60 Memoirs on the Coleoptera 



7 — Form broadly oval, smooth but rather dull, dark red-brown in color through- 

 out, the head and beak blacker; beak moderately thick, very feebly arcuate, 

 short, only three-fourths as long as the prothorax, feebly tapering and 

 compressed, the sides coarsely, densely sculptured, finely and very densely 

 strigato-punctate above, the transverse basal impression feeble, the frontal 

 fovea deep and conspicuous; antennae medial, of the same structure as in 

 all the preceding; prothorax very large and subequal in width to the elytra, 

 not quite a fourth wider than long; sides slightly converging and nearly 

 straight, gradually strongly rounding beyond the middle to the strong 

 tubulation; surface with the extremely minute punctulation gradually 

 stronger toward the sides; basal lobe throughout with rather strong and 

 close punctures, subtruncate at tip, the lateral impressions obsolete; scutel- 

 lum very small, quadrate, feebly impressed along the middle; elytra para- 

 bolic, scarcely longer than wide, across the moderate, rounded and slightly 

 prominent humeri only a sixth or seventh wider than the prothorax, the 

 subapical prominences obtuse and feeble; grooves very coarse, deep, abrupt, 

 punctate at bottom, the intervals flat, minutely and remotely punctulate; 

 abdomen at base finely, sparsely punctate, at least on the second segment; 

 legs strongly, closely punctate; outer basal tooth of the hind tibiae narrow, 

 very acute and aciculate. Length 3.0 mm.; width 1.7 mm. Brazil (Cha- 

 pada — campo). October. One specimen discolor n. sp. 



8— Body obtusely oval, smooth, deep polished black throughout; beak only 

 moderately thick, very evenly and distinctly arcuate, almost as long as the 

 head and prothorax, slightly compressed, strongly, closely punctate, finely 

 and sparsely above, separated from the head by a moderate impression; 

 prothorax only a fifth wider than long, the sides distinctly converging and 

 nearly straight, gradually broadly rounding beyond the middle to the not 

 very abrupt, short tubulation, which, as usual, is much less than half as 

 wide as the base; surface very smooth but, at each side except toward apex, 

 there is a cluster of rather coarse separated punctures; basal lobe moderate, 

 nearly smooth, but with distinct lateral impressions of the thoracic base; 

 scutellum very small, quadrate, feebly canaliculate; elytra broadly parabolic, 

 slightly elongate, only very slightly wider than the prothorax, the subapical 

 swelling obvious, the discal outline behind subtruncate when viewed antero- 

 obliquely; humeral swellings very slight, broadly rounded; grooves narrow 

 but deep and abrupt, becoming obsolete on the flanks except apically, the 

 ninth and tenth grooves deep; propleura impunctate, the rest of the under 

 surface rather strongly punctate, especially the mes-epimera; hind tibiae 

 sharply angulate externally at base. Length 2.75 mm.; width 1.65 mm. 

 Brazil (Santarem). One specimen scuticulatus n. sp. 



Body more oblong-oval, highly polished and piceous-rufous in color throughout; 

 beak rather thick and strongly, evenly arcuate, making a distinct angle 

 with the head above, about as long as the prothorax, shining, subcylindric, 

 finely, sparsely punctate, the antennae medial, of the usual structure; pro- 

 thorax much shorter, two-fifths wider than long, the sides almost parallel, 

 feebly arcuate, rapidly rounding and strongly convergent beyond the middle, 

 the well-marked tubulation half as wide as the base, smooth and completely 

 impunctate throughout, the basal lobe moderate and rounded, the lateral 

 impressions subobsolete; scutellum very small, subquadrate, flat, narrower 

 than long; elytra large, very obtusely oval, a fourth longer than wide, a 

 fourth wider than the prothorax and between two and three times as long, 

 obtusely rounded at apex, the posterior elevations evident but not producing 

 a truncation of the surface to oblique view; humeri not prominent, broadly 

 rounded; grooves not coarse but very deep and extremely abrupt, impunc- 

 tate, 7 and 8 extremely fine and subobsolete; intervals flat and very smooth; 



