88 Memoirs on the Coleoptera 



with longitudinally anastamosing loose sculpture, the tibiae coarsely fluted. 

 Length 2.45 mm.; width 1.4 mm. Brazil (Chapada). One specimen. 



merula n. sp. 

 5 — Prothorax obscurely rufous, the elytra black. Body subrhombic-oval, the 

 under surface piceous, having moderate and separated punctures bearing 

 small but distinct decumbent setiform squamules, smaller and sparser on 

 the abdomen; beak rather thick, feebly arcuate, as long as the head and 

 prothorax, strongly sculptured at the sides, more feebly above and feebly 

 subcarinate basally, dilated apically, as usual in the genus, the mandibles 

 very prominent; eyes separated by rather more than half the width of the 

 beak, the surface impressed between the hind parts of the eyes; head strongly 

 and closely punctate; prothorax fully three-fourths wider than long, the 

 converging sides moderately and subevenly arcuate from base to the truncate 

 apex; basal lobe gradual, broadly rounded; surface with fine and sparse but 

 very distinct punctures, gradually stronger and less sparse laterad; scutellum 

 very small, arcuately triangular; elytra slightly elongate, the oblique sides 

 feebly arcuate; apex broadly rounded and obtuse; humeri rounded, though 

 slightly prominent; grooves deep, feebly punctured toward suture and 

 sides; intervals with scattered minute punctures. Length 2.9 mm.; width 

 1.6 mm. Brazil (Corumba — highland). March. A single male. 



rufulicollis n. sp. 



Prothorax concolorous, deep black like the remainder of the surface 6 



6 — Body moderate, about 2.5 mm. or more in length 7 



Body rather minute, much under 2.5 mm. in length 10 



7 — Pronotum very smooth, nowhere evidently punctate — even lateraHy. Form 

 rather stout, very evenly oval, deep black and highly polished; beak moder- 

 ately slender, feebly arcuate, much dilated distally, about as long as the 

 head and prothorax, moderately sculptured, not carinulate; eyes separated 

 by less than half the width of the beak, the interspace feebly impressed, 

 foveate posteriorly, the head sparsely punctate; prothorax two-thirds wider 

 than long, inflated a'nd with arcuate converging sides basally, becoming more 

 oblique and just visibly sinuate distally, the truncate apex as usual; surface 

 merely with remote infinitesimal punctulation; basal lobe gradual, rounded 

 medially, subtruncate at apex, the scutellum moderate, flat and arcuately 

 triangular as usual; elytra not distinctly longer than wide, evenly and 

 obtusely parabolic, with evenly rounded and feebly prominent humeri- 

 grooves coarse, very deep, abrupt and smooth; intervals flat, very smooth 

 hind femora elongate-oval as usual, loosely punctate, grooved beneath, the 

 tibiae coarsely fluted; rather coarse and loose punctures of the under surface 

 without setse as usual. Length 3.15 mm.; width 2.25 mm. Brazil (Santa- 



rem). One specimen laevissimus n. sp. 



Pronotum with evident punctulation, especially toward the sides 8 



8 — Eyes separated by evidently more than half the width of the beak, the inter- 

 space shining and concave; prothorax very short, much less than half as 

 long as the elytra. Body rather stout, oval, polished, deep black; beak 

 fully as long as the head and prothorax or a little longer ( 9 ), rather sparsely 

 punctate, minutely so above, where there is no trace of carina, feebly ( 9 ) 

 or more strongly (c?) dilated at apex; head rather finely, sparsely purtctate; 

 prothorax very nearly twice as wide as long, the entire surface with small 

 and sparse but distinct impressed punctures; sides converging and distinctly 

 arcuate, gradually becoming sinuate apically in an exceptional way; trun- 

 cate apex as usual; basal lobe not very gradual, with its apex very narrowly 

 rounded; scutellum as in the preceding; elytra barely longer than wide, 

 parabolic, the humeri slightly prominent and rounded; grooves deep, feebly 

 punctate along the bottom; intervals minutely and remotely though visibly 



