Baring 347 



more diversified vestiture and more deeply constricted apex of the 

 prothorax. 



*Stictobaris ornatella n. sp. — Form narrower and more convex than in 

 the preceding, rather shining, black, the elytra and legs brownish-rufous; 

 vestiture whitish, shorter than in the preceding, visible on the prothorax 

 as some long subdecumbent scales toward the sides except apically, and, 

 on the elytra, condensed loosely at the base of the third interval and on 

 the separate intervals in a transverse area in inner half and near three- 

 fifths from base, and also feebly near the apex; beak in the female thick, 

 arcuate, closely punctate and about as long as the prothorax, without 

 brisding scales at base; prothorax as usual, with the upper profile evenly 

 and feebly arcuate, almost as long as wide, the sides subparallel, very 

 feebly arcuate, rapidly rounded at apex to the apical tubulation, which 

 is marked by longitudinal plicae, the dorsal constriction much less marked 

 than in the preceding; punctures much less coarse, deep, dense, the 

 median line almost similar; elytra nearly as in the preceding in outline, 

 though narrower and with more prominent humeri and barely three- 

 fourths longer than the prothorax; grooves more unequal, coarser and 

 strongly punctured basally, but gradually becoming rather fine behind; 

 intervals not wider than the grooves basally, wider behind, each with a 

 single series of relatively coarse and separated punctures, smaller and 

 more confused on the slightly wider second and third intervals; abdomen 

 very convex, finely, sparsely punctate, more distinctly and less sparsely 

 toward the sides. Length (9) 3-2 mm.; width 1.2 mm. Mexico 

 (Tepehuanes, Durango), — Wickham. 



This species differs from tubifera in the much longer, less coarsely 

 but more densely punctured prothorax, posteriorly gradually finer 

 but basally much coarser elytral grooves, less deep thoracic con- 

 striction and less bristling vestiture. 



Onychobaris Lee. 

 The species of this genus are very numerous in the arid western 

 country, and many of them are nearly opaque because of density 

 of sculpture. The millepora type is of larger size of body than the 

 average, with finer and everywhere dense punctuation and small 

 short whitish scale-like hairs, imparting a grayish pruinose appear- 

 ance; the three following are allied to millepora: 



Onychobaris pollens n. sp. — Stout, rather convex, deep grayish-black 

 throughout, parallel, the sides oblique behind the humeral callus; beak 

 in the male- not very slender, arcuate, densely punctate and four-fifths 

 as long as the prothorax, the latter large, fully a fourth wider than long, 

 with the upper arcuate profile more sloping at apex, the sides parallel, 

 scarcely arcuate, broadly rounding and then greatly converging in about 

 apical third; apex less than half as wide as the base; punctures rather 



