Brazilian Baring 275 



white scales, of similar nature throughout; beak ( 9 ) as long as the head and 

 prothorax, finely, sparsely punctured, except at the sides basally, the antennae 

 in great part missing in the type; prothorax a fifth wider than long, the parallel 

 sides strongly, subevenly arcuate, widest near the middle, the truncate non- 

 tubulate apex more than half as wide as the base; surface alutaceous, micro- 

 reticulate, the punctures strong and moderately separated, with a smooth median 

 line; basal lobe short, feebly sinuato-truncate, slightly reflexed; scutellum small, 

 free, squamose; elytra about one-half longer than wide, barely as wide as the 

 prothorax and twice as long, the sides but slightly converging and broadly arcuate, 

 obtusely rounded at tip; grooves moderate; intervals flat, with strong, loosely 

 confused punctures, the surface shining; first ventral suture distinct. Length 

 3.5 mm.; width 1.3 mm. Brazil (Rio Grande do Sul). One specimen received 

 from an unrecorded source. 



The mandibles, which are a distinctive feature of this aberrant 

 species, are sufficiently described in the table of genera. 



Lorena n. gen. 



This genus also belongs near the Nicentrid series, because of its 

 prominent mandibles, but is very different in form and facies. The 

 body is stout, suboval, strongly convex, shining, though strongly 

 sculptured throughout and very sparsely squamulose. Beak rather 

 long and moderately arcuate, separated by a feeble subsulciform 

 impression, somewhat thick and sharply, longitudinally sculptured 

 (o 71 ), or evidently more slender and less sculptured (9); the 

 mandibles scarcely in close contact when closed, except at apex, 

 and having a submedian internal tooth. Antennae beyond the 

 middle (o 71 ), more nearly medial (9). the first funicular joint 

 almost as long as the next three, the outer joints slightly dilated 

 and compact, the oval club not abrupt, its basal segment fully 

 half the mass. The prosternum, unlike any of the true Nicentrids, 

 has two short erect spines in the male, not separated by a cavity, 

 but, anteriorly, there is a rather deep subtransverse fossa; the 

 coxae are moderately separated. The prothorax is not distinctly 

 tubulate at apex, and the legs are rather short. There are appar- 

 ently three species at hand as follows: 



Elytra more rapidly and obliquely narrowed in about apical half. Body stout, 

 shining, rufo-piceous, the squamules yellowish, very narrow and sparse on 

 the pronotum, a little wider and longer on the elytra, forming single in- 

 terstitial series, somewhat shorter and wider but sparse throughout be- 

 neath; beak (9) slender, smooth, cylindric, ' finely, closely punctate and 

 squamulose near the base, arcuate, becoming straighter basally, not quite as 

 long as the elytra; antennae medial, dark rufous; prothorax only a fifth or 

 sixth wider than long, the sides feebly converging and but very slightly 

 arcuate, rounding and oblique in about apical third; basal lobe very 

 small and rounded; punctures coarse and well separated, but coarser 

 and confluent in longitudinal rugae at the sides; smooth median line distinct; 

 scutellum small, subglabrous, quadrate and very free; elytra a fourth longer 

 than wide, evidently wider than the prothorax and two-thirds longer, the 



