538 Coleopterological Notices, IV. 



20 Onycliobaris pectorosa Lee. — Proc. Am. Phil. Soc, XV, p. 29.5. 



Broadly ovate, black and polished throughout, sparsely sculp- 

 tured, the setae very minute and only just observable. The beak is 

 strongly arcuate and thickened toward ba.se, but nearly straight in 

 apical half, equal in leng-th to the prothorax and sparsely punctured. 

 The prothorax is nearly one-half wider than long, the sides parallel 

 and straight in basal half, then broadly, evenly rounded and conver- 

 gent to the apex which is extremely feebly constricted at the sides; 

 base transver!>e, the lobe equal to one-third the total width, rounded 

 and prominent; disk rather finely, sparsely punctate, with a narrow 

 subentire median line, the punctures scarcely one-fourth as wide as 

 the scutellum, separated by nearly their own widths toward the 

 middle, very dense at the sides but somewhat uneven in distribution 

 throughout. The elytra are but .slightly longer than wide, one-half 

 longer and very little wider than the prothorax, the sides nearly 

 straight and unusually strongly convergent, the apex rather nar- 

 rowly rounded; disk with somewhat coarse, very deep grooves, the 

 intervals alternating slightly in width, from two to three times as 

 wide as the grooves, with rather small but deep, not very close-set 

 ])anctures, somewhat confused on the wider, but larger and in single 

 series on the narrower, intervals. The antennge and prosternum 

 are normal in structure. Length 3.8 mm.; width 1.95 mm. 



Represented by the unique type in the cabinet of LeConte, taken 

 by Belfrage in Texas, probably at Waco. It is not at all closely 

 allied to any other described species.' 



21 OliycllObaris dilUta n. sp. — Oval, moderately convex, black and 

 strongly shining throughout, the antennae piceo-rufous ; sculpture not very 

 dense. Head minutely, sparsely punctate toward apex, the transverse pol- 

 ished impression rather pronounced ; beak slender, strongly arcuate toward 

 base, very feebly so toward apex, distinctly longer than the prothorax and 

 sj^arsely punctate ; antennae moderate, basal joint of the funicle nearly as 

 long as the next four, second but slightly longer than the third, outer joints 

 rapidly shorter, becoming strongly transverse and coarctate, club normal but 

 rather large. Prothorax somewhat more than one-third wider than long, the 

 sides parallel in basal two-thirds, then broadly rounded and convergent to 

 the apex which is distinctly subtubulate ; base straight and feebly, posteriorly 

 oblique from the rather small but strongly rounded median lobe to the sides ; 

 disk with narrow median impunctate line in basal half, the punctures deep, 

 rounded, rather small, not quite one-third as wide as the scutellum, very 

 dense and contiguous toward the sides but })ecoming narrowly separated near 



1 Specimens possibly of this species are just received from St. Louis, Mo. 



