COLEOPTERA. 63 



the anterior margin of the labrum ; the latter nearly four times as wide as 

 long, angles not at all rounded ; epistoma about twiee as wide as long, suture 

 narrow but distinct ; eyes margined interiorly by a narrow groove ; anterior 

 seta very large, much larger than the posterior, opposite the anterior two- 

 fifths of the eye, the latter opposite the posterior fourth ; antennae distinctly 

 longer than the head and prothorax together, slender, second joint three- 

 fourths as long as the third, as long as the fifth, very slightly shorter than 

 the fourth ; mentum tooth very robust, triangular, wider than long, very 

 prominent ; dental setae very fine ; gular support of mentum bearing along 

 its basal margin a pair of setae on each side, the outer ones very long and 

 stout, the inner very fine and short, the pairs widely separated. Prothorax 

 widest slightly in advance of the middle, where it is very slightly wider than 

 the head, and one-fourth wider than long ; sides strongly arcuate anteriorly, 

 strongly convergent toward the base and extremely feebly sinuate .just before 

 the basal angles ; the latter obtuse and scarcely rounded ; apex broadly and 

 very feebly emarginate throughout ; apical angles rather narrowly rounded, 

 slightly obtuse, base broadly and very feebly arcuate, four-fifths as long as 

 the apex ; anterior lateral seta at two-fifths the length from the apical 

 angles; disk rather feebly convex; median line very fine, distinct, disap- 

 pearing near the base ; sides narrowly but strongly reflexed ; longitudinal 

 carina at the basal angles short ; longitudinal canalicular impressions near 

 them very strongly marked, short. Elytra widest at the middle, where they 

 are one-half wider than the pionotum ; sides parallel for four-fifths the length 

 from the broadly rounded humeral angles, and feebly arcuate ; disk rather 

 obtusely rounded behind, somewhat depressed, two-thirds longer than wide, 

 one-half longer than the head and prothorax together, strongly punctato- 

 striate, intervals flat ; striae becoming obsolete near the apex, except the 

 seventh and eighth, the latter continuous at apex with the first: punctures 

 round, moderate in size, deeply impressed, much closer in the two sutural 

 striae ; scntellar stria short, containing abont ten or eleven punctures ; each 

 elytron with a discal puncture at the anterior and posterior third, between 

 the second and third striae, slightly nearer the latter, and a long lateral seta 

 at one-sixth the length from the base. Legs long and slender ; posterior 

 femora with three or four discal setae, and two much longer ones along the 

 lower edge ; corresponding tibia having about five terminal spines, the 

 longest less than one-half as long as the first joint of the tarsus', the latter 

 as long as the next three together, and one-third longer than the last : 

 posterior coxae bearing two erect setae in the middle of the disk arranged 

 longitudinally. Length 4.8 mm. 



Cape May, New Jersey, 1. 



The alutaceous appearance produced by tlie minute but very dis- 

 tinct and even granulation of the head and pronotum is very strongly 

 marked, and forms a beautiful object with suitable optical power. 



B. acticola n. sp. — Depressed ; color black with piceo-aeneous lustre ; 

 elytra without trace of paler tint anteriorly except between the se\-^^nth and 

 eighth striae, externally and apically very narrowly paler in tint, with a 



