Brazilian Barin^e 225 



Microzalestes n. gen. 



In some respects this likewise monotypic genus somewhat re- 

 sembles the last, but it differs in its completely glabrous surface 

 above and beneath, relatively large prothorax and very feeble sculp- 

 ture. The beak is evenly arcuate, very slender, cylindric and 

 smooth beyond the subbasal antennae, rapidly dilated but smooth 

 and finely punctate in a little more than basal fourth, separated 

 from the head by a narrow and feeble reentrant angle, and with the 

 mandibles short, straight within and angulate when closed. Anten- 

 nae near basal fourth, moderate in length, with extremely short 

 scape, the first funicular joint about as long as the next three, the 

 club oval, abrupt and large, about as long as the five preceding 

 joints. Prosternum strongly, evenly canalate, widely separating 

 the coxae. Legs rather short and slender, feebly sculptured, the 

 hind tibiae not notably short, the claws small, strongly arcuate and 

 free. The prothorax is not tubulate at apex and the striae are 

 grooved but notably fine. The type is the following: 



Microzalestes basalis n. sp— Oblong-subrhombic, strongly convex, smooth, 

 black and polished; beak rather longer than the head and prothorax, the antennae 

 piceous; prothorax large, a third wider than long, the feebly convergent sides 

 slightly arcuate, more rounding and oblique anteriorly; apex less than half as 

 wide as the base; surface very smooth, not at all punctate; basal lobe small, 

 somewhat abrupt, its broadly rounded apex with a very minute medial sinus; 

 scutellum flat, small, moderately free, rather narrower than long and almost 

 rounded; elytra triangular, scarcely a fifth longer than wide, only very slightly 

 wider than the prothorax and three-fifths longer, the oblique sides broadly arcuate, 

 the apex somewhat narrowly rounded; grooves narrow, scarcely a sixth as wide 

 as the smooth flat intervals; abdomen highly polished, finely and sparsely 

 punctured. Length 2.7 mm.; width 1.6 mm. Brazil (Santarem). One female 

 specimen. 



There can be but little doubt relating to the identification of 

 this species, the feebly subrhombic outline, large prothorax, gla- 

 brous surface and finer elytral striation being distinctive. The beak 

 in the male probably differs notably from that of the female de- 

 scribed above. 



Remertus n. gen. 



This genus, also represented at present by a single species, has a 

 highly specialized structure and distinctive appearance. The body 

 is elongate-oval, partially clothed with decumbent ochreous scales, 

 the prothorax relatively larger than in any other genus of the group, 

 gradually and moderately tubulate at apex, the legs sparsely punc- 

 tured and the tibiae densely fimbriate within in the male. The 

 beak differs greatly in the sexes and in the male is evenly and 

 feebly arcuate and tapers very gradually from base to apex, very 

 slender distally but dorsally flattened; in the female it is perfectly 



T. L. Casey, Mem. Col. X, Aug. 1922. 



