The first stygobiont species of Coleoptera from Portugal, with a molecular phylogeny of the Siettitia group of genera (Dytiscidae, Hydroporinae, Hydroporini, Siettitiina)

Ignacio Ribera; Ana Sofia Reboleira

doi:10.3897/zookeys.813.29765

The first stygobiont species of Coleoptera from Portugal, with a molecular phylogeny of the Siettitia group of genera (Dytiscidae, Hydroporinae, Hydroporini, Siettitiina)

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Abstract

Iberoporus pluto sp. n., the first stygobiont beetle from Portugal (Dytiscidae, Hydroporinae), is described from a single female from the cave Soprador do Carvalho (Coimbra). The species is highly troglomorphic, depigmented, blind, and with elongated appendages not adapted for swimming. A molecular phylogeny based on a combination of three mitochondrial and two nuclear genes showed the new species to be sister to I. cermenius Castro & Delgado, 2001 from Córdoba (south of Spain), within the subtribe Siettitiina of the tribe Hydroporini. Both species are included in a clade with Siettitia avenionensis Guignot, 1925 (south of France) and Rhithrodytes agnus Foster, 1992 and R. argaensis Fery & Bilton, 1996 (north of Portugal), in turn sister to the rest of species of genus Rhithrodytes Bameul, 1989, in what is here considered the Siettitia group of genera. We resolve the paraphyly of Rhithrodytes by transferring the two Portuguese species to Iberoporus Castro & Delgado, 2001, I. agnus (Foster, 1992), comb. n. and I. argaensis (Fery & Bilton, 1996), comb. n.

Original language	English
Journal	ZooKeys
Volume	813
Pages (from-to)	21-38
ISSN	1313-2989
DOIs	https://doi.org/10.3897/zookeys.813.29765
Publication status	Published - 7 Jan 2019

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title = "The first stygobiont species of Coleoptera from Portugal, with a molecular phylogeny of the Siettitia group of genera (Dytiscidae, Hydroporinae, Hydroporini, Siettitiina)",

abstract = "Iberoporus pluto sp. n., the first stygobiont beetle from Portugal (Dytiscidae, Hydroporinae), is described from a single female from the cave Soprador do Carvalho (Coimbra). The species is highly troglomorphic, depigmented, blind, and with elongated appendages not adapted for swimming. A molecular phylogeny based on a combination of three mitochondrial and two nuclear genes showed the new species to be sister to I. cermenius Castro & Delgado, 2001 from C{\'o}rdoba (south of Spain), within the subtribe Siettitiina of the tribe Hydroporini. Both species are included in a clade with Siettitia avenionensis Guignot, 1925 (south of France) and Rhithrodytes agnus Foster, 1992 and R. argaensis Fery & Bilton, 1996 (north of Portugal), in turn sister to the rest of species of genus Rhithrodytes Bameul, 1989, in what is here considered the Siettitia group of genera. We resolve the paraphyly of Rhithrodytes by transferring the two Portuguese species to Iberoporus Castro & Delgado, 2001, I. agnus (Foster, 1992), comb. n. and I. argaensis (Fery & Bilton, 1996), comb. n.",

author = "Ignacio Ribera and Reboleira, {Ana Sofia}",

year = "2019",

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doi = "10.3897/zookeys.813.29765",

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T1 - The first stygobiont species of Coleoptera from Portugal, with a molecular phylogeny of the Siettitia group of genera (Dytiscidae, Hydroporinae, Hydroporini, Siettitiina)

AU - Ribera, Ignacio

AU - Reboleira, Ana Sofia

PY - 2019/1/7

Y1 - 2019/1/7

N2 - Iberoporus pluto sp. n., the first stygobiont beetle from Portugal (Dytiscidae, Hydroporinae), is described from a single female from the cave Soprador do Carvalho (Coimbra). The species is highly troglomorphic, depigmented, blind, and with elongated appendages not adapted for swimming. A molecular phylogeny based on a combination of three mitochondrial and two nuclear genes showed the new species to be sister to I. cermenius Castro & Delgado, 2001 from Córdoba (south of Spain), within the subtribe Siettitiina of the tribe Hydroporini. Both species are included in a clade with Siettitia avenionensis Guignot, 1925 (south of France) and Rhithrodytes agnus Foster, 1992 and R. argaensis Fery & Bilton, 1996 (north of Portugal), in turn sister to the rest of species of genus Rhithrodytes Bameul, 1989, in what is here considered the Siettitia group of genera. We resolve the paraphyly of Rhithrodytes by transferring the two Portuguese species to Iberoporus Castro & Delgado, 2001, I. agnus (Foster, 1992), comb. n. and I. argaensis (Fery & Bilton, 1996), comb. n.

AB - Iberoporus pluto sp. n., the first stygobiont beetle from Portugal (Dytiscidae, Hydroporinae), is described from a single female from the cave Soprador do Carvalho (Coimbra). The species is highly troglomorphic, depigmented, blind, and with elongated appendages not adapted for swimming. A molecular phylogeny based on a combination of three mitochondrial and two nuclear genes showed the new species to be sister to I. cermenius Castro & Delgado, 2001 from Córdoba (south of Spain), within the subtribe Siettitiina of the tribe Hydroporini. Both species are included in a clade with Siettitia avenionensis Guignot, 1925 (south of France) and Rhithrodytes agnus Foster, 1992 and R. argaensis Fery & Bilton, 1996 (north of Portugal), in turn sister to the rest of species of genus Rhithrodytes Bameul, 1989, in what is here considered the Siettitia group of genera. We resolve the paraphyly of Rhithrodytes by transferring the two Portuguese species to Iberoporus Castro & Delgado, 2001, I. agnus (Foster, 1992), comb. n. and I. argaensis (Fery & Bilton, 1996), comb. n.

U2 - 10.3897/zookeys.813.29765

DO - 10.3897/zookeys.813.29765

M3 - Journal article

C2 - 30647524

SN - 1313-2989

VL - 813

SP - 21

EP - 38

JO - ZooKeys

JF - ZooKeys

ER -

The first stygobiont species of Coleoptera from Portugal, with a molecular phylogeny of the Siettitia group of genera (Dytiscidae, Hydroporinae, Hydroporini, Siettitiina)

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