Euura squamicauda ( Vikberg, 1982 )

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 : 112

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.15020918
persistent identifier	https://treatment.plazi.org/id/03BCA619-FFB7-D87D-9735-FEEFFB8DFAF6
treatment provided by	Plazi (2025-03-03 10:25:10, last updated 2025-03-20 21:31:02)
scientific name	Euura squamicauda ( Vikberg, 1982 )
status

Treatment

164 Euura squamicauda ( Vikberg, 1982)

Figs 167 View Figs 166–169 , 392 View Figs 380–393

Pteronidea caudalis Lindqvist, 1968: 194 . Secondary homonym of Nematus caudalis Eversmann, 1847 [= Euura leucotrocha ( Hartig, 1837) ].

Nematus squamicauda Vikberg, 1982: 63 . Replacement name for Pteronidea caudalis Lindqvist, 1968 .

Diagnosis

Females (5.5–6.5 mm) are externally very similar to darker specimens of E. lienterica and many species in the bipartita group, but valvula 3 is orientated distinctly dorsally. Separation of males from darker specimens of the other flavescens group species is not clear. Contrary to the original description, the pterostigma is hardly bicolored.

Type material examined

Holotype Pteronidea caudalis

SWEDEN – Torne Lappmark • ♀; Torneträsk; 68.22° N, 19.74° E; 400 m a.s.l.; R. Malaise leg.; NHRS, NHRS-HEVA000003965 . GoogleMaps

Host plants

Salix lanata L. based on three females (two of them sequenced) ovipositing in the male catkins. A sequenced larva (ZMUO.042092) was collected from Salix sp. where S. lanata was present.

Genetics

COI

Based on 5 specimens, maximum within-species distance is 0.15% and the nearest neighbour, diverging by a minimum of 5.47%, is Euura dorsata .

Nuclear

Based on 5 specimens, maximum within-species distance is 0.13% (0.2% based on haplotypes of individual females). The nearest neighbour, diverging by a minimum of 1.65%, is Euura reticulata .

Distribution and material examined

Palaearctic. Specimens studied are from Finland, Norway, and Sweden.

References

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

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.

Lindqvist E. 1968. Vier neue Blattwespen aus Schweden. (Hym., Symphyta). Entomologisk Tidskrift 89 (3 - 4): 192-196.

Vikberg V. 1982. Notes on the taxonomy and the nomenclature of some mainly Fennoscandian sawflies (Hymenoptera, Symphyta). Notulae Entomologicae 62 (2): 61-65.

Figures

Figs 166–169. Lancets of Euura Newman, 1837. 166. flavescens (Stephens, 1835) DEI-GISHym21336. 167. squamicauda (Vikberg, 1982) 201172_QJB. 168. amerinae (Linnaeus, 1758) DEI-GISHym31742. 169. atra (Jurine, 1807) DEI-GISHym31744.

Figs 380–393. Penis valves of Euura Newman, 1837. 380. lichtwardti (Konow, 1903) DEI- GISHym84256. 381. moerens (Förster, 1854) DEI-GISHym84252. 382. obducta (Hartig, 1837) DEI- GISHym84481. 383. fahraei (Thomson, 1863) http://id.luomus.fi/GL.3496. 384. tenuiserra (Lindqvist, 1944) DEI-GISHym80664. 385. dorsata (Cameron, 1875) ZMUO.031338. 386. flavescens (Stephens, 1835) DEI-GISHym84191. 387. latibasis (Lindqvist, 1949) ZMUO.035676. 388. lienterica (Holmgren, 1883) DEI-GISHym88729. 389. pravus (Konow, 1895) ZMUO.031418. 390. reticulata (Holmgren, 1883) DEI-GISHym88880. 391. seriepunctata (Malaise, 1921) ZMUO.035721. 392. squamicauda (Vikberg, 1982) 210004_VMZ. 393. serela Prous & Mutanen sp. nov., paratype ZMUO.028330.