340 Memoirs on the Coleoptera 



robustula; scutellum rather wider, and with less oblique sides; elytra as in 

 robustula, but just visibly wider than the prothorax and only two-fifths 

 longer; metasternum with the punctures closer and less coarse; male without 

 discernible sexual modification beneath. Length 3.7-3.75 mm.; width 1.6- 

 1.65. Brazil (Chapada). On flowers, in forest clearings. Two specimens. 



chapadana n. sp. 

 Body larger and more elongate, depressed, shining and deep black throughout; 

 beak (cf) thick, feebly arcuate, a little longer than in the preceding, the 

 antennae medial; prothorax as long as wide, somewhat wider just beyond 

 the middle than at base, the sides strongly rounded, becoming feebly con- 

 vergent and nearly straight behind the middle, the rather distinct tubulation 

 a little less than half as wide as the base; punctures as in chapadana but still 

 more minute toward the middle; basal lobe less prominent than in either 

 of the preceding, the scutellum as in chapadana; elytra similar in form but 

 a little longer, more than a fourth longer than wide, barely visibly wider 

 than the prothorax and two-fifths longer; metasternum nearly as in the 

 preceding; male without evident sexual characters beneath. Length 4.3 

 mm.; width 1.85 mm. Brazil (Chapada). On flowers. October. One 

 specimen subovalis n. sp. 



It is probable that all the species occur in flowers, perhaps of 

 different species. The last three species constitute a rather distinct 

 subgeneric group. 



Liotheantis n. gen. 



The body in this and the two following genera assumes an entirely- 

 different aspect from any of the preceding, being exactly homologous 

 with the prevailing type in the Gentrinini. In the present genus 

 the body is completely impunctate above and only minutely and 

 very remotely punctulate beneath, the beak long, very slender and 

 evenly arcuate, thickened and more sculptured only for a short 

 distance at the extreme base, and separated from the head by a 

 very moderate impression, the mandibles dentate and decussate. 

 The antennae are distinctly behind the middle, long and slender, 

 the scrobes nearly horizontal, the scape virtually attaining the eye, 

 slender and capitate, the first six funicular joints slender and sub- 

 glabrous, the first as long as the next three, the second also elongate, 

 the seventh abruptly dilated to the width of the club, which it 

 closely adjoins, and it is similarly finely, densely pubescent, the 

 club long, oval, with the first segment nearly half the entire length. 

 The prosternum is even, the coxae separated by about twice their 

 width. The legs are rather long and slender, the tarsi slender and 

 the claws notably long, divergent, the prothorax tubulate at apex, 

 with almost obsolete basal lobe, the scutellum free, flat and obtri- 

 angular, and the elytra deeply but not coarsely grooved, the grooves 

 coarse and exarate only at the extreme apex. The single species 

 is as follows: 



Liotheantis ebenina n. sp. — Elongate-oval, feebly subrhombic, convex and 

 polished, deep black throughout; beak (9) long, very slender, cylindric and 



