464 Memoirs on the Coleoptera 



tures and vestiture very much diversified. The genus is related to 

 Centrinogyna in having the apical part of the male pygidium exposed, 

 but it is very oblique and not vertical as it is in the latter genus. 

 It constituted the first subgeneric division of Limnobaris in my 

 revision of the subfamily, but I find under more careful comparative 

 study, that neither this nor any other of the types which I placed 

 under Limnobaris really belongs there, and Limnobaris, as exempli- 

 fied by T- album and pusio, does not occur in America. Our 

 described species oi Anacentrus are punctiger and nasutus of LeConte, 

 and bracatus, limbifer, blanditus, tabidus, deplanatus, denudatus, 

 planiusculus , oblitus and seclusus Csy. As an addition to these, 

 the following should be made known : 



Anacentrus ornatus n. sp. — Somewhat broadly oval, rather convex, 

 scarcely shining, the body and beak deep black, the legs obscure rufous; 

 vestiture above coarsely squamiform and yellowish, dense toward the 

 sides of the pronotum and toward the basal lobe, broadly dispersed 

 medially on the elytra, forming partial, rather close lines, single but 

 more broadly confused on the third interval behind the middle and the 

 third and fifth toward base, wanting in a large discal area from the suture 

 to the fourth groove and narrowly along the suture posteriorly, the 

 scutellum nude, the scales beneath white and separated, finer on the 

 abdomen; beak in the female slender, cylindric, nearly smooth, feebly 

 arcuate and as long as the head and prothorax, the antennae at four- 

 sevenths; prothorax two-fifths wider than long, the sides subevenly 

 arcuate, parallel basally, the feebly constricted apex more than half as 

 wide as the base; punctures moderately coarse, dense, the smooth line 

 evident only in about basal half; elytra a fourth longer than wide, para- 

 bolic, at the moderately tumid humeri evidently wider than the prothorax, 

 three-fourths longer; grooves coarse; intervals not twice as wide as the 

 grooves, with moderate punctures in single lines, in some parts confused. 

 Length ( 9 ) 2.6-2.8 mm.; width 1.15-1.35 mm.; Missouri (St. Louis), 

 Tennessee (Memphis) and Indiana. 



More closely allied to bracatus than to any other described species, 

 but differs in its smaller size and less obese form, closer pronotal 

 punctures and more squamose strial intervals; the single line of long 

 remote pale scales on the third interval in bracatus is wholly wanting 

 here. 



Anacentrus ovulatus n. sp. — Broadly ovulate, small in size, convex, 

 slightly shining, black, the legs piceous; upper surface with the whitish 

 scales close along the sides of the pronotum and sparse medio-basally, 

 elsewhere wanting, on the elytra arranged somewhat as in ornatus but 

 less dense and conspicuous where present, beneath sparse, each lying 

 within a coarse puncture; beak in the female cylindric, nearly smooth, 



