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The Genus Spinopygina gen. nov. (Diptera, Sciaridae) from Western North America: Preliminary Molecular Phylogeny and Description of Seven New Species

SIMPLE SUMMARY: Black-winged fungus gnats (family Sciaridae) are one of the most species-rich groups of flies (Diptera), with about 3000 described species worldwide. Their taxonomy is notoriously challenging, as many genera are difficult to delimit and species identification relies almost exclusivel...

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Detalles Bibliográficos
Autores principales: Vilkamaa, Pekka, Burdíková, Nikola, Ševčík, Jan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9961837/
https://www.ncbi.nlm.nih.gov/pubmed/36835741
http://dx.doi.org/10.3390/insects14020173
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author Vilkamaa, Pekka
Burdíková, Nikola
Ševčík, Jan
author_facet Vilkamaa, Pekka
Burdíková, Nikola
Ševčík, Jan
author_sort Vilkamaa, Pekka
collection PubMed
description SIMPLE SUMMARY: Black-winged fungus gnats (family Sciaridae) are one of the most species-rich groups of flies (Diptera), with about 3000 described species worldwide. Their taxonomy is notoriously challenging, as many genera are difficult to delimit and species identification relies almost exclusively on the male genitalia. Existing phylogenetic hypotheses based on DNA sequences are often contradictory, presumably due to low taxon or gene sampling. In this paper, a new multigene phylogenetic analysis is presented to support the concept and monophyly of a new genus, containing eight species, seven of them being described as new to science. ABSTRACT: The genus Spinopygina gen. nov. (type species Camptochaeta uniceps Hippa & Vilkamaa, 1994) from western North America is described. The genus includes the following eight species: Spinopygina acerfalx sp. nov.; S. aurifera sp. nov.; S. camura sp. nov.; S. edura sp. nov.; S. peltata sp. nov.; S. plena sp. nov.; S. quadracantha sp. nov.; and S. uniceps (Hippa & Vilkamaa, 1994) comb. nov., transferred from Corynoptera Winnertz. The new species are described and Spinopygina uniceps is re-diagnosed. The species are keyed and illustrated. In the maximum-likelihood phylogenetic hypothesis based on four gene fragments (28S, 18S, 16S and COI), Spinopygina gen. nov. appears as the sister group of Claustropyga Hippa, Vilkamaa & Mohrig, 2003. In the same analysis, a remarkable, undescribed species is placed within Camptochaeta Hippa & Vilkamaa clade.
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spelling pubmed-99618372023-02-26 The Genus Spinopygina gen. nov. (Diptera, Sciaridae) from Western North America: Preliminary Molecular Phylogeny and Description of Seven New Species Vilkamaa, Pekka Burdíková, Nikola Ševčík, Jan Insects Article SIMPLE SUMMARY: Black-winged fungus gnats (family Sciaridae) are one of the most species-rich groups of flies (Diptera), with about 3000 described species worldwide. Their taxonomy is notoriously challenging, as many genera are difficult to delimit and species identification relies almost exclusively on the male genitalia. Existing phylogenetic hypotheses based on DNA sequences are often contradictory, presumably due to low taxon or gene sampling. In this paper, a new multigene phylogenetic analysis is presented to support the concept and monophyly of a new genus, containing eight species, seven of them being described as new to science. ABSTRACT: The genus Spinopygina gen. nov. (type species Camptochaeta uniceps Hippa & Vilkamaa, 1994) from western North America is described. The genus includes the following eight species: Spinopygina acerfalx sp. nov.; S. aurifera sp. nov.; S. camura sp. nov.; S. edura sp. nov.; S. peltata sp. nov.; S. plena sp. nov.; S. quadracantha sp. nov.; and S. uniceps (Hippa & Vilkamaa, 1994) comb. nov., transferred from Corynoptera Winnertz. The new species are described and Spinopygina uniceps is re-diagnosed. The species are keyed and illustrated. In the maximum-likelihood phylogenetic hypothesis based on four gene fragments (28S, 18S, 16S and COI), Spinopygina gen. nov. appears as the sister group of Claustropyga Hippa, Vilkamaa & Mohrig, 2003. In the same analysis, a remarkable, undescribed species is placed within Camptochaeta Hippa & Vilkamaa clade. MDPI 2023-02-09 /pmc/articles/PMC9961837/ /pubmed/36835741 http://dx.doi.org/10.3390/insects14020173 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Vilkamaa, Pekka
Burdíková, Nikola
Ševčík, Jan
The Genus Spinopygina gen. nov. (Diptera, Sciaridae) from Western North America: Preliminary Molecular Phylogeny and Description of Seven New Species
title The Genus Spinopygina gen. nov. (Diptera, Sciaridae) from Western North America: Preliminary Molecular Phylogeny and Description of Seven New Species
title_full The Genus Spinopygina gen. nov. (Diptera, Sciaridae) from Western North America: Preliminary Molecular Phylogeny and Description of Seven New Species
title_fullStr The Genus Spinopygina gen. nov. (Diptera, Sciaridae) from Western North America: Preliminary Molecular Phylogeny and Description of Seven New Species
title_full_unstemmed The Genus Spinopygina gen. nov. (Diptera, Sciaridae) from Western North America: Preliminary Molecular Phylogeny and Description of Seven New Species
title_short The Genus Spinopygina gen. nov. (Diptera, Sciaridae) from Western North America: Preliminary Molecular Phylogeny and Description of Seven New Species
title_sort genus spinopygina gen. nov. (diptera, sciaridae) from western north america: preliminary molecular phylogeny and description of seven new species
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9961837/
https://www.ncbi.nlm.nih.gov/pubmed/36835741
http://dx.doi.org/10.3390/insects14020173
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