294 Memoirs on the Coleoptera 



the second as long as the succeeding two, the outer joints not 

 dilated, the club elongate-oval, narrow, especially in the male, 

 rather abrupt, with its basal segment fully two-thirds the mass. 

 The presternum is flat, separating the coxae by fully their own 

 width and with a small feeble apical fossa, the spines of the male 

 usually not separated by a circular perforation. The legs are rather 

 long and slender, the prothorax narrowly tubulate at apex and with 

 moderate basal lobe, the scutellum small, free, subquadrate, finely 

 and sparsely punctate and with a few infinitesimal squamules, and 

 the elytra are grooved. The species are as follows: 



Body vgry stout and convex, with the inflated prothorax fully as wide as the 

 elytra. Piceous, not shining, the scanty vestiture yellowish above, white 

 but inconspicuous beneath; beak (cf) long, distinctly longer than the elytra, 

 very gradually and feebly tapering and with moderate but close punctures 

 at the sides, or ( 9 ) as long as the elytra, more slender and slightly less 

 arcuate, the antennae slender, piceous; prothorax two-fifths wider than 

 long, wider at basal fourth than at base, the sides rounded at base, thence 

 converging and straight to about apical third, then rounding and oblique to 

 the tubulation, which is scarcely more than two-fifths as wide as the base, 

 narrower and less inflated in the female; strigilation nearly uniform, dense, 

 rather coarse and waving, with a very fine and subtumid smooth median 

 line; elytra scarcely a fourth longer than wide, the arcuate sides strongly 

 oblique, the apex narrowly rounded, not wider than the prothorax (cf) or 

 distinctly wider (9), only one-half longer; grooves not very deep, rather 

 more than half as wide as the intervals, which have roughly confused and 

 somewhat coarse sculpture; male abdomen strongly convex, rather strongly, 

 loosely punctured and with moderate basal impression, the prosternal spines 

 much longer than in any other known species of the genus, very slender, 

 oblique, nearly straight and slightly longer than the prothorax in the type, 

 the usual apical fossa enlarged and deepened between them. Length 2.7-3.0 

 mm.; width 1. 4-1. 55 mm. Brazil (Santarem). Three specimens. 



inflatula n. sp. 



Body less stout, the prothorax not inflated in the male and with the sides not 

 curved inward at base; elytra distinctly wider than the prothorax in both 

 sexes 2 



2 — Form oval and convex, smaller and less stout than in the preceding, rufo- 

 piceous in color and similarly closely, strongly sculptured, also with scanty 

 vestiture; beak (cf) as long as the elytra, even in thickness and strongly 

 sculptured, moderately and evenly arcuate, or ( 9 ) a little longer than the 

 elytra, more slender, smoother and somewhat thicker basally than apically, 

 with some close punctures and a few squamules near the base; antennae 

 medial in both sexes; prothorax nearly a third wider than long, the feebly 

 converging sides slightly arcuate, rounding evenly beyond the middle to the 

 tubulation, which is distinctly less than half as wide as the base in both 

 sexes; sculpture nearly as in the preceding; elytra similar in outline, a 

 fourth longer than wide, evidently wider than the prothorax in both sexes 

 and fully one-half longer; grooves coarse; intervals alternating in width 

 much more obviously than in inflatula, similarly rugosely punctate; male 

 abdomen nearly similar, the prosternum with two very slender straight 

 spines, varying from nearly obsolete to three-fourths as long as the prothorax. 

 Length 2.2-2.5 mm.; width 1.1-1.25 mm. Brazil (Santarem). Four speci- 

 mens compacta n. so. 



