608 Coleopterological Notices, IV. 



wide vitta at lateral sixth, which is more densely squamose. Beak 

 glabrous but densely squamose near the base, rather stout, cylindri- 

 cal and evenly, strongly arcuate throughout, distinctly punctate 

 and nearly as long as the head and prothorax ; antennae very slender, 

 nearly as in striatus, but with the first funicular joint as long as 

 the next three. Prothorax slightly dilated, subparallel and broadly 

 rounded at the sides, narrowed toward the apex and quite distinctly 

 constricted but not tubulate, about four-fifths wider than long and 

 one-half as long as the elytra, the base transverse, with the median 

 lobe subobsolete; disk sparsely, somewhat unevenly, finely but 

 distinctly punctate. Scuteilum extremely small, flat, equilatero- 

 triangular. Elytra at base not quite as wide as the prothorax, very 

 slightly longer than wide, the striae fine but abrupt, remotely and 

 distinctly punctate, the intervals confusedly and minutely punctate. 

 Prosternum separating the large anterior coxae by scarcely more than 

 one-fourth of their own width ; tarsal claws small but slender, free 

 and moderately divergent. Length 3.4-3.8 mm. ; width 1.6-1.8 mm. 

 Florida (Baldwin). This species differs extremely from striatus 

 in many important structural characters, and is the only one which 

 has been taken in any number. The scales are rather easily abraded. 

 The epistomal lobe is very short and narrow, occupjnng the median 

 third of the width, and limited at each side by a long deep oblique 

 and arcuate fissure, the apex broadly sinuate in the middle ; in stri- 

 atus it is more than twice as wide, not at all advanced and is trans- 

 versely truncate at apex. 



WICENTRUS n. gen. 



The oblong-oval, sometimes almost cylindrical and convex form 

 of the body, will readily serve to distinguish the species of this 

 genus from those of Centrinus, where the outline is more rhom- 

 boidal. The beak is generally thick and rather short, differing but 

 slightly in the sexes, often strongly compressed or flattened at the 

 sides toward base, but, in contractus, becoming longer, cylindrical 

 and almost impunctate, at least in the female. The antennae are 

 inserted at about the middle in the female or slightly beyond in the 

 male. Mandibles rather well developed, nearly straight in external 

 outline, with their inner edge dentellate ; they are not decussate when 

 closed, the form then being anteriorly prominent in angle or ogive. 



The prosternum may be either canaliculate and feebly bicarinate 

 along the middle or perfectly flat, sometimes flat in the female and 



