Coleopterological Notices, IV. 559 



California (Lake Co.). The interstitial punctures sometimes become 

 very coarse, deep and approximate, but I can perceive no such 

 departures of structure as might call for a division into distinctly 

 defined subspecies. 



9 Pseudobaris caelata u. sp. — Rather broadly oval, moderately con- 

 vex, polished, intense hlack throughout. Head finely, distinctly punctate 

 toward apex, the beak coarsely, deeply, subrugosely so at the sides, evenly 

 but not very strongly arcuate, robust, gradually flattened through apical half, 

 short, in the female barely equal in length to the prothorax, and in the male 

 distinctly shorter ; antennae moderate, the second funicular joint about one- 

 half longer than the third. Prothorax rather short, nearly one-half wider 

 than long, the sides subparallel and nearly straight in basal three-fourths, 

 then strongly rounded and convergent to the apex, which is broad, truncate 

 and very briefly subtubulate ; base broadly, deeply bisinuate ; disk without 

 trace of median line, coarsely, rather densely, very deeply punctate, the punc- 

 tures regular, abrupt and perforate, circular, three-fourths as wide as the 

 scutellum and separated by much less than one-half of their own diameters. 

 Scutellum small, transversely oval, rough, not distinctly impressed. Elytra 

 about one-fourth longer than wide, nearly twice as long as the prothorax, and, 

 at the distinctly tumid humeri, a little wider than the latter ; sides distinctly 

 convergent behind the humeri, the outline hemi-elliptical ; disk not very 

 coarsely but deeply grooved, the intervals flat, equal, about twice as wide as 

 the striae, each with a single series of moderately distant, coarse, transversely 

 rugose but not very deep punctures ; setae very minute and not distinct, but 

 mingled with long white widely dispersed squamules, distinctly condensed at 

 the base of the third interval. Abdomen rather sparsely punctate, the setae of 

 the under surface sparse but distinct, white. Prosternum broadly, abruptly 

 but moderately deeply sulcate, the coxae small and separated by much more 

 than their own width. Length 2.6-2.8 mm. ; width 1.2-1.3 mm. 



New Mexico (Albuquerque). Mr. Wickham. 



A very distinct species, not at all closely allied to any other but 

 assignable to the nigrina group, which is distinguished by the 

 widely dispersed white squamules of the elytra. The male has the 

 abdomen narrowly and distinctly impressed toward base. Four 

 specimens. 



HESPEROBARIS n. gen. 



A single small species thus far alone represents this genus, which 

 is allied rather closely to Pseudobaris. It agrees with Pseudobaris 

 in general habitus, but differs in several important structural modi- 

 fications of the under surface, relating especially to the form of the 

 prosternal impression and intercoxal process, also in the structure 

 of the antennae. The antennae are of the same general type as the 



