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Antoinettia, new genus (Coleoptera: Erotylidae: Erotylinae: Tritomini), is erected for three species: A. audbala (Skelley), new combination, A. huhnei Skelley, new species, and A. kovariki (Skelley), new combination. A genus complex involving Ischyrus Lacordaire, 1842, and Megischyrus Crotch, 1873, is defined and a preliminary key to neotropical genera of Tritomini with coarsely facetted eyes is presented.
The beetle genus Pharaxonotha Reitter (Coleoptera: Erotylidae: Pharaxonothinae) is found in the cones of cycad genera in the New World, including species of Dioon Lindl., Ceratozamia Brongn., Microcycas (Miq.) A.DC and Zamia L. In this paper nine new species found in Dioon are described by Skelley, Tang and Pérez-Farrera: Pharaxonotha bicolor, P. dimorpha, P. fawcettae, P. gigantea, P. novoai, P. occidentalis, P. sclerotiza, P. woodruffi, P. vovidesi. A key to described species of Pharaxonotha inhabiting Dioon is presented, along with an account of Pharaxonotha kirschii Reitter for comparison.