352 Memoirs on the Coleoptera 



tubulate apex, which is much less than half as wide as the base; punctures 

 strong, everywhere very dense, the median line finely smooth in part; 

 basal lobe somewhat prominent, though evenly rounded, the scutellum 

 small, transverse; elytra a fourth longer than wide, slightly wider than 

 the prothorax and two-thirds longer, the outline oval, narrowly rounded 

 at apex, the humeral callus rather prominent; grooves deep; intervals 

 from one-half wider than the grooves to twice as wide as the latter, with 

 strong and very dense confused punctures throughout; setae minute and 

 inconspicuous; abdomen shining, with the deep but moderate punctures 

 not quite so dense. Length (9) 3.2 mm.; width 1.6 mm. California 

 (San Diego). 



Related to insidiosa, from western Texas, and resembling it in 

 color and sculpture, but more broadly oval and with much shorter 

 prothorax and shorter beak. 



Onychobaris liberta n. sp. — Narrower, feebly subrhomboid-oval, con- 

 vex, rather dull from density of sculpture, black throughout; beak slender, 

 arcuate, closely punctulate, a fifth (d^) to a third (9) longer than the 

 prothorax, which is a third wider than long, the sides feebly converging 

 and slightly arcuate, gradually rounding from a little before the middle 

 to the briefly tubuliform apex, the latter fully half as wide as the base; 

 punctures only moderately coarse, deep, very dense throughout, the 

 median line sometimes feebly tumescent basally but not definitely 

 smooth, the basal lobe relatively well developed and prominent, sub- 

 angularly rounded, the scutellum small, transverse; elytra a fourth 

 longer than wide, slightly wider than the prothorax and fully three- 

 fourths longer, suboval in form, but somewhat more broadly obtuse at 

 apex than in the preceding, the humeral callus rather prominent; grooves 

 not coarse, deep, the intervals two to two and one-half times as wide as 

 the grooves, strongly and moderately coarsely, densely and confusedly 

 punctate throughout; abdomen shining, the moderate punctures not 

 very dense, the male with small medio-basal impression. Length (cf 9 ) 

 2.2-2.65 rnm.; width 0.82-1.3 rnm. California (San Francisco to Los 

 Angeles'). Nine examples. 



I formerly regarded the examples of this species at hand as be- 

 longing to the Texan insidiosa, but on renewed examination I find 

 that they represent a distinct though somewhat closely allied species, 

 differing in the narrower form of body, smaller size and less coarse 

 sculpture. 



There are two forms at hand so closely allied to insidiosa that I 

 do not feel inclined to announce them as full species, especially as 

 the types are unique; they may be held, for the present at least, as 

 subspecies as follows: 



Onychobaris insidiosa ssp. veterator nov. — Color and sculpture nearly 

 as in insidiosa, the body more broadly oblong-oval in outline, the beak 



