title: Notes on the Neotropical Zethus Fabricius, 1804 (Hymenoptera, Vespidae, Eumeninae) with the description of two new species from Brazil.
abstract: Two new species, Zethus (Zethus) aliceae Lopes, sp. nov. (Brazil) and Z. (Zethus) sinuostylus Lopes, sp. nov. (Brazil) are described and figured. New synonymy is proposed for Zethus (Zethoides) biglumis Spinola, 1841 (=Zethus ferrugineus de Saussure, 1852, syn. nov.
authors.affiliation: Universidade de São Paulo, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Departamento de Biologia. Av. Bandeirantes, 3900. CEP 14040-901. Ribeirão Preto, São Paulo, Brazil.; Email: rbotlopes@gmail.com.
authors.forename: Rogério B
authors.initials: RB
authors.lastname: Lopes
authors.affiliation: Universidade Paulista "Júlio de Mesquita Filho", Instituto de Biociências, Letras e Ciências Exatas, Departamento de Zoologia e Botânica, Laboratório de Aculeata. Rua Cristóvão Colombo, 2265. CEP 15054-000. São José do Rio Preto, São Paulo, Brazil.; Email: noll@ibilce.unesp.br.
authors.forename: Fernando B
authors.initials: FB
authors.lastname: Noll
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology; D000818:Animals; D001938:Brazil; D017753:Ecosystem; D005260:Female; D006927:Hymenoptera / Q000033:anatomy & histology / Q000145:classification*; D008297:Male