Brazilian Baring 347 



from a greater distance beyond the middle; punctures in the large glabrous 

 median region more close-set, denser apically, the median smooth line broad, 

 much more sharply defined than in either of the two preceding; elytra 

 nearly as in suturalis but with the lateral pale squamules much more abun- 

 dant; grooves not quite so coarse. Length 2.8 mm.; width 1.35 mm. 

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



5 — Surface densely opaque, because of excessively minute and close punctuation, 

 as in the genus Camerones. Form rather stout, oblong-oval, convex, dark 

 red-brown, the elytra and legs slightly paler; squamules ochreous-yellow 

 above and beneath, small, sparse and intermingled with some darker and 

 more pointed on the pronotum, close-set and in single lines on the elytra, 

 but broadly confused toward the scutellum, especially on the second interval, 

 very small and well separated beneath; beak ( 9 ) evidently longer than the 

 head and prothorax, feebly arcuate, very slender, smooth and shining, 

 thickened and sculptured behind the slender antennae, which are unusually 

 basal, being a little behind basal third; prothorax a fifth wider than long, 

 the sides moderately and very evenly arcuate, becoming gradually parallel 

 or somewhat incurvate basally, the abrupt tubulation fully half as wide as 

 the base; punctures fine, feeble and sparse, dense and larger at the sides, 

 without median smooth line; elytra oval, only slightly longer than wide, a 

 fifth wider than the prothorax and one-half longer; striae very shallow and 

 not well defined, the intervals somewhat prominent along the middle. Length 

 3.0 mm.; width 1.38 mm. Brazil (Chapada — forest). October. One fe- 

 male example rufinus n. sp. 



Surface shining between the regular punctures 6 



6 — Upper surface more or less opaque, due to the density of the rather coarse 

 regular punctures, which, on the pronotum, have their bottoms opaque, the 

 very narrow interstices, however, polished; all the strial intervals confusedly 

 squamose, more broadly so toward base of the second interval; body oblong- 

 oval and convex 7 



Upper surface rather shining, the punctures never so dense, the interstrial squam- 

 ules for the greater part in single lines; form sometimes subcylindric 8 



7 — Form elongate, suboblong-oval. convex, with inflated rounded sides of the 

 prothorax, deep black and opaculate, the legs piceous-black; squamules 

 small, yellowish, distributed uniformly and loosely over the entire pronotum, 

 a little larger and confused but well separated throughout the interstrial 

 spaces, broader, dense and whiter beneath; beak (d") rather thick and 

 moderately arcuate, as long as the head and prothorax, dull and punctulate, 

 squamulose basally, the antennae slightly beyond the middle, nearly black; 

 prothorax wider at the middle than at base, a fourth wider than long, the 

 parallel sides evenly and rather strongly arcuate, strongly converging ante- 

 riorly, the feeble tubulation less than half as wide as the base; punctures 

 somewhat coarse and very dense throughout, but with a distinct narrow 

 impunctate and feebly tumid median line, not extending to base or apex; 

 elytra oval, with slightly prominent humeri, more than a fourth longer than 

 wide, slightly wider than the prothorax and two-thirds longer; grooves 

 sharply defined and deep; intervals coarsely, confusedly punctate; pygidium 

 shorter than usual, twice as wide as long; male abdomen not evidently 

 modified, the prosternal spines slender, porrect, somewhat upwardly curved 

 and a little more than half as long as the prothorax. Length 3.3 mm.; 

 width 1.38 mm. Brazil (Chapada— campo). October. One specimen. 



rotundicollis n. sp. 



Form much shorter, oblong-oval, piceous-black, the legs faintly rufous; squam- 

 ules yellowish, fine and loose throughout the pronotum, a little broader and 



