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A new species with high sexual dimorphism of Xenelmis Hinton (Coleoptera: Elmidae) from Mount Roraima National Park, Brazil

André S. FERNANDES et al · Instituto Nacional de Pesquisas da Amazônia · 2023

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Author / responsible party
André S. FERNANDES et al
Publisher
Instituto Nacional de Pesquisas da Amazônia
Year
2023
ISSN
0044-5967
ISSN
0044-5967
Language
English
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"Pinta" em população nativa do Estado do Amazonas

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ABSTRACT Xenelmis is one of the 51 Neotropical genera of the aquatic beetle family Elmidae and is currently represented by 15 species distributed throughout the Neotropics. This genus of tiny beetles is especially well represented in South America, where all but one species can be found, and Brazil has the greatest richness, with ten species recorded so far. Here we describe and illustrate Xenelmis tuchaua sp. nov., a new Elmidae species with remarkable sexual dimorphism and unique diagnostic characteristics. The new species was found in an Amazonian stream located in Mount Roraima National Park, Roraima state, Brazil. We provide an updated species list for Xenelmis with comments on the occurrence of sexual dimorphism in the genus.

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APA 7

al, A. S. F. E. (2023). A new species with high sexual dimorphism of Xenelmis Hinton (Coleoptera: Elmidae) from Mount Roraima National Park, Brazil. https://doi.org/10.1590/1809-4392202300181

MLA

al, André S. FERNANDES et. "A new species with high sexual dimorphism of Xenelmis Hinton (Coleoptera: Elmidae) from Mount Roraima National Park, Brazil." 2023. https://doi.org/10.1590/1809-4392202300181.

Chicago

al, André S. FERNANDES et. 2023. "A new species with high sexual dimorphism of Xenelmis Hinton (Coleoptera: Elmidae) from Mount Roraima National Park, Brazil.". https://doi.org/10.1590/1809-4392202300181.

Harvard

al, A. S. F. E. 2023, A new species with high sexual dimorphism of Xenelmis Hinton (Coleoptera: Elmidae) from Mount Roraima National Park, Brazil, Instituto Nacional de Pesquisas da Amazônia, available at: https://doi.org/10.1590/1809-4392202300181 [Accessed 5 Aug. 2026].

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Title
A new species with high sexual dimorphism of Xenelmis Hinton (Coleoptera: Elmidae) from Mount Roraima National Park, Brazil
Author / contributors
André S. FERNANDES et al
Publisher
Instituto Nacional de Pesquisas da Amazônia
Publication year
2023
ISSN
0044-5967
ISSN
0044-5967
Language
English

Subjects

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aquatic insects; morphology; riffle beetles; sexual dimorphism; taxonomy
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