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Megaceropsis Dechambre, 1976 (Coleoptera, Melolonthidae, Dynastinae, Oryctini) is a South American genus with two known species until now: Megaceropsis quadridentata Dechambre, 1976 and Megaceropsis lecourti Dechambre, 1996. We describe a third species herein: Megaceropsis kleytoni sp. nov., from Brazil. Illustrations, a distributional map, and an identification key including all Megaceropsis species are provided. Additionally, a first record of M. quadridentata from Brazil is presented.

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ABSTRACT The Brazilian species of Euphoria Burmeister are revised. We describe E. euridesi sp. nov., a new species from the Cerrado biome of Brazil, and redescribe E. lurida (Fabricius 1775). Both species are illustrated and diagnostic characters that distinguish them are presented. A key to the seven South american species of Euphoria and observations on the natural history are also given.

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Two new species of the Pelidnota liturella species group are described from Brazil, Pelidnota everardoi sp. nov. and P. luciae sp. nov. The new species are included on the Pelidnota key proposed previously in the literature and an identification key is provided for the Pelidnota liturella species group. Diagnostic characters of the new species, illustrations of male genitalia, and photographs of type material are provided. Furthermore, notes about the Pelidnota liturella species group distribution and new Brazilian state records for two species are also provided: P. flavovittata (Perty, 1830) from Goiás, Rio de Janeiro and São Paulo; and P. liturella liturella (Kirby, 1819) from Ceará. Finally, distributional maps for all the P. liturella species group are provided.

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The Bothynus villiersi species group (Coleoptera: Scarabaeidae: Dynastinae: Pentodontini) is revised and is composed of five South American species: Bothynus villiersi Endrdi, 1968; Bothynus horridus Endrdi, 1968; Bothynus alvarengai Martnez, 1983; Bothynus spinophallicus (Ratcliffe Cave, 2021) new combination; and Bothynus belemensis new species. Redescriptions, illustrations, new diagnostic characters, identification key, and a first known geographical distribution map for the group are presented.

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ABSTRACT The taxonomic status and the geographic distribution of two species, Pelidnota gounellei (Ohaus, 1908) and P. ludovici Ohaus, 1905, is revised and the species are revalidated. A lectotype for Pelidnota tricolor Nonfried, 1894 is designated. The taxonomy of the species is briefly discussed, and a distribution map for the reviewed species is also provided. The distribution range of P. gounellei is expanded to the Minas Gerais state, Brazil.

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ABSTRACT Scarabeoidea (Insecta: Coleoptera) present more than 2000 species recorded from all over Brazil. They have been scarcely recorded from caves, and truly troglobitic species are yet to be found in the country. In this study, we carried out a review of all existing scarab beetles deposited until 2017 in the Coleção de Invertebrados Subterrâneos de Lavras (ISLA), at the Universidade Federal de Lavras (UFLA) (Minas Gerais, Brazil), one of the most important collections of subterranean invertebrates in South America. Ninety-two individuals belonging to 52 species were recorded, distributed in six families (Cetoniidae, Hybosoridae, Melolonthidae, Passalidae, Scarabaeidae and Trogidae). Scarabaeidae was the most diverse of them, representing more than 50% of the total of species recorded. We found Scarabeoidea beetles in 51 of the ~ 1600 caves examined, distributed in nine Brazilian states: Alagoas, Bahia, Distrito Federal, Espírito Santo, Goiás, Minas Gerais, Pará, Piauí, and Tocantins. Our results provide evidence that Scarabaeoidea beetles are not frequent in Brazilian caves, and their records in this kind of environment are mostly accidental. Exceptions include Trogidae and Aphodiinae species, which may be associated with bat guano. Our study presents the first list of Scarabaeoidea species sampled in Brazilian caves.

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Gibboryctes Endrödi, 1974 (Coleoptera: Scarabaeidae: Dynastinae: Oryctini) is an uncommon Neotropical genus comprising five valid species (Gasca-Álvarez Ratcliffe 2011; Dupuis 2019). Endrödi (1974) established the genus based on Gibboryctes szelenyii Endrödi, 1974 and defined it by the absence of sexual dimorphism; short, triangular, and pointed clypeus; bidentate mandibles projected beyond the anterior clypeal margin; and protibiae quadridentate. After that, Gibboryctes waldenfelsi (Endrödi, 1977) and Gibboryctes gracilicornis (Prell, 1912) were assigned to Gibboryctes, from Strategus Kirby, 1828 and Heterogomphus Burmeister, 1847, respectively (Ratcliffe Dechambre 1983; Dupuis Dechambre 2008). Gibboryctes bollei Dechambre, 2006 and Gibboryctes impunctatus Dupuis, 2019 were subsequently described.

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Two new species of Macraspis MacLeay are described and illustrated based on adult specimens collected in São Paulo and Paraná states, in southeastern and southern Brazil, respectively. Macraspis ironman sp. nov. and M. soulai sp. nov. are diagnosed and included in the preexisting identification key. A new chromatic variation of M. laevicollis (Waterhouse) is reported, along with a supplementary description including aedeagus and endophallus structures.

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Two new Podischnus Burmeister, 1847 species are described here: Podischnus limeirai sp. nov. from Gurupi region, Maranhão state, Brazil, the easternmost distribution of the genus; and Podischnus cleidecostae sp. nov. from the Acre state, Western of Brazilian Amazon Forest. New diagnostic characters are illustrated and discussed for the genus. An illustrated identification key for all Podischnus species, and an up-to-date distribution map for the Brazilian species of Podischnus are provided. Moreover, we propose the inclusion of P. limeirai sp. nov. in the Red List of Threatened Species (IUCN) due to the fast loss of the Oriental Amazon Forest remnant fragment in that region.

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Chlorota cleidecostae sp. nov. é descrita a partir de uma única fêmea coletada no estado do Maranhão, município de Carolina, na região do “Meio Norte”, biótopo formado pelos biomas Cerrado, Caatinga e Amazônia. A nova espécie se distingue de todas as outras espécies de Chlorota por ter o padrão elitral listrado com costelas vermelhas e a superfície do pronoto opaca, escura, metálica e lisa. Um mapa atualizado e uma chave para as espécies e subespécies que ocorrem no Brasil também são apresentados.

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Two new Podischnus Burmeister, 1847 species are described here: Podischnus limeirai sp. nov. from Gurupi region, Maranhão state, Brazil, the easternmost distribution of the genus; and Podischnus cleidecostae sp. nov. from the Acre state, Western of Brazilian Amazon Forest. New diagnostic characters are illustrated and discussed for the genus. An illustrated identification key for all Podischnus species, and an up-to-date distribution map for the Brazilian species of Podischnus are provided. Moreover, we propose the inclusion of P. limeirai sp. nov. in the Red List of Threatened Species (IUCN) due to the fast loss of the Oriental Amazon Forest remnant fragment in that region.(AU)

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Chlorota cleidecostae sp. nov. é descrita a partir de uma única fêmea coletada no estado do Maranhão, município de Carolina, na região do “Meio Norte”, biótopo formado pelos biomas Cerrado, Caatinga e Amazônia. A nova espécie se distingue de todas as outras espécies de Chlorota por ter o padrão elitral listrado com costelas vermelhas e a superfície do pronoto opaca, escura, metálica e lisa. Um mapa atualizado e uma chave para as espécies e subespécies que ocorrem no Brasil também são apresentados.(AU)

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Abstract Two new Podischnus Burmeister, 1847 species are described here: Podischnus limeirai sp. nov. from Gurupi region, Maranhão state, Brazil, the easternmost distribution of the genus; and Podischnus cleidecostae sp. nov. from the Acre state, Western of Brazilian Amazon Forest. New diagnostic characters are illustrated and discussed for the genus. An illustrated identification key for all Podischnus species, and an up-to-date distribution map for the Brazilian species of Podischnus are provided. Moreover, we propose the inclusion of P. limeirai sp. nov. in the Red List of Threatened Species (IUCN) due to the fast loss of the Oriental Amazon Forest remnant fragment in that region.

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Abstract Chlorota cleidecostae sp. nov. is described based on a unique female collected at Maranhão State, Carolina municipality, in the Meio Norte region, a biotope comprising Cerrado, Caatinga and Amazon biomes. The new species is distinguished from all other Chlorota species by having the striped elytral pattern with red costae, and surface of pronotum dull, dark, metallic, and smooth. An updated map and a key for species and subspecies that occur in Brazil are also presented.

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ABSTRACT Hexapods, commonly known as insects, are a neglected taxonomic group in the Fernando de Noronha archipelago, with unanswered questions about their species richness and the ecological processes in which they are involved (e.g., colonization, introduction, establishment, and extinction). Herein, we provide an updated Hexapod checklist with current nomenclatural combinations. The entomofauna of the Fernando de Noronha archipelago is currently composed of 453 species in 21 orders. The orders, and their respective number of species, are: Blattaria (9), Coleoptera (118), Collembola (29), Dermaptera (3), Diplura (1), Diptera (134), Embioptera (1), Hemiptera (29), Hymenoptera (59), Isoptera (2), Lepidoptera (25), Mantodea (1), Neuroptera (3), Odonata (5), Orthoptera (11), Phasmatodea (1), Phthiraptera (6), Psocoptera (3), Siphonaptera (1), Thysanoptera (10), and Zygentoma (2). The archipelago has 263 new taxon records (family + genera + species). Thirty-eight species (3.39%) were described from local specimens and most of them are likely endemic species. This study more than doubles our knowledge (from the previous 190 records) of the entomofauna in this large Brazilian archipelago. This study also provides a baseline for studies on its conservation status and for implementing future environmental management programs.

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In this contribution, Colacus rubrofemoratus Sobral, Morais, Grossi new species (Coleoptera: Scarabaeidae: Dynastinae: Agaocephalini) is described and illustrated based on male specimens found in a transitional area of Caatinga, Atlantic Forest, and Cerrado in Brazil. In addition, the female of Colacus morio Ohaus, 1910 is redescribed, a distribution map for the genus is provided, and a new key to the species of Colacus is presented.

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The third instar of Macraspis clavata (Olivier, 1789), collected in Rio Grande do Sul, Brazil, is described. Illustrations, comments on the natural history, and a key to third instar of Macraspis are also added.

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Seven new species of Trizogeniates Ohaus, 1917 (Coleoptera: Scarabaeidae: Rutelinae: Geniatini) from Brazil are described: Trizogeniates beckeri new species, T. curvatus new species, T. eliskae new species, T. hallensorum new species, T. spatulatus new species, T. vazdemelloi new species, and T. zuzanae new species. The male of T. eris Villatoro, 2002 is described for the first time. The diagnostic features of the seven new species and the male of T. eris are presented and compared with their congeners. Illustrations of specimens, mouthparts, and male genitalia of the new species and T. eris are also provided. Additionally, an identification key and an illustrated catalogue with the geographic distribution of the Brazilian species of Trizogeniates are presented. New Brazilian state records for 12 species are depicted: T. cribricollis (Lucas, 1859) from Pará, Mato Grosso do Sul, and Paraná; T. dispar (Burmeister, 1844) from Espírito Santo; T. eris from Rio de Janeiro; T. goyanus Ohaus, 1917 from Mato Grosso do Sul; T. laevis (Camerano, 1878) and T. montanus Ohaus, 1917 from Espírito Santo and Paraná; T. temporalis Ohaus, 1917 from Goiás; T. terricolus Ohaus, 1917 and T. vittatus (Lucas, 1859) from Paraná; and T. traubi Martínez, 1965 from Pará, Minas Gerais, and São Paulo. Finally, distributional maps for the Brazilian species are included.

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Esemephe peba sp. nov is described. This newly discovered species represents the first record of Cossyphodini from Brazil. It is also the second species of the genus Esemephe Steiner and differs from the type species in antennal, elytral and aedeagal structure. Descriptions of male and female terminalia are provided, as well as the revised diagnosis and distributional map for Esemephina. Finally, an updated identification key to the World genera of Cossyphodini is proposed.

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The previously unknown female of Spodochlamys marahuaca Jameson & Ratcliffe, 2011 is described and illustrated for the first time based on two specimens collected in the region of the Juruá River, Amazonas state, Brazil. The specimens constitute a new record for Brazil. The identification key for species of Spodochlamys is updated, as well as the geographic distribution of the other two Brazilian species, S. caesarea Burmeister and S. iheringi Ohaus. (AU)

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