Coleopterological Notices, IV. 531 



grooves ; the intervals flat, suLeqnal, not quite one-half wider than the 

 grooves, each with a single series of large deep rounded and close-set punc- 

 tures which occupies nearly its entire width ; setse rather long, conspicuous. 

 Abdomen polished, rather coarsely strongly and moderately closely punctured. 

 Legs moderate; basal joint of the tarsi as long as the next two, the third 

 small, but slightly wider than the second, the fourth much shorter than the 

 three preceding together ; claws small. Prosternum very widely separating the 

 coxse. Length 3.3 mm.; width 1.6 mm. 



Arizona (Benson). Mr. G. W. Dunn. 



Somewhat similar to svblonsa in general outline, but in scarcely 

 any other character. The seta^ of the elytra in subtonsa are very 

 small, subrecumbent and not conspicuous, while in utictica they are 

 unusually long, erect and form even bristling single series on each 

 interval ; the indistinct punctures of the grooves also bear smaller 

 setae which are, however, visible under moderate power. The 

 punctures of the pronotum are a little less dense along the middle. 



11 Oliycliobaris mystica n. sp.— Oblong-oval, convex, extremely 

 densely sculptured, opaque, piceous-black, the head, beak and legs rufous, 

 the setae short but erect, rather stout, distinct and somewhat dense. Head 

 strongly, densely punctate toward apex, the transverse groove distinctly im- 

 pressed and very highly jjolished, abruptly impunctate, the beak moderately 

 densely punctate, very densely so at the sides, the median impunctate line 

 distinct and entire, strongly, evenly arcuate, equal in length to the prothorax 

 in the male, quite distinctly longer in the female ; antennje moderate, the 

 second funicular joint rather long, scarcely twice as long as wide but subequal 

 to the next two. Prothorax rather long, scarcely one-fourth wider than long, 

 the sides snbparallel in basal three-fourths, then strongly rounded and con- 

 vergent to the apex which is broad, truncate and distinctly constricted at the 

 sides ; base subtransverse, the median lobe large, rather more than one-third 

 the total width, prominent, broadly rounded ; disk without trace of median 

 line', the punctures moderately coarse, nearly two-fifths as wide as the scutel- 

 lum, deep, excessively dense and polygonally crowded throughout. Scutellum 

 rather small. Elytra a little longer than wide, barely one-half longer than the 

 prothorax, and, at the small but distinctly prominent humeri, quite noticeably 

 wider than the latter ; outline behind the humeri broadly hemi-elliptical ; 

 disk with abrupt deep coarse and confusedly punctured grooves, the intervals 

 flat, narrow, subequal, exactly equal in width to the grooves and each with a 

 single series of large, very deep, circular, perforate and very close-set punc- 

 tures, which are almost as wide as the intervals. Abdomen rather coarsely, 

 densely punctured. Length 3.3^.1 mm. ; width 1.4-1.9 mm. 



Arizona (Benson and Pinal IMts.) — Dunn and Wickham ; Texas 

 (El Paso), Mr. Dunn. 



Very easily separated from cither pauperella or ambigua, which 



