426 Memoirs on the Coleoptera 



are distributed over the same faunal regions, but they are fewer in 

 number. The body is oblong-oval, glabrous and strongly metallic 

 in coloration, the beak short, thick, nearly straight, feebly separated 

 from the head and with widely decussate and bifid mandibles. 

 The antennae are inserted more or less beyond the middle, with deep 

 and very oblique scrobes, the funicle slender, only slightly thicker 

 distally, the first joint longer than the next two, the others more or 

 less compact and transverse, the evenly elongate-oval club about 

 as long as the preceding five joints. The prosternum is more or 

 less concave, separating the coxae by rather more than their width 

 and with a large and nearly flat truncate posterior lobe, extending 

 about to the mesocoxal tangent. The legs are very nearly as in 

 Eurhinus, except that the tarsi are slightly narrower and the 

 connate claws smaller. The basal thoracic lobe, scutellum, pygid- 

 ium and male sexual characters are also nearly as in Eurhinus, and 

 the genus belongs to the same group, without the slightest doubt. 

 The species at hand are as follows : 



Prothorax with nearly parallel sides, abruptly rounded or angulate antero- 

 lateral^ 2 



Prothorax with converging sides, broadly rounded antero-laterally. Central 

 America 5 



2 — Pronotum with notably fine punctures, more evidently but not conspicuously 

 punctate anteriad 3 



Pronotum strongly and closely punctate, less so toward base 4 



3 — Color bright seneo-cupreous, polished, the beak greenish, the legs somewhat 

 infuscate; beak (o 71 ) only three-fifths as long as the prothorax, finely, sparsely 

 punctate, the upper profile evenly and feebly arcuate, the antennae black, or 

 ( 9 ) very little longer and otherwise similar, two-thirds as long as the pro- 

 thorax, the latter three-fourths wider than long, the sides parallel and nearly 

 straight to between apical fourth and third, where they are abruptly and 

 rather sharply angulate and carinate, thence very oblique and nearly straight 

 to the tubulation, which is short, gradual and feeble, much less than half as 

 wide as the base; punctures everywhere sparse, larger anteriorly; basal lobe 

 evenly and broadly rounded, the scutellum wider than long, ogival; elytra 

 at the feebly tumid humeri barely visibly wider than the prothorax, three- 

 fifths longer, a fourth longer than wide, the sides strongly oblique and nearly 

 straight, the apex obtusely rounded; striae fine but deep and sharp, finely, 

 remotely punctate; intervals infinitesimally and in part unilinearly, sparsely 

 punctulate; pygidium as in Eurhinus, deeply but loosely punctate; male 

 abdomen distinctly impressed at the middle of the base, the fifth segment 

 with two minute approximate pubescent foveae in transverse line at the 

 middle of the length. Length 34-3.6 mm.; width 2.15 mm. Brazil (San- 

 tarem). Two specimens angulata n. sp. 



Color deep black, with only very feeble violaceous lustre; beak (9) straight, 

 three-fifths as long as the prothorax, the latter three-fourths wider than 

 long, the sides nearly parallel and feebly sinuate from base for three-fifths, 

 there rapidly rounded but not angulate, obliquely prominent when viewed 

 laterally, strongly oblique and feebly subarcuate to the tubulation, which is 

 very short but abrupt, less than three-sevenths as wide as the base ; punctures 

 everywhere very fine and sparse, but little less so anteriad; lobe and scu- 



