A new species of Uroxys Westwood, 1842 (Coleoptera: Scarabaeidae: Scarabaeinae) from central Brazil, and taxonomical remarks on Uroxys epipleuralis (Boucomont, 1928).

Uroxys punctatus, new species, is described from central Brazil based on taxonomic characters in the cephalic and pronotal punctations and in the male genitalia. A comparative diagnosis with U. epipleuralis (Boucomont, 1928), a morphologically similar species, is provided. A lectotype is designated for U. epipleuralis from a series of four syntypes. Uroxys thoracalis Balthasar, 1940 is newly established as a junior subjective synonym of U. epipleuralis, whereas the previously proposed synonymy between the latter and U. dureti Martnez, 1947 is confirmed. Both nomenclatural acts are based on the study of the respective type specimens. A detailed literature review, illustrations of diagnostic characters, and distributional data for each species are provided.

A taxonomic revision of the South American species of Pseudocanthon Bates, 1887 (Coleoptera: Scarabaeidae: Scarabaeinae: Deltochilini).

The South American species of Pseudocanthon Bates, 1887 (Coleoptera: Scarabaeidae: Scarabaeinae: Deltochilini) are reviewed. In this work, 10 valid species and two subspecies are recognized for the genus. Among these species, five are recorded in South America, including three new species: P. perplexus (LeConte, 1847), P. xanthurus (Blanchard, 1847), P. vazdemelloi new species, P. pantanensis new species, and P. chaquensis new species. A lectotype is designated for P. xanthurus (Blanchard, 1847). In this revision, each species is analyzed as follows: a detailed literature review, an identification key for the South American species, a diagnosis, descriptions, illustrations of key morphological characters, list of examined material, and geographic distribution.