Coleopterological Notices, IV. 539 



the middle. Scutellum moderate. Elytra slightly longer than wide, two-thirds 

 longer than the prothorax, and, at the very feebly evident humeral tuberosi- 

 ties, barely perceptibly wider than the latter ; outline behind the humeri 

 hemi-elliptical ; disk with rather coarse, very deep, abruptly denned grooves, 

 the intervals flat and subequal, about twice as wide as the grooves, and each 

 with a single series of small, rounded, not very close-set punctures which are 

 about one-half as wide as the intervals ; setae very minute and scarcely observ- 

 able. Abdomen densely punctured, especially toward the sides. Length 2.6 

 mm.; width 1.2 mm. 



Texas. 



This small species is not closely allied to any other which I have 

 been able to study. The type is apparently a female and is unique. 



22 Onycliobaris porcata n. sp. — Oblong-suboval, rather convex, 

 black throughout ; integuments polished but deeply and closely sculptured ; 

 setse very short and inconspicuous. Head finely, rather sparsely punctured 

 throughout, separated from the beak by a transverse impunctate line, the 

 impression almost obsolete; beak densely, strongly punctured, evenly, rather 

 strongly arcuate, but very slightly longer than the prothorax, gradually but 

 feebly tapering from base to apex ; antennae rather short, the second funicular 

 joint but slightly longer than the third, the outer joints rapidly wider, the 

 seventh as broad as the base of the club, the latter short, oval, not at all 

 abrupt, densely pubescent, with the basal joint but slightly less than one-half 

 the mass, and with a transverse polished fovea at base on the anterior side. 

 Prothorax rather short, nearly one-half wider than long, the sides subparallel 

 and feebly arcuate in basal three-fourths, then strongly rounded, thence 

 strongly convergent and feebly sinuate to the apex ; base transverse, the lobe 

 one- third the total width, strong, rounded ; disk extremely deeply, rather 

 coarsely punctate, the punctures not quite in actual contact but very dense, 

 about one-half as wide as the scutellum, rather uneven in distribution ; 

 median impunctate line narrow but distinct, not attaining the apex. Scutel- 

 lum rather small, transverse. Elytra scarcely one-fifth longer than wide, 

 about three-fourths longer than the prothorax, and, at the rather prominent 

 numen, very distinctly wider than the latter; sides distinctly convergent, the 

 apex broadly parabolic ; disk with abrupt, coarse but not deep grooves, roughly 

 sculptured at the bottom, the intervals flat, alternately slightly wider than, 

 and equal to, the grooves, the punctures coarse, deep, approximate or semi- 

 confluent, forming single series taking up nearly the entire width of the narrow 

 intervals, more confused on the broader ones. Abdomen rather sparsely punc- 

 tured toward the middle, polished throughout. Anterior coxa? widely sepa- 

 rated. Legs deeply punctured ; last tarsal joint finely and rather densely 

 pubescent throughout. Length 4.1 mm. ; width 2.0 mm. 



Arizona. 



A single specimen which is apparently a female. This very dis- 

 tinct species is quite aberrant in antennal structure. 

 Annals N. Y. Acad. Sci., VI, Oct. 1892.— 36 



