524 Coleopterological Notices, IV. 



11 — Intervals remotely punctured 12 



Intervals more approximately punctured 13 



12 — Intervals but slightly wider than the grooves, the punctures coarse and 

 more noticeably remote on the alternate intervals ; pronotal punctures 

 coarse and separated by rather less than their own widths, the surface 



feebly alutaceous 16 reniota 



Intervals rather more than twice as wide as the striae, the punctures small 

 and remote on all ; pronotum dull and strongly granulato-reticulate, the 

 impunctate area wide, the punctures smaller and separated by much 



more than their own diameters 17 distans 



13 — Larger species, the elytral humeri very distinctly tumid and prominent. 

 Form moderately broad, the elytra distinctly longer than wide; legs rufous. 

 Punctures of the elytral intervals large, rounded, very deep and close-set, 

 forming single series; prothorax sometimes slightly inflated. 



18 molesta 



Punctures of the elytral intervals smaller, more distant, uneven in size 



and shape, forming single series on some and finer and broadly, sparsely 



confused on others 19 illex 



Form very broad, the elytra not longer than wide and strongly narrowed 

 from base to apex ; legs black, with a feeble piceous tinge. 



20 pectorosa 

 Rather small species, less than 3 mm. in length, the elytral humeri feebly 



and obsoletely tumid, not at all prominent 21 diluta 



14 — Elytral grooves extremely coarse, the interstitial punctures very coarse 

 and semi-coalescent ; form broad; antennae aberrant 22 porcata 



1 OnycliO"baris densa Lee. — Proc. Acad. Nat. Sci. Phila., 1859, p. 

 79 ; ibid., 1868, p. 362 (Baridius) ; Proc. Am. Phil. Soc, XV, p. 295. 



The form in this species is oblong-oval and convex, the integu- 

 ments densely and deeply sculptured and but feebly shining, and 

 the setae silvery and somewhat conspicuous. The beak is rather 

 slender, strongly arcuate toward base but becoming straight in 

 apical half, and is slightly longer than the prothorax ; the second 

 joint of the antennal funicle is one-half longer than the third. The 

 prothorax is scarcely two-fifths wider than long, the sides feebly 

 convergent and nearly straight to apical fourth, then strongly 

 rounded, the apex briefly tubulate ; punctures somewhat coarse 

 and very deep, one-half as wide as the scutellum, very densely and 

 polygonally crowded. The elytra are but slightly longer than wide 

 and about two-thirds longer than the prothorax, the striae rather 

 coarse and deep, the intervals flat, alternately wide and narrow, 

 somewhat coarsely, deeply, extremely densely and confusedly punc- 

 tate and rugulose but strongly shining. The abdomen is coarsely, 



