Euura vaga ( Fabricius, 1781 )

Prous, Marko, Liston, Andrew, Monckton, Spencer K., Kramp, Katja, Vårdal, Hege, Vikberg, Veli, Heibo, Erik & Mutanen, Marko, 2025, West Palaearctic species of Euura Newman, 1837 (Hymenoptera, Tenthredinidae), European Journal of Taxonomy 977, pp. 1-377 : 230-232

publication ID	https://doi.org/10.5852/ejt.2025.977.2799
publication LSID	lsid:zoobank.org:pub:73DA044B-EB3D-4BF1-97EA-7430036DEEE0
DOI	https://doi.org/10.5281/zenodo.15021201
persistent identifier	https://treatment.plazi.org/id/03BCA619-FF3D-D8F5-9741-FB28FCF8FC9F
treatment provided by	Plazi (2025-03-03 10:25:10, last updated 2025-03-20 21:31:02)
scientific name	Euura vaga ( Fabricius, 1781 )
status

Treatment

303 Euura vaga ( Fabricius, 1781)

Figs 146 View Figs 146–149 , 542 View Figs 534–545

Tenthredo vaga Fabricius, 1781: 415 . Syntypes (3 specimens in NHMD according to Zimsen 1964), sex not stated, not examined. Type locality: England.

Tenthredo flaviventris Gmelin, 1790: 2667 . Syntypes, sex not stated, not located. Type locality: Europe. Synonymy by Konow (1904c). Primary homonym of Tenthredo flaviventris Retzius, 1783 [ Neurotoma saltuum ( Linnaeus, 1758) ].

Nematus leucogaster Hartig, 1840: 23 . Lectotype designated below. Synonymy by Konow (1904c).

Nematus hypoleucus Förster, 1854a: 304–305 . Lectotype designated below. Synonymy by Konow (1904c).

Nematus micraulius Förster, 1854b: 428–429 . Lectotype designated below. Synonymy by Konow (1904c).

Nematus punctipleuris Thomson, 1863: 628 . Lectotype designated below. Synonymy by Konow (1904c).

Nematus punctulatus Thomson, 1863: 626–627 . Lectotype designated below. Synonymy by Konow (1904c).

Nematus inconspicuus W.F. Kirby, 1882: 141 . Holotype ♀ (BMNH?), not examined. Type locality: New York. Synonymy by Benson (1962).

Pachynematus corticosus MacGillivray, 1901: 584–585 . Holotype ♀ (INHS), not examined. Type locality: USA, New York, Saranac Inn.

Holcocneme ulbrichti Enslin, 1910: 316–317 . Holotype ♀, not found in ZSM. Type locality: Germany, Nordrhein-Westfalen, Krefeld. Synonymy by Enslin (1915).

Pachynematus roscidus MacGillivray, 1921b: 31 . Holotype ♀ (INHS), not examined. Type locality: USA, Maine, Orono.

Pachynematus rugosulus Lindqvist, 1959b: 71 . Syn. nov.

Diagnosis

The female is most similar to E. obducta from which it differs in usually having a completely pale metafemur (extensively black in E. obducta ), more triangular valvula 3 in dorsal view, and apically curved basal part of lamnium (more or less straight in E. obducta ). Males, which are extremely rare in Europe, are best recognised by their penis valves. Abdomen sometimes also dorsally nearly completely pale (terga 3–10) (ZMUO.062019). Pterostigma varies in European specimens from yellowish to dark brown, in North America often (usually?) black.

Type material examined

Lectotype Nematus leucogaster , here designated

GERMANY • ♀; northern Germany [according to Hartig 1840: 22]; ZSM, GBIF-GISHym3334 .

Lectotype Nematus hypoleucus , here designated

GERMANY – Nordrhein-Westfalen • ♀; Aachen area ; 50.77° N, 6.09° E; ZSM, GBIF-GISHym3297 . GoogleMaps

Lectotype Nematus micraulius , here designated

GERMANY – Nordrhein-Westfalen • ♂; Aachen area ; 50.77° N, 6.09° E; ZSM, GBIF-GISHym3352 . GoogleMaps

Notes

Penis valves lost, but identified by Conde as Pristiphora vaga .

Lectotype Nematus punctipleuris , here designated

SWEDEN • ♀; Norlandia [Lapland, probably Sweden]; MZLU, MZLU2017272 About MZLU .

Paralectotype Nematus punctipleuris

SWEDEN • ♀; Norlandia [Lapland, probably Sweden]; MZLU, MZLU2017273 About MZLU .

Lectotype Nematus punctulatus , here designated SWEDEN • ♀; Torne Lappmark ; MZLU, MZLU2017265 About MZLU

Paralectotypes Nematus punctulatus

SWEDEN • 2 ♀♀; Torne Lappmark ; MZLU, MZLU 2017266 About MZLU , MZLU 2017269 About MZLU • 2 ♀♀; [labels illegible]; MZLU, MZLU 2017267 About MZLU , MZLU 2017268 About MZLU .

Holotype Pachynematus rugosulus

NORWAY – Finnmark • ♀; Jotkajavrek ; 69.77° N, 23.85° E; Jul. 1924; Expedition A. Strand leg.; ZMUN, NHMO:1000201217 . GoogleMaps

Notes

Basal quarter to third of metafemur brown, mesepisternum matt. Best morphological match: ZMUO.041887.

Host plants

Carex spp. More than one generation per year in suitable conditions ( Lorenz & Kraus 1957; Kangas 1985).

Genetics

COI

Based on 29 specimens, maximum within-species distance is 3.5% and the nearest neighbour, diverging by a minimum of 6.26%, is Euura miliaris . Including 8 specimens from North America does not change the results.

Nuclear

Based on 8 specimens, maximum within-species distance is 0.61% (1.02% based on haplotypes of individual females). The nearest neighbour, diverging by a minimum of 2.93%, is Euura fuscomaculata . When a specimen from North America (DEI-GISHym15293) is included, maximum within-species distance is 0.8% (1.02% based on haplotypes of individual females).

Distribution and material examined

Holarctic. Specimens studied are from Canada, Estonia, Finland, France, Germany, Iceland, Norway, Russia, Slovakia, Sweden, United Kingdom, and the USA.

References

Benson R. B. 1962. Holarctic sawflies (Hymenoptera: Symphyta). Bulletin of the British Museum (Natural History). Entomology Series 12 (8): 379-409. https://doi.org/10.5962/bhl.part.5879

Enslin E. 1910. Eine neue Holcocneme aus Deutschland nebst einer Bestimmungstabelle der bisher bekannten Arten. (Hym.). Deutsche Entomologische Zeitschrift [1910] (3): 315-317. https://doi.org/10.1002/mmnd.4801910314

Enslin E. 1915. Die Tenthredinoidea Mitteleuropas IV. Deutsche Entomologische Zeitschrift [1915] (4): 311-412. https://doi.org/10.1002/mmnd.48019150702

Fabricius J. C. 1781. Species insectorum, exhibentes eorum differentias specificas, synonyma auctorum, loca natalia, metamorphosin, adjectis observationibus, descriptionibus. impensis C. E. Bohnii, Hamburg and Kiel [Hamburgi et Kilonii]. https://doi.org/10.5962/bhl.title.36509

Forster A. 1854 a. Neue Blattwespen. Verhandlungen des naturhistorischen Vereines der preussischen Rheinlande und Westfalens 1: 265-350. Available from https://www.biodiversitylibrary.org/page/60190587 [accessed 20 Nov. 2024].

Forster A. 1854 b. Neue Blattwespen. Verhandlungen des naturhistorischen Vereines der preussischen Rheinlande und Westfalens 1: 421-436. Available from https://www.biodiversitylibrary.org/page/60190757 [accessed 20 Nov. 2024].

Gmelin J. F. 1790. Caroli a Linne Systema Naturae. 13. ed., Vol. 1 (5). Beer, Leipzig. https://doi.org/10.5962/bhl.title.36932

Hartig T. 1840. Hymenopterologische Mittheilungen vom Forstrathe Dr. Th. Hartwig. Entomologische Zeitung 1 (2): 19-28. Available from https://www.biodiversitylibrary.org/page/34755058 [accessed 20 Nov. 2024].

Kangas J. K. 1985. Palkaneen Sahapistiaisfauna 1953 - 1983. Palkane- Seuran julkaisuja 5: 1-113.

Kirby W. F. 1882. List of Hymenoptera with Descriptions and Figs of the Typical Specimens in the British Museum. Vol. 1. Tenthredinidae and Siricidae. Taylor and Francis, London. https://doi.org/10.5962/bhl.title.60222

Konow F. W. 1904 c. Neue palaartische Chalastogastra. Zeitschrift fur systematische Hymenopterologie und Dipterologie 4 (4): 226-231. Available from https://www.biodiversitylibrary.org/page/13747230 [accessed 20 Nov. 2024].

Lindqvist E. 1959 b. Neue Blattwespen aus Fennoskandien (Hym., Tenthr.). Notulae Entomologicae 38 (3): 68-72.

Linnaeus C. 1758. Systema Naturae, per regna tria naturae secundum classes, ordines, genera, species cum characteribus, differentiis, synonymis, locis. Editio Decima, Reformata. Laurentius Salvius, Stockholm [Holmiae]. https://doi.org/10.5962/bhl.title.542

Lorenz H. & Kraus M. 1957. Die Larvalsystematik der Blattwespen (Tenthredinoidea und Megalodontoidea). Abhandlungen zur Larvalsystematik der Insekten 1: 1-339.

MacGillivray A. D. 1901. List and two new species of sawflies. Bulletin of the New York State Museum 47: 584-585.

MacGillivray A. D. 1921 b. New species of Nematinae - (Hymenoptera). Journal of the New York Entomological Society 29 (1): 27-35. Available from https://www.biodiversitylibrary.org/page/8188222 [accessed 20 Nov. 2024].

Retzius A. J. 1783. Caroli De Geer (...) Genera et species insectorum e generosissimi auctoris scriptis extraxit, digessit, latine quoad partem reddidit, et terminologiam insectorum Linneanam addidit. Siegfried Lebrecht Crusium, Leipzig [Lipsiae]. https://doi.org/10.5962/bhl.title.35661

Thomson C. G. 1863. Entomologiska bidrag. Ofversigt af Kongliga Vetenskaps-Akademiens forhandlingar 19 [1862]: 611-639. Available from https://www.biodiversitylibrary.org/page/15376419 [accessed 20 Nov. 2024].

Zimsen E. 1964. The Type Material of I. C. Fabricius. Munksgaard, Copenhagen.

Figures

Figs 146–149. Lancets of Euura Newman, 1837. 146. vaga (Fabricius, 1781) Prep.344.OR. 147. epilosa (Lindqvist, 1970), Pteronidea epilosa Lindqvist, 1970, holotype, ♀ https://id.luomus.fi/GL.5142. 148. epilosa DEI-GISHym80684. 149. fahraei (Thomson, 1863) PR.568VV.

Figs 534–545. Penis valves of Euura Newman, 1837 (534–543, 545) and Pristiphora Latreille, 1810 (544). 534. hyperborea (Thomson, 1871) DEI-GISHym31674. 535. imperfecta (Zaddach, 1876) ZMUO.030832. 536. itoi (Okutani, 1955) DEI-GISHym13850. 537. poecilonota (Zaddach, 1876) DEI- GISHym12527. 538. pumilio (Konow, 1903) DEI-GISHym31087. 539. salicis (Linnaeus, 1758) DEI- GISHym17954. 540. spiraeae (Zaddach, 1883) DEI-GISHym14075 (Switzerland). 541. spiraeae DEI- GISHym1916 (China). 542. vaga (Fabricius, 1781) DEI-GISHym13874. 543. telos Liston & Prous nom. nov. DEI-GISHym80794. 544. Pristiphora biscalis (Förster, 1854), Nematus meridionalis André, 1880, lectotype DEI-GISHym89376. 545. fagi Zaddach, 1876 DEI-GISHym13853.