234 Memoirs on the Coleoptera 



lines on some of the interstrial intervals, and with others sparsely scattered 

 on the surface; prosternal spines of the male short to unusually long, 

 conspicuous and extending beyond the head; sexual differences occasionally 

 very marked; beak rather long Ill 



Scales of the upper surface uniform and narrow, dense and fulvous over the entire 

 pronotum, white in an even narrow sutural vitta on the elytra; beak long; 

 antennae very long; prosternal spines of the male short IV 



B — Scales slender, fulvous, uniform and close on the pronotum, whitish, scattered 

 and forming uneven broken lines on the elytra; antennae long, the club 

 unusually long, especially in the male; anterior coxae unusually widely 

 separated, the beak long and smooth V 



Scales parallel but wider as a rule, usually whitish or ochreous and dense over 

 the entire upper surface, except rarely in denuded sutural or s'ubsutural 

 areas posteriorly; antennae slender, with shorter club, the beak moderately 

 long to notably short; body moderate to minute in size VI 



I — Squamules of the darker parts of the elytra fine, blackish and more or less 

 inconspicuous 2 



Squamules of the entire elytra broader in form and dense 12 



Squamules of the entire upper surface large, parallel and conspicuous, though 

 not dense, white, with a few brownish intermingled on the pronotum medi- 

 ally 16 



2 — Pale scales of the elytra toward the sides forming only a narrow vitta along 

 the sixth interval in basal half. Body rhombic-oval, deep black, the pale 

 scales whitish, forming three vittae on the pronotum and, on the elytra, 

 besides the sublateral, forming a vitta along the first interval in basal half, 

 the second from base nearly to apex, and on the third and fourth in a short 

 line just behind the middle, the entire under surface densely squamose, the 

 legs more finely and loosely; beak ( 9 ) slender, strongly arcuate, almost 

 three-fourths as long as the elytra; antennae moderate in length and nearly 

 black; prothorax only a fourth wider than long, the converging sides evenly 

 and moderately arcuate throughout to the truncate apex, about half as wide 

 as the base; punctures strong and dense, the lobe short, gradual and broadly 

 rounded ; elytra a fourth longer than wide, with oblique and broadly arcuate 

 sides and rather narrowly rounded apex, with slightly reentrant sutural 

 angle, wider than the prothorax and three-fourths longer; intervals strongly, 

 closely, confusedly punctate and fully three times as wide as the striae. 

 Length 2.8-2.9 mm.; width 1.4-1.6 mm. Brazil (Chapada). March and 

 November. Two female examples australis n. sp. 



Pale scales more or less loosely and confusedly scattered toward the sides of the 

 elytra 3 



3 — Prothorax with the converging sides evenly and feebly arcuate from base to 

 apex. Integuments where exposed deep black and somewhat shining; pale 

 scales white, forming an entire loose vitta near each side of the pronotum 

 and, on the elytra, forming a long parallel sutural area behind the scutellum 

 in basal half, and thence scattered more broadly to the apex but almost 

 wanting suturally; on the under surface large and dense throughout; beak 

 (o 71 ) evenly cylindric, strongly arcuate and scarcely as long as the head and 

 prothorax, the antennae fuscous, moderately long; prothorax a fourth wider 

 than long, the truncate apex not quite half as wide as the base; punctures 

 strong and dense, shining, with a narrow smoother, but not well defined, 

 median line; elytra fully a fourth longer than wide, the oblique sides broadly 

 arcuate, the apex narrowly rounded, evidently wider than the prothorax and 

 four-fifths longer, the intervals three times as wide as the groove-like striae, 

 confusedly, strongly punctured and rather shining; male with the abdomen 

 very feebly impressed and less squamose medially at base, the prosternal 



