334 Memoirs on the Coleoptera 



rather coarse laterally, the eighth and ninth cariniform internally; abdomen 

 convex, minutely and sparsely punctulate, more closely and evidently at 

 apex. Length 4.5 mm.; width 2.0 mm. Brazil (Santarem). One specimen. 



lyterioides n. sp. 



Body nearly similar but larger and still broader; lustre and vestiture nearly 

 similar, black, the under surface piceous-black ; beak nearly similar but 

 shorter, only three-fourths as long as the prothorax, the latter almost of 

 similar outline, but nearly a fourth wider than long, and with the sides 

 somewhat more rapidly rounding anteriorly to the similarly narrow tubula- 

 tion; base similar, the lobe longer and more rounded; sculpture nearly 

 similar, except that the larger punctures at the sides are less coarse and rela- 

 tively more widely separated; elytra nearly similar, except that the intervals 

 are slightly convex and with the serial punctures toward the sides relatively 

 less strong; under surface nearly similar, except that the met-episterna are 

 longer, but with the. same rather closer squamules, the smooth outer margin 

 of the metasternum broader; anterior femora much thicker and more swollen 

 than in lyterioides, more setulose; feeble convexity extending from each 

 anterior coxa to the constriction, wider and more densely clothed. Length 

 5.0 mm.; width 2.3 mm. A single specimen, received without label in the 

 Levette collection, but evidently from somewhere in the Amazon Valley — 

 possibly Para latior n. sp. 



Body smaller and much narrower than in lyterioides, but of similar outline, still 

 more depressed and subglabrous integuments; color dark red-brown, the 

 legs and under surface paler, rufous; beak nearly similar but about as long 

 as the prothorax, the latter narrower, scarcely a sixth wider than long, of 

 nearly similar outline, but with the tubulation relatively broader, nearly 

 half as wide as the base, which is similar; punctures rather small and sparse, 

 but two or three times as large as in the two preceding, relatively much less 

 remote and, at the sides, rather coarse and decidedly dense; broad smooth 

 median line only extending a little beyond the middle and feebly convex, 

 not fiat as in the preceding; elytra subparallel, obtusely rounded behind, a 

 fourth longer than wide, a little wider than the prothorax and four-fifths 

 longer; grooves similar; intervals flat, twice as wide as the grooves, each 

 with a single series of punctures, which are only moderate in size but twice 

 as close-set as in lyterioides; abdomen and under surface nearly similar, the 

 anterior femora subsimilar. Length 3.7 mm.; width 1.7 mm. Brazil 

 (Santarem). One specimen depressa n. sp. 



It is singular that each of these seven species should be represented 

 at present by but a single specimen from the same geographic 

 region, but I am unable to make any very satisfactory combinations, 

 and there are three remarkably different type-forms among them. 

 All of these types are probably females, excepting perhaps the first, 

 but unequivocal sexual modifications are not apparent. It is a 

 rather remarkable genus, without much doubt having peculiar and 

 secluded life habits. It is of course quite possible that the feeble 

 pronotal impressions of repentina may be an individual accidental 

 character, but the species is distinct in many other ways. 



Notesiaspis n. gen. 



The body in this genus is much smaller than in the preceding, 

 moderately convex, oblong-suboval and clothed rather closely as a 



