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n2:391171

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Prous <i>et al.</i> (2021)

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2021-01-01

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Prous <i>et al.</i> (2021)

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_:vb70017466

dct:abstract

<jats:p>Eight Western Palaearctic <jats:italic>Euura</jats:italic> species are here assigned to the <jats:italic>bergmanni</jats:italic> group (<jats:italic>bergmanni</jats:italic>, <jats:italic>brevivalvis</jats:italic>, <jats:italic>dispar</jats:italic>, <jats:italic>glutinosae</jats:italic>, <jats:italic>leptocephalus</jats:italic>, <jats:italic>respondens</jats:italic>, <jats:italic>sylvestris</jats:italic>, and <jats:italic>viridis</jats:italic>) and two species to the <jats:italic>oligospila</jats:italic> group (<jats:italic>frenalis</jats:italic> and <jats:italic>oligospila</jats:italic>). <jats:italic>Euura pallens</jats:italic> (Konow, 1903) (<jats:italic>bergmanni</jats:italic> group) is removed from the list of West Palaearctic taxa. <jats:italic>Euura pyramidalis</jats:italic> (Hellén, 1948) is treated as <jats:italic>incertae sedis</jats:italic> within the <jats:italic>bergmanni</jats:italic> group. Definitions of the <jats:italic>bergmanni</jats:italic> and <jats:italic>oligospila</jats:italic> groups are primarily based on genetic sequence data (mitochondrial COI and nuclear NaK and POL2). We report likely occurrence of heteroplasmy and amplification of NUMTs among some of the treated species, complicating the use of DNA barcoding in species discrimination. Based on morphological and genetic evidence, we establish that the correct name for the invasive willow sawfly in the southern hemisphere (South America, southern Africa, Australia, New Zealand), known there only in the female sex, is <jats:italic>Euura respondens</jats:italic> (Förster, 1854). The species is probably native to the Palaearctic (or even Holarctic) where males are common: possibly as common as females (examined from Europe and Central Asia). The name <jats:italic>Euura oligospila</jats:italic> (Förster, 1854) has been incorrectly used for the species in the southern hemisphere. The examination of type material and reliable association of males and females based on genetics revealed that females of <jats:italic>E. oligospila</jats:italic> are morphologically extremely similar to <jats:italic>E. respondens</jats:italic> (and to some other <jats:italic>E. bergmanni</jats:italic> group species), but male penis valves and genetics enable reliable separation of these species. Morphological separation of females of <jats:italic>E. oligospila</jats:italic> and <jats:italic>E. respondens</jats:italic> is possible, but challenging. Identification keys for males and females of the <jats:italic>bergmanni</jats:italic> and <jats:italic>oligospila</jats:italic> groups are provided. The following 15 new synonymies are proposed: <jats:italic>Nematus validicornis</jats:italic> Förster, 1854, <jats:bold>syn. nov.</jats:bold> with <jats:italic>Euura bergmanni</jats:italic> (Dahlbom, 1835); <jats:italic>Pteronidea woollatti</jats:italic> Lindqvist, 1971, <jats:bold>syn. nov.</jats:bold> and <jats:italic>Nematus turgaiensis</jats:italic> Safjanov, 1977, <jats:bold>syn. nov.</jats:bold> with <jats:italic>Euura brevivalvis</jats:italic> (Thomson, 1871); <jats:italic>Pteronidea pseudodispar</jats:italic> Lindqvist, 1969, <jats:bold>syn. nov.</jats:bold> with <jats:italic>Euura dispar</jats:italic> (Zaddach, 1876); Nematus (Pteronidea) fastosus var. ponojense Hellén, 1948, <jats:bold>syn. nov.</jats:bold> and N. (P.) fastosus var. punctiscuta Hellén, 1948, <jats:bold>syn. nov.</jats:bold> with <jats:italic>Euura frenalis</jats:italic> (Thomson, 1888); <jats:italic>Nematus declaratus</jats:italic> Muche, 1974, <jats:bold>syn. nov.</jats:bold> and <jats:italic>N. desantisi</jats:italic> D.R. Smith, 1983, <jats:bold>syn. nov.</jats:bold> with <jats:italic>Euura respondens</jats:italic> (Förster, 1854); <jats:italic>Pteronidea straminea</jats:italic> Lindqvist, 1958, <jats:bold>syn. nov.</jats:bold>, <jats:italic>P. angustiserra</jats:italic> Lindqvist, 1969, <jats:bold>syn. nov.</jats:bold>, and <jats:italic>P. disparoides</jats:italic> Lindqvist, 1969, <jats:bold>syn. nov.</jats:bold> with <jats:italic>Euura sylvestris</jats:italic> (Cameron, 1884); <jats:italic>Pteronidea breviseta</jats:italic> Lindqvist, 1946, <jats:bold>syn. nov.</jats:bold>, <jats:italic>P. breviseta</jats:italic> Lindqvist, 1949, <jats:bold>syn. nov.</jats:bold>, <jats:italic>P. abscondita</jats:italic> Lindqvist, 1949, <jats:bold>syn. nov.</jats:bold>, and <jats:italic>P. lauroi</jats:italic> Lindqvist, 1960, <jats:bold>syn. nov.</jats:bold> with <jats:italic>Euura viridis</jats:italic> (Stephens, 1835). Lectotypes are designated for 18 nominal taxa: <jats:italic>Amauronematus longicornis</jats:italic> Konow, 1897; <jats:italic>A. spurcus</jats:italic> Konow, 1904; <jats:italic>Nematus bergmanni</jats:italic> Dahlbom, 1835; <jats:italic>N. brevivalvis</jats:italic> Thomson, 1871; <jats:italic>N. curtispina</jats:italic> Thomson, 1871; N. (Pteronidea) fastosus var. ponojense Hellén, 1948; N. (P.) fastosus var. punctiscuta Hellén, 1948; <jats:italic>N. glutinosae</jats:italic> Cameron, 1882; <jats:italic>N. microcercus</jats:italic> Thomson, 1871; <jats:italic>N. polyspilus</jats:italic> Förster, 1854; <jats:italic>N. prasinus</jats:italic> Hartig, 1837; <jats:italic>N. respondens</jats:italic> Förster, 1854; <jats:italic>N. salicivorus</jats:italic> Cameron, 1882; <jats:italic>N. validicornis</jats:italic> Förster, 1854; <jats:italic>N. virescens</jats:italic> Hartig, 1837; Pteronidea curtispina var. luctuosa Enslin, 1916; <jats:italic>Pteronus fastosus</jats:italic> Konow, 1904; and <jats:italic>P. pallens</jats:italic> Konow, 1903.</jats:p>

bibo:abstract

<jats:p>Eight Western Palaearctic <jats:italic>Euura</jats:italic> species are here assigned to the <jats:italic>bergmanni</jats:italic> group (<jats:italic>bergmanni</jats:italic>, <jats:italic>brevivalvis</jats:italic>, <jats:italic>dispar</jats:italic>, <jats:italic>glutinosae</jats:italic>, <jats:italic>leptocephalus</jats:italic>, <jats:italic>respondens</jats:italic>, <jats:italic>sylvestris</jats:italic>, and <jats:italic>viridis</jats:italic>) and two species to the <jats:italic>oligospila</jats:italic> group (<jats:italic>frenalis</jats:italic> and <jats:italic>oligospila</jats:italic>). <jats:italic>Euura pallens</jats:italic> (Konow, 1903) (<jats:italic>bergmanni</jats:italic> group) is removed from the list of West Palaearctic taxa. <jats:italic>Euura pyramidalis</jats:italic> (Hellén, 1948) is treated as <jats:italic>incertae sedis</jats:italic> within the <jats:italic>bergmanni</jats:italic> group. Definitions of the <jats:italic>bergmanni</jats:italic> and <jats:italic>oligospila</jats:italic> groups are primarily based on genetic sequence data (mitochondrial COI and nuclear NaK and POL2). We report likely occurrence of heteroplasmy and amplification of NUMTs among some of the treated species, complicating the use of DNA barcoding in species discrimination. Based on morphological and genetic evidence, we establish that the correct name for the invasive willow sawfly in the southern hemisphere (South America, southern Africa, Australia, New Zealand), known there only in the female sex, is <jats:italic>Euura respondens</jats:italic> (Förster, 1854). The species is probably native to the Palaearctic (or even Holarctic) where males are common: possibly as common as females (examined from Europe and Central Asia). The name <jats:italic>Euura oligospila</jats:italic> (Förster, 1854) has been incorrectly used for the species in the southern hemisphere. The examination of type material and reliable association of males and females based on genetics revealed that females of <jats:italic>E. oligospila</jats:italic> are morphologically extremely similar to <jats:italic>E. respondens</jats:italic> (and to some other <jats:italic>E. bergmanni</jats:italic> group species), but male penis valves and genetics enable reliable separation of these species. Morphological separation of females of <jats:italic>E. oligospila</jats:italic> and <jats:italic>E. respondens</jats:italic> is possible, but challenging. Identification keys for males and females of the <jats:italic>bergmanni</jats:italic> and <jats:italic>oligospila</jats:italic> groups are provided. The following 15 new synonymies are proposed: <jats:italic>Nematus validicornis</jats:italic> Förster, 1854, <jats:bold>syn. nov.</jats:bold> with <jats:italic>Euura bergmanni</jats:italic> (Dahlbom, 1835); <jats:italic>Pteronidea woollatti</jats:italic> Lindqvist, 1971, <jats:bold>syn. nov.</jats:bold> and <jats:italic>Nematus turgaiensis</jats:italic> Safjanov, 1977, <jats:bold>syn. nov.</jats:bold> with <jats:italic>Euura brevivalvis</jats:italic> (Thomson, 1871); <jats:italic>Pteronidea pseudodispar</jats:italic> Lindqvist, 1969, <jats:bold>syn. nov.</jats:bold> with <jats:italic>Euura dispar</jats:italic> (Zaddach, 1876); Nematus (Pteronidea) fastosus var. ponojense Hellén, 1948, <jats:bold>syn. nov.</jats:bold> and N. (P.) fastosus var. punctiscuta Hellén, 1948, <jats:bold>syn. nov.</jats:bold> with <jats:italic>Euura frenalis</jats:italic> (Thomson, 1888); <jats:italic>Nematus declaratus</jats:italic> Muche, 1974, <jats:bold>syn. nov.</jats:bold> and <jats:italic>N. desantisi</jats:italic> D.R. Smith, 1983, <jats:bold>syn. nov.</jats:bold> with <jats:italic>Euura respondens</jats:italic> (Förster, 1854); <jats:italic>Pteronidea straminea</jats:italic> Lindqvist, 1958, <jats:bold>syn. nov.</jats:bold>, <jats:italic>P. angustiserra</jats:italic> Lindqvist, 1969, <jats:bold>syn. nov.</jats:bold>, and <jats:italic>P. disparoides</jats:italic> Lindqvist, 1969, <jats:bold>syn. nov.</jats:bold> with <jats:italic>Euura sylvestris</jats:italic> (Cameron, 1884); <jats:italic>Pteronidea breviseta</jats:italic> Lindqvist, 1946, <jats:bold>syn. nov.</jats:bold>, <jats:italic>P. breviseta</jats:italic> Lindqvist, 1949, <jats:bold>syn. nov.</jats:bold>, <jats:italic>P. abscondita</jats:italic> Lindqvist, 1949, <jats:bold>syn. nov.</jats:bold>, and <jats:italic>P. lauroi</jats:italic> Lindqvist, 1960, <jats:bold>syn. nov.</jats:bold> with <jats:italic>Euura viridis</jats:italic> (Stephens, 1835). Lectotypes are designated for 18 nominal taxa: <jats:italic>Amauronematus longicornis</jats:italic> Konow, 1897; <jats:italic>A. spurcus</jats:italic> Konow, 1904; <jats:italic>Nematus bergmanni</jats:italic> Dahlbom, 1835; <jats:italic>N. brevivalvis</jats:italic> Thomson, 1871; <jats:italic>N. curtispina</jats:italic> Thomson, 1871; N. (Pteronidea) fastosus var. ponojense Hellén, 1948; N. (P.) fastosus var. punctiscuta Hellén, 1948; <jats:italic>N. glutinosae</jats:italic> Cameron, 1882; <jats:italic>N. microcercus</jats:italic> Thomson, 1871; <jats:italic>N. polyspilus</jats:italic> Förster, 1854; <jats:italic>N. prasinus</jats:italic> Hartig, 1837; <jats:italic>N. respondens</jats:italic> Förster, 1854; <jats:italic>N. salicivorus</jats:italic> Cameron, 1882; <jats:italic>N. validicornis</jats:italic> Förster, 1854; <jats:italic>N. virescens</jats:italic> Hartig, 1837; Pteronidea curtispina var. luctuosa Enslin, 1916; <jats:italic>Pteronus fastosus</jats:italic> Konow, 1904; and <jats:italic>P. pallens</jats:italic> Konow, 1903.</jats:p>

dct:issued

2021-01-01

dct:bibliographicCitation

Prous, M., Liston, A. &amp; Mutanen, M. 2021. Revision of the West Palaearctic <em>Euura bergmanni</em> and <em>oligospila </em>groups (Hymenoptera, Tenthredinidae). <em>Journal of Hymenoptera Research</em>, 84: 187-269.

bibo:doi

10.3897/jhr.84.68637

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n10:

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_:vb70017466

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n4:P356

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10.3897/jhr.84.68637