404 Memoirs on the Coleoptera 



similarly closely squamose; elytra only a third longer than wide, in 

 shape and relationship with the prothorax nearly as in penicella, the 

 striae a little coarser; abdomen (cf) with the very feebly impressed 

 medio-basal part more finely and sparsely squamulose. Length (cf 9 ) 

 3.2-3.65 mm.; width i. 6-1. 85 mm. Cuba, — Baker. Four examples. 



Not very closely comparable with penicella, although regarded 

 as a variety of that species by Gyllenhal. Not only is the vestiture 

 notably shorter and less shaggy, but it is almost pure white in color, 

 more squamiform beneath, and the beak in both sexes is shorter, 

 with the antennal insertion more nearly similar in the sexes and 

 much less basal in the female. The denuded spaces on the elytra 

 are much larger and more conspicuous. 



*Centrinaspis nimbata n. sp. — Smaller and much narrower than 

 penicella, black, the legs and antennae black; surface above and beneath 

 with uniform slender yellowish squamules, loose and somewhat shaggy 

 on the elytra, without denuded spots in the type, denser and less yellow 

 beneath but still long and linear; beak in the male feebly arcuate, some- 

 what thicker basally, only a little more than half as long as the body, 

 with the antennae inserted at the middle; prothorax a fourth wider than 

 long, the sides subparallel and nearly straight in basal, rounding in apical, 

 half; punctures coarse and dense, the scutellum somewhat transverse, 

 evenly squamose throughout; elytra fully a third longer than wide, 

 subacutely parabolic, at the tumid humeri distinctly wider than the 

 prothorax, two-thirds longer; striae moderate, almost concealed by the 

 shaggy vestiture; abdomen apparently not distinctly modified at base. 

 Length (cf) 3.0 mm.; width 1.25 mm. Mexico (Cuernavaca), — Wick- 

 ham. One example. 



Much smaller and narrower than penicella, with basally more 

 parallel prothorax, and probably never with so evident quasi- 

 denuded areas on the elytra as in that species; the antennal club 

 is somewhat smaller. The dimensions of my series of nine examples 

 of the true penicella are 3.2-4.2 by 1.45-2.0 mm. 



*Centrinaspis parens n. sp. — Subrhomboid-oval, convex and slightly 

 shining, black throughout, the antennae piceo-rufous; upper surface 

 loosely clothed with white squamules, very fine and linear on the pro- 

 notum, a little coarser and in two or three lines on the strial intervals, 

 uniform throughout both parts; beak (9) evenly arcuate, very slender 

 and smooth, abruptly very thick and densely sculptured in rather more 

 than basal two-fifths, nearly as long as the elytra, or (cf ), less arcuate and 

 thicker, but about as long and still thickened somewhat basally, the 

 antennae inserted at two-fifths (9) or at the middle (cf), rather long, 

 the club elongate-oval, having its joints almost equal in length; pro- 

 thorax a third wider than long, the converging sides evenly arcuate to 

 the feeble apical constriction; apex not quite half as wide as the base; 



