Brazilian Barin/e 135 



prominent and rounded; striae extremely fine and almost obsolete, but with 

 the small distant punctures distinct, the second and third deep and dilated 

 at base; under surface loosely pallido-squamulose along the middle; abdomen 

 broadly impressed and closely linearly squamulose basally. Length 7.0 mm.; 

 width 4.4 mm. Brazil. A single example, received from Desbrochers des 

 Loges under the name "smaragdinus." chalybeus n. sp. 



Prothorax, viewed in profile, very evenly but feebly or more moderately convex. 



2 



2 — Body rather elongate, rhombic-oval, bright metallic-green in color, with some 

 bluish shades above; beak ( 9 ) moderately thin and arcuate, rather smooth, 

 a little thicker and with stronger, sparse and irregular punctures basally, 

 three-fourths as long as the elytra; antennae at three-sevenths, piceous, the 

 first funicular joint as long as the next two, the second fully twice as long as 

 wide, the club very slender, with evident sutures, longer than the preceding 

 five joints; prothorax less than a third wider than long, the arcuate sides 

 gradually subparallel through about basal half, the tubulation with distinct 

 punctures and more than three-sevenths as wide as the base; surface finely, 

 sparsely punctate; basal lobe short, broadly sinuate at apex, the lateral 

 impressions feeble; scutellum slightly transverse, quadrate and smooth, 

 well developed; elytra triangular, with broadly arcuate sides and strongly 

 rounded apex, nearly a fourth longer than wide, four-fifths longer than the 

 prothorax and much wider, the humeri rather narrowly rounded; striae fine, 

 feeble, with fine punctures, the second and third dilated at base; intervals 

 with a few minute, sparse punctules; sterna closely punctate and with 

 brownish squamules; first abdominal segment ( 9 ) rather closely punctured, 

 broadly impressed along the middle. Length 6.0 mm.; width 3.7 mm. 

 Brazil (Rio de Janeiro). November. One specimen lautus n. sp. 



Body nearly similar, but not quite so narrow, blue in color, the anterior parts 

 more greenish; beak slender and nearly straight, arcuate and much thicker 

 basally, almost as long as the elytra, finely, sparsely punctate throughout; 

 antennae rather slender, black, near basal third, the first funicular joint as 

 long as the next four, the club cylindric, solid, over four times as long as 

 wide, not quite as long as the entire funicle; prothorax shorter, fully two- 

 fifths wider than long, the subparallel sides broadly arcuate, rapidly rounding 

 and converging anteriad, the entire surface and tubulation with the usual 

 remote microscopic punctulation; basal lobe broadly obtuse and subtruncate; 

 scutellum flat, smooth, one-half wider than long, not quadrate but with the 

 hind margin cuspidly prominent at the middle; elytra a fifth longer than 

 wide, much wider than the prothorax, with prominent and strongly rounded 

 humeri, the oblique sides feebly arcuate, the apex rather obtusely rounded; 

 striae fine, distinctly punctate, the second and third not dilated at base; 

 presternum with a large area of dense whitish squamules at each side of the 

 sulcus; metasternum minutely, remotely punctulate in great part; abdomen, 

 in the type, with the first segment very finely and loosely punctate, broadly, 

 somewhat deeply impressed medially; femora minutely, sparsely punctulate, 

 the spicules strong, acutely dentiform on the anterior. Length 5.8 mm.; 

 width 3.4 mm. Brazil (Chapada — forest). October. A single specimen — 

 apparently female metallicus n. sp. 



Mirabilis may be allied to Cylindrocerus aznreiis Boh., but in 

 that species the scutellum is said to be rounded, which is radically- 

 different from its squarely rectangular shape in mirabilis. I suppose 

 the name "Diorymerus smaragdinus," under which the above 

 chalybeus was sent to me, is a manuscript name of Desbrochers 



