256 CALIFORNIA ACADEMY OF SCIENCES. [100] 



joints of the tarsi broadly dilated, the latter strongly bilobed; fourth slender; 

 claws veiy small, narrow, connate throughout their length except at the im- 

 mediate apex. 



It will be noticed that this genus corresponds quite 

 closely with Zygobaris, and I have drawn up the description 

 in such form that it can be readily compared with the one 

 given by Dr. LeConte for the latter (Proc. Am. Phil. Soc. 

 XV, p. 321). It differs conspicuously in its shorter beak, 

 in antennal structure and in its strongly grooved prester- 

 num; also in the claws, which are connate nearly through 

 their length. 



B. squamolineatus n. sp. — Form very narrowly elliptical, moderately 

 convey, black; legs and antennae dark fuscou«; coxaa black; integuments 

 shining. Head rather small, hemispherical, subalutaceous, finely and not very 

 densely punctate, with a few small robust scales along the inDer margins of 

 the eyes; beak scarcely twice as long as the head, slightly enlarged and flat- 

 tened toward tip, finely and rather densely punctate toward the base, much 

 more sparsely so near the apex. Prothorax about as long as wide, very 

 feebly constricted near the apex, sides very feebly convergent from base to 

 apex, abruptly and more strongly arcuate behind the constriction, base 

 broadly arcuate, more strongly so in the middle; apex transversely truncate, 

 three-fifths as wide as the base; disk transversely, nearly evenly and strongly 

 convex, coarsely, rather densely and evenly punctate; punctures round, 

 deep, perforate, separated by about their own width, distinctly finer along 

 the apex; surface abruptly and densely squamose at the sides, with a narrow, 

 sparsely squamose line along the middle; elsewhere each puncture bears a 

 very minute, slender scale; scales all arranged transversely. Elytra at the 

 humeri slightly wider than the prothorax; sides gradually convergent, broadly 

 and nearly evenly arcuate to the apex, which, conjointly, is rather nairowly 

 rounded; humeri longitudinally and rather strongly swollen; disk transversely 

 and rather strongly convex, fully twice as long as the pronotum, extremely 

 feebly constricted at one-fifth the length froni the apex, deeply and narrowly 

 grooved; strife finely, deeply and rather distantly punctate; intervals fiuely, 

 feebly and more closely punctate, alternating broader and narrower; the 

 narrow intervals having a single, the broad ones two rows, of large elongate 

 scales arranged longitudinally; humeral row broader; the scales along the 

 suture and also those near the the sides very much smaller and narrower. 

 Scutellum slightly longer than wide, oval. Legs fiuely and rather sparst ly 

 squamose; tarsi densely covered above with fine hair-like scales, densely 

 spongiose beneath. Abdomen densely squamose at the sides, sparsely so in 

 the middle; devoid of scales along the bases of the last three segments 

 Length 3.8 mm. 



