412 Memoirs on the Coleoptera 



anterior coxae are more widely separated than in A mpeloglypter and 

 the posterior lobe of the prosternum extends behind the mesocoxal 

 tangent; the anterior part of the prosternum feebly slopes upward 

 from the coxae and is broadly, feebly impressed along the middle, 

 the apical part of the impression sometimes deep and foveiform. 

 The legs are slender, longitudinally sculptured, the femora mutic 

 and the tibiae unusually short. The prothorax is not sharply 

 tubulate, and the basal lobe is notably different from that of the two 

 preceding genera, being more as in Madarus, large, prominent and 

 evenly rounded, the scutellum small, closely fitted and equilatero- 

 triangular, the elytra moderately grooved and the pygidium small, 

 rounded and transverse. The two species in my collection are the 

 following: 



Form stout, oblong-oval, convex, polished and black throughout; beak in the 

 type slightly thick, evenly and somewhat strongly arcuate, cylindric, feebly 

 tapering distally, finely, not very closely sculptured and evidently less than 

 half as long as the body; antennae medial, with rather stout, oblong-oval 

 club; prothorax not quite one-half wider than long, the sides converging 

 and barely arcuate, rounding and oblique beyond the middle to the short 

 but distinct conical tubulation, which is much less than half as wide as the 

 base; punctures very minute and remote, rather abruptly coarse and un- 

 evenly dense at the extreme sides; elytra very little longer than wide, with 

 only feebly oblique and slightly arcuate sides and rapidly broadly obtuse 

 apex, at the moderately tumid humeri only very slightly wider than the 

 prothorax, three-fourths longer; grooves sharply defined, rather strong, 

 deep and only finely, feebly punctate, a third to fourth as wide as the inter- 

 vals, which have single uneven series of very minute punctules; abdomen 

 evenly convex, loosely and moderately punctate, the first two segments 

 longer than all the rest, the first suture obsolete; sternal punctures rather 

 coarse; prosternal impression ending at apex in a deep oval fovea. Length 

 2.65 mm.; width 1.35 mm. Brazil (Chapada). May. One specimen, 

 found on flowers fastidiosus n. sp. 



Form more oval, narrower, polished, black and still less punctate; beak in the 

 type thinner, evenly cylindric, evenly and moderately arcuate, less so than 

 in the preceding, finely and sparsely punctulate and very nearly half as long 

 as the body, the groove at the sides beyond the antennas deeper and con- 

 spicuous; antennae blackish, submedial; prothorax one-half wider than long, 

 the sides more converging, feebly arcuate, gradually more rounded anteriorly, 

 oblique to the apex, which is not tubulate and less than half as wide as the 

 base; punctures extremely minute and remote, becoming somewhat coarse 

 and closer at the extreme sides, but much less coarse, close and conspicuous 

 than in the preceding; basal lobe and scutellum similar; elytra a fifth longer 

 than wide, the moderately oblique sides nearly straight, the apex rapidly 

 obtuse, barely wider than the prothorax and three-fourths longer, the humeri 

 somewhat swollen; sculpture nearly as in the preceding, except that the 

 intervals are not quite so wide and with the minute remote punctulation much 

 less evident; short transverse pygidium with a large impressed channel along 

 the apex, not observable in the preceding type; legs moderate, the tibiae 

 shorter and more slender than in the preceding. Length 2.4 mm.; width 

 1.25 mm. Brazil (Santarem). One specimen obsolescens n. sp. 



