Coleopterological Notices, IV. 413 



Color black ; lustre more or less dull ; elytral setae more hair-like, less 

 broadly scattered over the intervals and less conspicuous. 

 Legs black or piceous-black. 



Smaller and narrower species, the integuments dull and opaque, the 



punctures smaller 17 oblongilla 



Larger species, robust and oblong, subparallel ; lustre very feebly alu- 

 taceous, the elytra quite polished ; interstitial punctures coarser and 



more transverse 18 transversa 



Legs bright red ; larger species, strongly convex, coarsely punctate, the 



pronotum usually distinctly alutaceous 19 dilatata 



16 — Elytra strongly narrowed behind the humeri ; small species, the integu- 

 ments polished and with a distinct piceous tinge 20 Clliieipeniiis 



Elytra subparallel or very feebly narrowed behind the humeri. 



Interstitial punctures broadly confused on the third, and sometimes also on 

 the second, interval, these being then wider than the others ; rather 



small species, dark piceous-brown throughout 21 aprica 



Interstitial punctures forming an approximately even single series on all of 

 the intervals. 

 Smaller species, piceous to piceous-black in color, the prothorax more 

 strongly rounded on the sides anteriorly ; legs somewhat finely punc- 

 tate 22 dolosa 



Larger and more elongate-oval, intense black, highly polished, the pro- 

 thorax shorter and more conical, the pronotum not so declivous ante- 

 riorly ; legs coarsely punctate 23 zuniana 



IT — Dull, finely and extremely densely punctate ; interstitial punctures 

 broadly confused at least on the alternate intervals ; elytral striae not 



very deep, distinctly punctate at the bottom 18 



Strongly shining ; sculpture variable 19 



18 — Body less stout, the beak rather slender and fully three-fourths as long 



as the prothorax in the female. California 24 opacula 



Body and beak moderately robust, the latter not more than two-thirds as long 

 as the prothorax in the female ; punctures slightly larger ; elytral lustre 



less densely opaque. Nebraska 25 porosicollis 



19 — Abdomen extremely densely and rugosely punctured throughout the 

 width ; pronotal punctures coarse and sparse, the interstitial punctures 



of the elytra moderate ; beak rather long 26 puiictiventris 



Abdomen not so densely or rugosely punctate, at least toward the middle. ..20 



20 — Interstitial punctures of the elytra larger, always exceeding in diameter 



one-third of the width of the narrower intervals, at least toward base. ..21 



Interstitial punctures small, never exceeding in diameter one-third the width 



of the narrower intervals ; aeneous metallic lustre predominant 24 



21 — Legs red or distinctly rufo-piceous throughout. California 22 



Legs black, or at most with a slight piceous tinge 23 



22 — Pronotal punctures somewhat coarse, deep and very dense, with a rather 

 conspicuous impunctate line ; interstitial punctures large, deep and ap- 

 proximate ; body black, the elytra more or less rufo-piceous in color ; beak 

 unusually long, nearly as long as the prothorax in the female. 



27 rubripes 



