Euura leionota
Creators: name: Prous, Marko
name: Liston, Andrew
name: Monckton, Spencer K.
name: Kramp, Katja
name: Vårdal, Hege
name: Vikberg, Veli
name: Heibo, Erik
name: Mutanen, Marko
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Tenthredinidae
Euura
Euura leionota

description: 117 Euura leionota (Benson, 1933)
Fig. 112
Pteronidea leionota Benson, 1933: 259–260.
Pteronidea microserrata Lindqvist, 1941a: 68–69. Syn. nov.
Pteronidea nigrita Lindqvist, 1958: 113–114. Secondary homonym of Nematus nigritus Norton, 1861 (incertae sedis). Syn. nov.
Pteronidea clavicercus Lindqvist, 1958: 92–94. Syn. nov.
Pteronidea verticalis Lindqvist, 1958: 94. Syn. nov.
Nematus amaurus Vikberg, 1982. Replacement name for Pteronidea nigrita Lindqvist, 1958.
Diagnosis
Most similar to E. connecta: see differences mentioned under that species.
Female
5.0–7.0 mm. Head extensively to mostly pale; labrum, clypeus and supraclypeal area pale; flagellum black or ventrally pale; thorax dorsally extensively pale (sometimes black?), ventrally extensively or nearly completely pale; pterostigma uniformly pale, brown, or with dark margins; abdomen dorsally mostly black, ventrally completely pale; metafemur and metatibia pale; hind tarsus pale or brown; mesepisternum smooth; claws bifid; valvula 3 in dorsal view with blunt tip.
Male
Not known for certain.
Type material examined
Holotype Pteronidea leionota
UNITED KINGDOM – England • ♀; Devon, Great Haldons; 50.63° N, 3.57° W; Apr. 1926; R.C.L. Perkins leg.; BMNH, B.M.TYPEHYM.1.634.
Notes
22 serrulae.
Holotype Pteronidea microserrata
FINLAND – Uusimaa • ♀; Kirkkonummi; 60.126° N, 24.439° E; R. Frey leg.; MZH, http://id.luomus. fi/GL.9221.
Notes
21 serrulae.
Holotype Pteronidea nigrita
SWEDEN – Torne Lappmark • ♀; Abisko; 68.35° N, 18.83° E; 25–30 Jun. 1954; J.E. and R.B. Benson leg.; BMNH, B.M.TYPEHYM.1.784.
Notes
20–21 serrulae; 6 mm.
Holotype Pteronidea clavicercus
FINLAND – Häme • ♀; Pirkkala; 61.466° N, 23.642° E; 13 Jun. 1935; T. Grönblom leg.; MZH, PR.558VV.
Notes
21 serrulae. Best morphological match: DEI-GISHym12042 (22 serrulae).
Holotype Pteronidea verticalis
FINLAND – Satakunta • ♀; Björneborg [Pori]; 61.49° N, 21.81° E; 17 May 1935; E. Lindqvist leg.; MZH, PR.557VV.
Notes
23 serrulae. Best morphological match: DEI-GISHym12042 (22 serrulae).
Host plants
Betula pendula Roth and B. pubescens.
Genetics
COI
Based on 7 specimens, maximum within-species distance is 0.31% and the nearest neighbour, diverging by a minimum of 1.37%, is Euura sordidiapex.
Nuclear
Based on 6 specimens, maximum within-species distance is 0.16% (0.14% based on haplotypes of individual females). The nearest neighbour, diverging by a minimum of 0.31%, is Euura leucopyga.
Distribution and material examined
Palaearctic. Specimens studied are from Finland, Norway, Slovakia, Sweden, and the United Kingdom.
description: Published as part of 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), pp. 1-377 in European Journal of Taxonomy 977 on pages 61-62, DOI: 10.5852/ejt.2025.977.2799, http://zenodo.org/record/15019574