190 Memoirs on the Coleoptera 



and upwardly curved and separated by a large circular and extremely deep 

 excavation. Length 8.0-8.3 mm.; width 3.8-4.25 mm. Colombia. Two 

 specimens communicated by Desbrochers des Loges longirostrisn. sp. 



Elytra without trace of lateral pale vittae; beak very slender and arcuate as a 

 rule, but never exceeding the elytra in length; lateral pronotal vitta adjacent 

 to or enveloping the margin 2 



2 — Larger species, the male prosternal spines long, except in curtnlns, and turned 

 upward apically; beak very strongly arcuate 3 



Smaller species, always less than 4 mm. in length; beak much less arcuate and 

 not quite so long; male prosternal spines very short 7 



3 — Lateral pronotal vittae extending downward near the apex to the small pro- 

 sternal fossa. Form subrhombic-oval, rather strongly and very closely 

 punctured throughout; broad pronotal and the elytral vittae, also the met- 

 episterna, clothed with very dense pale ferruginous scales; remainder of the 

 surface with minute, sparse squamules, dark brown above and whitish 

 beneath; beak very slender, evenly and strongly arcuate, as long as the 

 elytra in both sexes, the antennae piceo-rufous; prothorax nearly one-half 

 wider than long, with converging arcuate sides and moderately tubulate 

 apex; median line broadly smooth and polished, nearly flat; scutellum 

 quadrate, smooth and polished; elytra rapidly parabolic, nearly a third 

 longer than wide, much wider than the prothorax and not quite two and 

 one-half times as long; grooves coarse and deep; intervals somewhat finely 

 and closely punctate; prosternal processes of the male only a little longer 

 than the prothorax, feebly and upwardly curved. Length 5.6-5.7 mm.; 

 width 2.9-3.1 mm. Brazil (Rio de Janeiro). November. Six specimens. 



distinctus Boh. 



Lateral pronotal vittae not extending downward at the sides apically 4 



4 — Sides of the prothorax converging and subevenly, more or less strongly arcuate 

 from base to the pronounced tubulation; male prosternal spines long 5 



Sides of the prothorax more parallel basally, more strongly rounding and con- 

 verging anteriorly to the tubulation, which is short and feeble; male pro- 

 sternal spines very short, erect 6 



5 — Body subrhombic-oval, elongate, closely and strongly punctured throughout, 

 the dense lateral pronotal vittae reddish, the elytral vittae more whitish; 

 under surface with dense whitish scales, broadly toward the sides of the ab- 

 domen, on the lateral parts of the metasternum, except at the margins, through- 

 out the met-episterna and toward the upper end of the mes-epimera; small 

 close squamules of the upper surface dark brown, of the medial parts of the 

 abdomen fine and whitish, elsewhere almost glabrous; beak strongly, subevenly 

 arcuate, three-fourths as long as the elytra, slender and moderately punctate 

 distally, stouter and strongly sculptured basally, not at all gibbous at base 

 above, the head remarkably convex; prothorax scarcely a third wider than 

 long, the punctures strong, very deep and dense, virtually contiguous; 

 median line polished, nearly flat, subobsolete anteriorly; scutellum sub- 

 quadrate, sinuato-truncate and with a few small punctures; elytra a third 

 longer than wide, evenly parabolic behind, with somewhat prominent humeri, 

 much wider than the prothorax but scarcely more than twice as long, the 

 sides moderately oblique and in part nearly straight; grooves deep, about a 

 third as wide as the densely punctured intervals, the seventh and eighth 

 intervals narrower as usual, and with the punctures coarser and uniseriate; 

 abdomen (d") only flattened medially and strongly, densely punctate. 

 Length 5.8-6.0 mm.; width 3.0-3.2 mm. Brazil (Chapada — forest). No- 

 vember. Two specimens gratus n. sp. 



Body slightly more abbreviated and with shorter prothorax, almost similar 

 throughout in sculpture and vestiture; beak still shorter and not quite so 



