456 Memoirs on the Coleoptera 



apex; intervals twice as wide as the striae, each with a single loose 

 series of rather large and conspicuous though somewhat shallow 

 punctures. Length (9 ) 2.7 mm.; width 0.9 mm. North Carolina 

 (Black Mts.), — Beutenmiiller uniseriatus n. sp. 



The very short beak and nude scutellum might be held to separate 

 striatopunctatus as a different genus, but the same inconstancy in 

 vestiture of the scutellum is observable in Centrinopus. Convexulus 

 is from the same locality as ordinatus and comes rather near it in 

 general structure, but it is much narrower, with shorter elytra and 

 longer, laterally much less rounded prothorax, with decidedly finer 

 and sparser punctures and rather longer beak, the comparisons being 

 made from the male. These were both sent to me by Mr. Champion 

 under the name lineicollis Boh., but Boheman states that in that 

 species the pronotum is densely punctate, so that they cannot be 

 considered as even closely allied. LeConte selected to represent 

 lineicollis, one of our species with dense, longitudinally rugose 

 pronotal sculpture, which is also an incorrect identification, as 

 recognized by Champion, who renamed it lecontei. In fact I do 

 not at present have anything corresponding closely with the 

 Boheman description of lineicollis, and ingenuus Csy., which was 

 placed in synonymy by Mr. Champion, is a distinctly different thing, 

 with widely isolated thoracic punctures and more broadly rhomboid- 

 oval body. The Florida species named neglectus by Blatchley, 

 I have not seen. 



The female is comparatively rare throughout this genus, as may 

 be inferred from the sex identifications given in the above table. 



Acentrinops n. gen. 



The body in this genus is broadly oval and sparsely squamose, the 

 beak separated from the head by a fine sulcus, the mandibles when 

 closed forming an acute and prominent ogive, not at all decussate, 

 the inner margins feebly emarginate near the apex; the antennal 

 funicle is slender, the basal joint much, the second less, elongated, 

 the club well developed, very abrupt and oblong-oval, its basal 

 joint a third the mass. The anterior coxae are separated by about 

 one-half their width, the presternum unarmed in the male, deeply 

 foveate in anterior half, the tibiae strongly mucronate within at tip, 

 the third tarsal joint small, only feebly dilated and the tarsal claws 



