Spanglerelmis, a new genus of Elmidae (Insecta: Coleoptera) from Brazil with new species and biological notes

  • Thiago Tadeu Silva Polizei Laboratório de Coleoptera (LaC), Museu de Zoologia da Universidade de São Paulo (MZSP), Avenida Nazaré, 481, Ipiranga, 04263-000, São Paulo, SP, Brazil https://orcid.org/0000-0003-3746-8865
  • Lucas de Souza Machado Costa Escola Técnica Estadual de Itanhaém. Avenida José Batista Campos, 1431, Anchieta, 11740-000, Itanhaém, SP, Brazil https://orcid.org/0000-0002-7104-4508
  • Pitágoras da Conceição Bispo Laboratório de Biologia Aquática, Departamento de Ciências Biológicas, Faculdade de Ciências e Letras de Assis, Universidade Estadual Paulista (UNESP), Avenida Dom Antônio, 2100, Parque Universitário, 19806-900, Assis, SP, Brazil https://orcid.org/0000-0002-7356-8882
DOI: https://doi.org/10.5852/ejt.2022.813.1731
Keywords: Aquatic beetles, riffle beetles, Neotropical, South America, new species, new genus

Abstract

In this study, the new genus Spanglerelmis Polizei & Bispo is described; Microcylloepus ochus Hinton, 1940 is synonymized with Microcylloepus femoralis Hinton, 1940, and transferred to the new genus; and two new species, S. xiririca gen. et sp. nov. and S. timburi gen. et sp. nov. are described. The new genus can be characterized by the combination of the following characters: 1) pronotum without transverse, longitudinal or oblique impressions, sulci or gibbosities on disc; 2) elytra with a carina on interval III and two sublateral carinae on intervals V and VI; 3) mesoventrite with sides strongly raised; and 4) femora with an oblique belt of tomentum dorsally and a transverse belt ventrally. The specimens of the two new species were collected mainly in riffles of unimpacted streams in the Atlantic Forest in São Paulo State, Brazil. Scanning electron microscope images, an identification key for the genus and habitat notes are also presented.

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Published
2022-04-12
How to Cite
Polizei, T. T. S., Costa, L. de S. M., & Bispo, P. da C. (2022). Spanglerelmis, a new genus of Elmidae (Insecta: Coleoptera) from Brazil with new species and biological notes. European Journal of Taxonomy, 813(1), 33-56. https://doi.org/10.5852/ejt.2022.813.1731
Issue
Vol. 813 (2022)
Section
Research article

Copyright (c) 2022 Thiago Tadeu Silva Polizei, Lucas de Souza Machado Costa, Pitágoras da Conceição Bispo

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