of the 

 middle, about a sixth to a fifth wider than long, slightly depressed; 

 disc moderately and evenly convex, more or less arcuately declivous 

 laterally, finely but distinctly, evenly and rather sparsely punctulate, 

 punctules frequentl}^ somewhat obsolete in the central area. Apex 

 slightly and evenly emarginate to subtruncate, more or less obsoletely 

 margined; sides moderately and quite evenly arcuate, apparently 

 more or less convergent behind the middle, where at times they may 

 be somewhat straight or rarely feebly subsinuate, marginal bead fine; 

 hase feebly rounded and finely margined, scarcely wider than the 

 apex; apical angles obtuse, feebly rounded or distinct, scarcely promi- 

 nent anteriorly; basal angles obtuse and not in the least prominent. 



