332 Memoirs on the Coleoptera 



thick, arcuate, finely, not densely punctulate, barely visibly shorter than 

 the prothorax in the apparently male type; prothorax three-sevenths 

 wider than long, the sides subparallel and feebly arcuate, rapidly rounded 

 and then oblique in nearly apical third; punctures deep, rather coarse, 

 less so medially, separated by about their own diameters, coarser, dense 

 and somewhat longitudinally confluent at the sides, the smooth median 

 line obliterated; basal lobe short but rather abrupt, rounded, the scutel- 

 lum small, subquadrate, impressed at apex; elytra three-sevenths longer 

 than wide, evidently wider than the prothorax and twice as long, the 

 sides notably converging, the apex somewhat narrowly and obtusely 

 rounded, the humeri prominent; grooves deep, rather coarse, less so 

 suturad, smooth, not evidently punctate; intervals scarcely twice as 

 wide as the grooves, each with a single series of small and well separated 

 punctures, the second and third much wider than the others but with 

 single series; setae very small, almost indistinct; abdomen very finely, 

 sparsely punctate throughout; metasternum very coarsely punctate. 

 Length 2.9 mm.; width 1.2 mm. Florida. One example. 



Evidently belongs to the ceneomicans group, and, as in that 

 species, having fine sparse abdominal and coarse metasternal punc- 

 tures, the latter similar also to the otherwise not closely allied 

 metasternalis, but in suhtropica the prothorax is very different in 

 outline, the body narrower and the elytra more cuneiform. 



Baris rostrina n. sp. — Elongate-oval, very convex, shining, black, not 

 metallic, the legs feebly picescent; beak in the male rather thick, very 

 moderately arcuate, closely punctulate, impressed above near basal third, 

 so that the basal part is more convex in profile, about two-thirds as long 

 as the prothorax, the latter between a fourth and fifth wider than long, 

 the sides almost evenly arcuate from base to apex, becoming gradually 

 parallel but arcuate basally; basal lobe very short and rounded; punc- 

 tures strong and deep, separated by about their own diameters, coarser 

 and densely rugulose laterally, the smooth median line narrow from base 

 to anterior third; scutellum small, rounded; elytra two-fifths longer than 

 wide, slightly wider than the prothorax and a little less than twice as 

 long, the sides feebly converging and broadly, distinctly arcuate to the 

 rather narrowly obtuse apex, the humeral callus inconspicuous; grooves 

 moderately coarse, deep, smooth; intervals one-half wider than the 

 grooves, with single lines of very moderate and rather well separated 

 punctures, the third wider and with the punctures confused; setse very 

 small, inconspicuous; abdomen with somewhat strong, deep and dense 

 punctures throughout, broadly and very feebly impressed at base in 

 the male. Length (cf ) 2.8 mm.; width 1.2 mm. Missouri (St. Louis), — 

 Schuster. One specimen. 



It is impossible to estimate the constancy of the peculiar modi- 

 fication of the beak in the single type, but the species is very distinct 

 otherwise in its narrowly elongate-oval and very convex form and 



