Abstract The bee genera Callonychium Brèthes, Psaenythia Gerstaecker and Anthrenoides Ducke are newly recorded in Piauí State, northeastern Brazil. The species reported here are Callonychium brasilience (Ducke, 1907) and Psaenythia variabilis Ducke, 1908, and an as yet unidentified species of Anthrenoides. Images and all known distributional records of these species are also provided. The new occurrences reported herein expand the distribution range of the species to the Caatinga biome.

ABSTRACT Three new genera of Protandrenini bees from South America are described. Luisanthrena new genus is proposed to include L. ruzae, new species (from Ecuador) and L. vargasllosai (Gonzalez & Alvarado, 2019), new combination (from Peru). The new genus Cisanthrena includes only the unusual species Cisanthrena perforata n. sp. from forested areas of the Andes in Peru. In addition, Austellurgus new genus is proposed to accommodate A. avulsus (Ramos & Melo, 2006), new combination (southeastern Brazil).

Abstract The Hymenoptera collection of the Museu de Zoologia da Universidade de São Paulo, Brazil (MZSP) houses one of the most important collections for the Brazilian and Neotropical wasp faunas. The present catalogue lists the type specimens of Pompiloidea, Thynnoidea and Vespoidea (Insecta, Hymenoptera) deposited in the MZSP. The collection includes a total of 422 type specimens (66 holotypes, 28 lectotypes, 278 paratypes, 45 paralectotypes, and five syntypes), being 91 Pompiloidea (40 Mutillidae type specimens of 10 genera and 25 species, 51 Pompilidae type specimens of 4 genera and 27 species), 191 Vespoidea (15 genera and 86 species of Vespidae), and 18 Thynnoidea (eight genera and 12 species of Thynnidae). All information written in labels was compiled and is presented along with additional data from the original descriptions, MZSP records and other sources. We provide Specimage links to high-resolution photographs of holotypes and lectotypes at the Hymenoptera image database of the Ohio State University.

RESUMOO presente catálogo apresenta uma lista dos espécimes tipo de abelhas (Hymenoptera, Apidaes.l.) depositados no Museu de Zoologia da Universidade de São Paulo, Brasil (MZSP). A coleção de Hymenoptera do MZSP representa uma das mais importantes coleções para a fauna brasileira e Neotropical, incluindo um número relativamente grande de tipos e táxons representados. A coleção de Apidae abriga um total de 473 espécimes-tipo (101 holótipos, 30 lectótipos, 190 parátipos, 34 paralectótipos e 119 síntipos) pertencentes a 257 espécies classificadas em 88 gêneros, 22 tribos e cinco subfamílias (Andreninae, Apinae, Colletinae, Halictinae, e Megachilinae). São apresentadas as informações das etiquetas, informações adicionais a partir dos registros do MZSP e da literatura publicada, e cometários taxônomicos. Fotografias em alta resolução dos holótipos e lectótipos estão disponibilizadas digitalmente através de links para o Specimage (banco de dados de imagens da Ohio State University).

ABSTRACTThe present catalogue lists the bee types (Hymenoptera, Apidaes.l.) deposited in the Museu de Zoologia, Universidade de São Paulo, Brazil (MZSP). The Hymenoptera collection of the MZSP is one of the most important collections for the Brazilian and Neotropical faunas, holding relatively large number of types and represented taxa. The Apidae collection includes a total of 473 type-specimens (101 holotypes, 30 lectotypes, 190 paratypes, 34 paralectotypes, and 119 syntypes) that represent 257 species currently classified in 88 genera, 22 tribes, and five subfamilies (Andreninae, Apinae, Colletinae, Halictinae, and Megachilinae). Label data and additional information from the MZSP registers, literature sources, and taxonomic remarks are given, including high-resolution photographs of holotypes and lectotypes available through links to Specimage (image database of The Ohio State University).