Coleopterological Notices. 425 



diameters ; intervals rather distinctly convex, about four times as wide as the 

 strial punctures, sparsely and very minutely punctate. Abdomen polished, 

 longitudinally rugulose toward base, sparsely, finely punctate, the pubescence 

 very short, sparse and inconspicuous. Legs moderate ; tarsi long. 



Male. — Anterior tarsi strongly, intermediate moderately dilated, nearly as 

 in alutaceas; abdomen very feebly impressed or flattened in the middle toward 

 base, the fifth segment almost completely unmodified. 



Length 6.7-7.0 mm. ; width 3.2-3.4 mm. 



Florida (Biscayne Bay). Mr. Schwarz. 



This species is also exceedingly distinct in all of its characters, 

 being readily distinguishable from alutaceus by its coarser punc- 

 tuation, visible although extremely short pubescence and strongly 

 punctured elytral striae. The female is a little more robust than 

 the male, with relatively shorter elytra. 



3 B. metallicus Fabr. — Syst. El. I, p. 143. — Oblong-oval, rather con- 

 vex, strongly shining with aeneous lustre ; pubescence very fine, moderate in 

 length, recumbent, cinereous, rather sparse, easily removable and not con- 

 spicuous. Head strongly transverse, rather finely but deeply punctate, the 

 punctures smaller anteriorly, distinctly separated ; upper lobe of eyes mode- 

 rate ; antennae rather slender, moderately clavate, the second joint a little 

 longer than wide and fully two-thirds as long as the third, the latter but very 

 slightly longer than the fourth. Prothorax about three-fourths wider than 

 long, rather strongly narrowed from base to apex ; sides more strongly arcuate 

 at apical third, nearly straight toward base and apex, the latter broadly emar- 

 ginate, the angles anteriorly prominent ; base transverse, the lateral sinua- 

 tions strong ; disk very finely and sparsely punctate toward the middle, much 

 more coarsely and densely so toward the sides where the punctures are gener- 

 ally separated by scarcely more than their own widths ; basal foveas distinct. 

 Scutellum well developed, very slightly wider than long, minutely punctate. 

 Elytra fully three times as long as the prothorax and, behind the middle, just 

 perceptibly wider, together rather obtusely rounded behind ; disk without 

 distinctly impressed stria? except toward the suture, where they become very 

 feebly impressed, the strial punctures moderate in size, widely interrupted in 

 sets of one to four or five, those composing the sets rather approximate and 

 separated by about their own diameters ; intervals four to five times as wide 

 as the strial punctures, flat, sparsely and very finely punctate. Abdomen 

 polished, feebly, longitudinally rugose, very finely, rather sparsely punctate ; 

 pubescence fine, sparse, moderate in length, not conspicuous. Legs short, the 

 tarsi long. 



Male. — Anterior tarsi strongly, the intermediate feebly dilated and densely, 

 finely spongiose beneath ; abdomen very narrowly, feebly flattened in the 

 middle toward base, the impression of the fifth segment small, round and 

 rather deep. 



Length 4.2-4.8 mm. ; width 1.8-2.1 mm. 



