400 Memoirs on the Coleoptera 



Centrinaspis perpusilla n. sp. — Narrowly suboval, strongly convex, 

 black, the legs and antennae more or less piceous; vestiture white through- 

 out, dense, linear and decumbent above, the scales broader than in any 

 other of the forms near picumnus, concealing the sculpture, more oval 

 and still denser beneath though similarly white; beak in the female 

 evenly and strongly arcuate, slender, nearly smooth and slightly less 

 than half as long as the body; prothorax only a fourth or fifth wider 

 than long, the moderately converging sides broadly, subevenly arcuate 

 to the pronounced apical tubulation, which is distinctly more than half 

 as wide as the base, the basal lobe abrupt, prominent and rounded as 

 usual; punctures dense, without smooth median line; elytra fully a third 

 longer than wide, distinctly wider than the prothorax at the rather 

 prominent humeri and four-fifths longer; striae moderate but deep, the 

 intervals with moderate ruguliform punctuation. Length (9 ) 1.8 mm.; 

 width 0.7 mm. Texas (Columbus). 



This species seems to be one of the more isolated of the picumnus 

 section in its minute size, narrow outline, broad and white though 

 subparallel scales of the upper surface and rather short, smooth 

 and strongly arcuate beak, with the antennae inserted at two-fifths ; 

 the beak is more slender distally, a little shorter and much more 

 arcuate than in the female of picumnus. 



It is highly probable that the Central American material assigned 

 by Mr. Champion to picumnus, pertains to one or more allied but 

 distinct species. 



*Centrinaspis segregans n. sp. — Oval, convex, shining, black, clothed 

 sparsely above with long sleijder yellowish squamules, the legs, beak and 

 antennae piceous; beak in the female half as long as the body, smooth, 

 slender and nearly straight, rapidly arcuate, thickened and punctate at 

 base; antennae inserted at the middle, the basal funicular joint longer 

 than the club; prothorax large, a fourth wider than long, the converging 

 sides evenly arcuate to the rather long subtubular apex, which is less 

 than half as wide as the base; punctures moderately coarse, not very 

 deep and separated by their own diameters or more, with an entire 

 smooth median line, the scales broader and close in basal spots at lateral 

 fourth; elytra evenly, rapidly parabolic, a fourth longer than wide, at 

 the somewhat swollen humeri slightly wider than the prothorax, three- 

 fifths longer; striae rather coarse, deep; intervals between two and three 

 times as wide as the striae, not coarsely, rather sparsely and subrugulosely 

 punctate, the slender squamules forming about two lines on each, coarser 

 and closer near the scutellum, very gradually closer on intervals two to 

 four from three-sevenths to four-fifths, nowhere mingled with darker 

 squamules; under surface with linear scales on the propleura, shorter, 

 more oval and separated elsewhere, but coarser and denser at the sides 

 of the hind body. Length (9) 4.0 mm.; width 1.85 mm. Mexico 

 (Temax, in northern Yucatan), — Champion. 



