Coleopterological Notices, IV. 623 



punctures rather fine, lineate dorsally but larger denser and confused at the 

 sides ; antennse inserted near apical third, the scape long, first funicular joint 

 as long as the next three, the second small, obconical, slightly longer than 

 wide and about one-half longer than the third, outer joints transverse, club 

 moderate, densely pubescent, the basal joint constituting more than one-half 

 the mass and more sparsely pubescent near the base. Prothorax about as long as 

 wide ; sides parallel, evenly and broadly arcuate to apical sixth, then abruptly 

 rounded to the deep constriction ; the apex strongly tubulate, three-fourths as 

 wide as the base, the latter transversely truncate, the median lobe small and 

 feebly rounded ; disk with a narrow distinct and entire impunctate line, the 

 punctures rather fine but deep, uneven, not densely crowded, well separated 

 transversely but tending slightly to longitudinal elongation or partial coales- 

 cence. Scutellum very small, quadrate, glabrous. Elytra equal in width to 

 the prothorax and fully twice as long, the sides parallel, feebly convergent in 

 apical third, the apex rather abruptly and not narrowly rounded; humeral 

 callus almost obsolete ; disk with moderately deep strise, which become finer 

 toward apex and coarser near the base ; intervals nearly three times as wide as 

 the grooves, each with a single series of rather small, uneven, approximate 

 punctures, somewhat confused on the third. Legs short, the anterior and 

 middle femora very robust, the posterior far less so. Length 4.0-4.7 mm. ; 

 width 1.3-1.7 mm. 



California (San Francisco). Mr. Dunn. 



In this species the pygidium of the male is large, broad, vertical, 

 convex, moderately densely punctate, and completely exposed ; in 

 the female it is entirely covered by the elytra, with the exception of 

 a scarcely visible fine lower margin. The prosternum is flat and 

 the anterior coxae separated by three-fourths of their own width. 

 The male appears to be much less abundant than the female in both 

 of these species. Five specimens. 



LIMJVOBARIS. 



Bedel— Fne. Col. Bas. Seine, VI, p. 183. 



The mandibles in this genus are of a completely different type 

 from those of Centrinus, for, instead of being prominent, perfectly 

 non-decussate and totally devoid of internal inequality, they are 

 here short, stout, strongly arcuate, deeply notched at apex and 

 broadly decussate when closed, the anterior outline then being 

 broadly, feebly arcuate and not in the least prominent. With this 

 radical difference of structure, there is also a decided peculiarity of 

 facies, the species of Limnobaris being narrow, parallel or oval, 

 generally distinctly depressed, with feebly developed humeral callus 

 and more or less glabrous integuments. Of the genera with promi- 



