Euura moerens (Förster, 1854)

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 : 94-95

publication ID	https://doi.org/10.5852/ejt.2025.977.2799
publication LSID	lsid:zoobank.org:pub:73DA044B-EB3D-4BF1-97EA-7430036DEEE0
persistent identifier	https://treatment.plazi.org/id/03BCA619-FF85-D84C-9756-F97AFEBDF804
treatment provided by	Plazi (2025-03-03 10:25:10, last updated by Julia 2025-03-13 14:33:04)
scientific name	Euura moerens (Förster, 1854)
status

Treatment

144 Euura moerens (Förster, 1854)

Figs 144, 381

Nematus moerens Förster, 1854a: 294–295 . Lectotype designated below.

Nematus pygostolus Förster, 1854b: 431–432 . Lectotype designated by Weiffenbach (1962). Synonymy by Weiffenbach (1962).

Nematus pleuralis Thomson, 1863: 628 . Lectotype designated below. Synonymy by Enslin (1916a).

Pachynematus pullus Konow, 1903a: 379 (key). Lectotype designated below. Synonymy by Lindqvist (1976).

Pachynematus falonus Ross, 1945: 108 (key). Holotype ♂ (INHS), not examined. Type locality: Canada, Alberta, Edmonton.

Pachynematus torridonensis Liston, 1980b: 52–53 . Synonymy by Liston (1995).

Diagnosis

Females are most similar to E. lichtwardti . Metatarsomere 1 and metafemur are usually extensively pale in E. moerens , but usually completely or nearly completely black E. lichtwardti . In males, the apical projection of tergum 8 is absent or indistinct unlike most other Euura (thus more like most Pristiphora ). Penis valves reliably separate E. moerens from the other species.

Type material examined

Lectotype Nematus moerens , here designated

GERMANY – Nordrhein-Westfalen • ♀; Aachen area ; 50.77° N, 6.09° E; ZSM, DEI-GISHym88919 . GoogleMaps

Notes

According to Taeger & Blank (1998) the lectotype was designated by Haris (1997), but no such designation was made.

Lectotype Nematus pygostolus

GERMANY – Nordrhein-Westfalen • ♂; Aachen area ; 50.77° N, 6.09° E; ZSM, DEI-GISHym12488 . GoogleMaps

Lectotype Nematus pleuralis , here designated

SWEDEN • ♀; Stockholm; 59.31° N, 18.04° E; C.H. Boheman leg.; NHRS, NHRS-HEVA000006326 . GoogleMaps

Lectotype Pachynematus pullus , here designated

FRANCE – Champagne-Ardenne • ♀; Charleville-Mézières ; 49.76° N, 4.72° E; 11 May 1895; SDEI, GBIF-GISHym3882 . GoogleMaps

Holotype Pachynematus torridonensis

UNITED KINGDOM – Scotland • Wester Ross, Coire MhicNobuil, near Allt Toll a’Mhaidaich ; 57.57° N, 5.56° W; 150 m a.s.l.; 16 May 1978; A.D. Liston leg.; RSME. GoogleMaps

Host plants

Calamagrostis arundinacea (L.) Roth ( Kangas 1985), Poa sp. and Festuca sp. ( Macek et al. 2020).

Genetics

COI

Based on 8 specimens, maximum within-species distance is 6.75% and the nearest neighbour, diverging by a minimum of 0.97%, is Euura clitellata .

Nuclear

Based on 7 specimens, maximum within-species distance is 0.23% (0.35% based on haplotypes of individual females). The nearest neighbour, diverging by a minimum of 1.38%, is Euura fallax .

Distribution and material examined

Holarctic. Specimens studied are from Finland, France, Germany, Norway, Sweden, and the United Kingdom.

References

Enslin E. 1916 a. Die Tenthredinoidea Mitteleuropas V. Deutsche Entomologische Zeitschrift [1916]: 413-538. https://doi.org/10.1002/mmnd.48019160401

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].

Haris A. 1997. Taxonoiai jegyzetek a sarga-buzadarazs (Pachynematus clitellatus Lepeletier) Fajrol (Hymenoptera, Tenthredinidae). Integralt termeszte a szantofoldi kulturakban 13: 111-121.

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

Konow F. W. 1903 a. Revision der Nematiden-Gattung Pachynematus Knw. (Hym.). Zeitschrift fur systematische Hymenopterologie und Dipterologie 3 (6): 377-383. Available from https://www.biodiversitylibrary.org/page/13746947 [accessed 20 Nov. 2024].

Lindqvist E. 1976. Bemerkungen uber einige Pachynematus - Arten (Hymenoptera, Tenthredinidae). Notulae Entomologicae 56: 15-20.

Liston A. D. 1980 b. Notes on some sawflies (Hym., Symphyta) found in Scotland with a description of a new species of Pachynematus Konow from Wester Ross. The Naturalist 105: 51-54.

Liston A. D. 1995. Compendium of European Sawflies: List of Species, Modern Nomenclature, Foodplants, Identification Literature. Chalastos Forestry, Gottfrieding.

Macek J., Roller L., Benes K., Holy K. & Holusa J. 2020. Blanokridli Ceske a Slovenske republiky II. Siropasi. Academia, Praha.

Ross H. H. 1945. A taxonomic outline of the Nearctic species of Pachynematus (Tenthredinidae, Hymenoptera). Proceedings of the Entomological Society of Washington 47 (5): 105-120.

Taeger A. & Blank S. M. 1998. Beitrag zur Kenntnis einiger Nematinae (Hymenoptera: Tenthredinidae). In: Taeger A. & Blank S. M. (eds) Pflanzenwespen Deutschlands (Hymenoptera, Symphyta). Kommentierte Bestandsaufnahme: 247-277. Goecke & Evers, Keltern.

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].

Weiffenbach H. 1962. Tenthredinidenstudien II. (Hym.). Mitteilungen der Munchner Entomologischen Gesellschaft 52: 123-145.