Euura leucotrocha ( Hartig, 1837 )

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 : 199-200

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.15021133
persistent identifier	https://treatment.plazi.org/id/03BCA619-FF1E-D8D5-9727-FE1CFAF9F9B0
treatment provided by	Plazi (2025-03-03 10:25:10, last updated 2025-03-20 21:31:02)
scientific name	Euura leucotrocha ( Hartig, 1837 )
status

Treatment

270 Euura leucotrocha ( Hartig, 1837)

Figs 215 View Figs 213–215 , 507 View Figs 506–519

Nematus leucotrochus Hartig, 1837: 193–194 . Lectotype designated below.

Nematus maculiventris Hartig, 1840: 25 . Type locality: northern Germany. No specimens located. Synonymy by Konow (1903b).

Nematus haemorrhoidalis Hartig, 1840: 26 . Lectotype designated by Haris (1997). Primary homonym of Nematus haemorrhoidalis Spinola, 1808 (= Nematus haemmorhoidalis Spinola, 1808 ). Syn. nov.

Nematus caudalis Eversmann, 1847: 16 . Lectotype designated below. Syn. nov.

Nematus approximatus Förster, 1854a: 320–321 . Lectotype designated by Viitasaari (1980). Synonymy by Konow (1903b).

Nematus consobrinus Snellen van Vollenhoven, 1871: 237–242 , pl, 10. Syntypes ♀ ♂, not located by Thomas (1987). Type locality: Netherlands, Haarlem. Synonymy by Konow (1899).

Nematus umbrinus Zaddach, 1876: 84–85 . Syntypes ♀ ♂, probably destroyed ( Blank & Taeger 1998). Type localities: Poland, Silesia and Gdansk [Danzig]; Russia, Kaliningrad [Königsberg]. Synonymy by Konow (1903b).

Nematus incertus W.F. Kirby, 1882: 107 . Replacement name for Nematus haemorrhoidalis Hartig, 1840 .

Nematus sauterianus Zaddach, 1883 in Brischke 1883 147, 153. Holotype ♀, probably destroyed ( Blank & Taeger 1998). Type locality: East Prussia. Synonymy by Konow (1903b).

Nematus multiplex Zaddach, 1883 in Brischke 1883: 188. Syntypes ♀♀ (MNHW), not examined. Type locality: Silesia. Synonymy by Konow (1903b).

Pteronidea cognata Lindqvist, 1958: 108–111 . Synonymy with approximatus by Lindqvist (1962a).

Diagnosis

Typically, the extensively pale head (including antenna), thorax, abdomen, and costa generally paler than pterostigma distinguish males and females from the others in the group. Smaller subapical tooth of claws compared to E. ribesii (subapical tooth broad and as long as apical tooth) and larger compared to E. gracilidentata additionally distinguishes E. leucotrocha females from these two species. Males of E. gracilidentata also tend to have a smaller subapical tooth (can be almost absent) than in E. leucotrocha , but also have a different colour pattern, with the black head and thorax contrasting with the yellow abdomen (in E. leucotrocha the colouration of head and thorax varies together with the abdomen, in a similar way, from mostly black to extensively pale). Males of most other species can be distinguished from E. leucotrocha by the shape of the projection of tergite 8 (see under E. ribesii ) and penis valves (see under E. ribesicola , E. similator , and E. vastatrix ). Darker specimens of E. leucotrocha might not be clearly distinguishable from E. quieta , but usually the clypeus seems to be more deeply excised in E. quieta than in E. leucotrocha .

The male type specimen of caudalis seems to fit better with leucotrocha (projection of tergite 8 broader, less emarginate clypeus) than ZMUO.029729 ( quieta ). Males can also be rather dark (ZMUO.036046): antenna black, head slightly pale around eyes (clypeus, labrum, lower orbits and slightly supraclypeal area pale), mesepisternum black, abdomen dorsally mostly black.

Type material examined

Lectotype Nematus leucotrochus , here designated

GERMANY – Niedersachsen • ♀; Harz ; 51.8° N, 10.3° E; W. Saxesen leg.; ZSM, GBIF-GISHym3338 . GoogleMaps

Paralectotype Nematus leucotrochus

GERMANY • 1 ♀; same data as for lectotype; NFVG, GBIF-GISHym4684 GoogleMaps .

Lectotype Nematus haemorrhoidalis

GERMANY • ♂; northern Germany [according to Hartig 1840: 22]; ZSM, DEI-GISHym12490 .

Lectotype Nematus caudalis , here designated

RUSSIA – Tatarstan • ♂; Kasan Province ; 55.8° N, 49.1° E; E. Eversmann leg.; ZIN, DEI-GISHym30028 . GoogleMaps

Lectotype Nematus approximatus

GERMANY – Nordrhein-Westfalen • ♀; Aachen area ; 50.77° N, 6.09° E; ZSM, GBIF-GISHym3203 . GoogleMaps

Holotype Pteronidea cognata

FINLAND – Uusimaa • ♀; Helsinki, Munksnäs [Munkkiniemi]; 60.22° N, 24.89° E; 2 Apr. 1955; E. Lindqvist leg.; MZH, http://id.luomus.fi/GL.2455. GoogleMaps

Host plants

Ribes spp. Possibly there are regional differences in preferences for host species: in Finland R. rubrum L. is preferred, whereas in Germany and the British Isles R. uva-crispa L. is the usual host ( Benson 1958a; Pschorn-Walcher & Altenhofer 2000). According to Viitasaari (1980) frequently also R. nigrum L., although this could refer to E. quieta even though Viitasaari (1980) separated this species from E. leucotrocha .

Genetics

COI

Based on 9 specimens, maximum within-species distance is 5.17% and the nearest neighbours, diverging by a minimum of 0.46%, are Euura quieta and E. gracilidentata .

Nuclear

Based on 10 specimens, maximum within-species distance is 0.86% (0.64% based on haplotypes of individual females). The nearest neighbour, diverging by a minimum of 0.5%, is Euura gracilidentata .

Distribution and material examined

Palaearctic. Specimens studied are from Finland, Germany, Russia, Sweden, and the United Kingdom.

References

Benson R. B. 1958 a. Hymenoptera, Symphyta. Handbooks for the Identification of British Insects 6 (2 c): 139-258.

Brischke C. G. A. 1883. Beobachtungen uber die Arten der Blatt- und Holzwespen von C. G. A. Brischke, Hauptlehrer a. D. in Langfuhr und Dr. Gustav Zaddach Professor in Konigsberg, mitgetheilt von Brischke aus Zaddach's Manuscripten. Schriften der physikalisch-okonomischen Gesellschaft zu Konigsberg 23: 127-200. Available from https://www.biodiversitylibrary.org/page/14731019 [accessed 20 Nov. 2024].

Eversmann E. 1847. Fauna hymenopterologica volgo-uralensis exhibens Hymenopterorum species quas in provinciis Volgam fluvium inter et montes Uralenses sitis observavit et nunc descripsit. Bulletin de la Societe imperiale des Naturalistes de Moscou 20 (1): 3-68. https://doi.org/10.5962/bhl.title.67704

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].

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

Hartig T. 1837. Die Aderflugler Deutschlands mit besonderer Berucksichtigung ihres Larvenzustandes und ihres Wirkens in Waldern und Garten fur Entomologen, Wald- und Gartenbesitzer. Die Familien der Blattwespen und Holzwespen nebst einer allgemeinen Einleitung zur Naturgeschichte der Hymenopteren. Haude und Spenersche Buchhandlung, Berlin.

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].

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. 1899. Neuer Beitrag zur Synonymie der Chalastogastra. Entomologische Nachrichten 25 (6): 86-96. Available from https://www.biodiversitylibrary.org/page/11423816 [accessed 20 Nov. 2024].

Konow F. W. 1903 b. Revision der Nematiden-Gattung Pteronus Jur. (Hym.). Zeitschrift fur systematische Hymenopterologie und Dipterologie 3 (5): 305-315. Available from https://www.biodiversitylibrary.org/page/13746871 [accessed 20 Nov. 2024].

Lindqvist E. 1958. Neue palaarktische Pteronidea - Arten (Hym., Tenthredinoidea). Notulae Entomologicae 37 (4): 92-117.

Lindqvist E. 1962 a. Bemerkungen uber palaarktische Blattwespen (Hym. Symph.). Notulae Entomologicae 42: 105-127.

Pschorn-Walcher H. & Altenhofer E. 2000. Langjahrige Larvenaufsammlungen und Zuchten von Pflanzenwespen (Hymenoptera, Symphyta) in Mitteleuropa. Linzer biologische Beitrage 32 (1): 273-327.

Spinola M. 1808. Insectorum liguriae species novae aut rariores, quas in agro Ligustico nuper detexit, descripsit, et iconibus illustravit Maximilianus Spinola, adjecto catalogo specierum auctoribus jam enumeratarum, quae in eadem regione passim occurrunt. Vol. 2 (2 - 4). Typis Yves Gravier, Genoa [Genuae]. https://doi.org/10.5962/bhl.title.65985

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.

Thomas P. L. L. 1987. An annotated catalogue of primary types of Symphyta (Hymenoptera) in the Netherlands. Zoologische Mededelingen 61 (5): 61-78.

Viitasaari M. 1980. Revision of the Pteronidea ribesii (Scopoli) species group (Hymenoptera, Tenthredinidae). Annales Entomologici Fennici 46 (2): 25-38.

Vollenhoven S. S. C. van 1871. De inlandsche bladwespen in hare gedaantewisseling en levenswijze beschreven. Tijdschrift voor Entomologie 14: 237-254. Available from https://www.biodiversitylibrary.org/page/10837455 [accessed 20 Nov. 2024].

Zaddach G. 1876. Beobachtungen uber die Arten der Blatt- und Holzwespen von C. G. A. Brischke Hauptlehrer in Danzig und Dr Gustav Zaddach, Professor in Konigsberg, mitgetheilt von Zaddach. Schriften der physikalisch-okonomischen Gesellschaft zu Konigsberg 16 [1875]: 23-89. Available from https://www.biodiversitylibrary.org/page/14740793 [accessed 20 Nov. 2024].

Figures

Figs 213–215. Lancets of Euura Newman, 1837. 213. pallescens group sp. DEI-GISHym80693. 214. gracilidentata (Viitasaari, 1980) DEI-GISHym12504. 215. leucotrocha (Hartig, 1837) DEI- GISHym17610.

Figs 506–519. Penis valves of Euura Newman, 1837. 506. gracilidentata (Viitasaari, 1980) DEI- GISHym80085. 507. leucotrocha (Hartig, 1837) ZMUO.030860. 508. quieta (Eversmann, 1847) ZMUO.032101. 509. ribesii (Scopoli, 1763) DEI-GISHym88577. 510. similator (Förster, 1854) DEI-GISHym88551. 511. ribesicola? (Lindqvist, 1949) DEI-GISHym86112. 512. insignis (Hartig, 1840) 170127-5. 513. scutellata (Hartig, 1837) DEI-GISHym80058. 514. nigerrima (Konow, 1903). Pachynematus nigerrimus Konow, 1903, lectotype GBIF-GISHym3883. 515. nigerrima, Nematus fumosus Lacourt, 1991,holotypeDEI-GISHym12672.516. notabilis(Konow, 1903) DEI-GISHym13871. 517. notabilis, Pteronus notabilis Konow, 1903, lectotype GBIF-GISHym3862. 518. putoni (Konow, 1903) DEI-GISHym16241. 519. vicina (Serville, 1823) DEI-GISHym88484.