EEVISION OP ELEODIINT BLATSDELL. 53 



LeConte separated the species described by him as immunis from 

 soror as follows : '' Of the same form as soror, but the thorax is more 

 narrowed behind, almost as in E. quadricollis ; the punctures of the 

 rows of the elytra are sometimes placed in distinct grooves, while in 

 other specimens the surface is even/' (See carhonarki.) 



Mr. Blanchard has pronounced my specimens undoubtedly the 

 same as LeConte's type from Eagle Pass, Texas. He also writes that 

 the type and a male from " Texas " have the elytra and under side 

 shining, and two other females from " Texas " are dull. 



The mental, sternal, abdominal, and crural characters are as in 

 carhonciTiiu except that the meso- and metafemora appear to be 

 slightly more slender. The protarsi appear to be subequal in length 

 in the sexes, and the mesotarsi appear relatively slightly shorter. 



ELEODES AMPLA, new species. 



Subfusiform to fusiform-ovate, subopaque, and smooth. 



Head twice as wide as long, more or less moderately convex between 

 the eyes, rather broadly flattened anteriorly, usually feebly impressed 

 laterally, sometimes across base of the epistoma ; frontal suture dis- 

 tinct and frequently bisinuate; evenly and sparsely punctate, punc- 

 tures coarser on the epistoma and finer on the vertex. Antennae 

 reaching a little beyond the base of the prothorax, very feebly com- 

 pressed in outer four joints, scarcely dilated, third joint scarcely as 

 long as the next two combined; the fourth, fifth, sixth, and seventh 

 subequal in length; eighth triangular and as long as wide; ninth 

 suborbicular ; tenth slightly transversely oval; eleventh oval to ovate, 

 and generally distinctly obliquely truncate at tip. 



Pronotiim widest at or a little in advance of the middle, about one- 

 fourth wider than long; moderately and evenly convex from side to 

 side, feebly so antero-posteriorly, more or less arcuately declivous 

 laterally along the sides; finely and sparsely or almost ol)soletely 

 punctulate; apex slightly and evenly emarginate, more or less obso- 

 letely beaded ; sides almost evenly arcuate from base to apex when 

 viewed vertically from above, more strongly so in the anterior three- 

 fourths, aiul obsoletely sinuate at basal fourth when viewed obliquely 

 from the side, finely beaded; hase quite broadly rounded and nu)re or 

 less feebly sinuate at middle, finely beaded, and about a fourth to a 

 third wider than the apex; apical angles subacute; basal angles 

 obtuse. 



ProfleuTw rather smooth, finely and sparsely punctulate, usualh^ 

 distinctly rugulose. 



Elytra oval, less than one-half to about a third longer than wide; 

 base more or less emarginate, frequently sinuate laterally, scarcely to 

 a little wider than the contiguous prothoracic base; Immei'i subacute, 

 scarcely prominent anteriorly ; sides evenly arcuate, apex obtuse and 



