301 Euura salicis (Linnaeus, 1758)

Figs 310, 539

Tenthredo salicis Linnaeus, 1758: 557 . Syntypes, sex not stated. No extant type material is known. Type locality: Sweden.

Tenthredo capreae Linnaeus, 1758: 559 . Syntype larvae. Adults were not described. No extant type material is known. Type locality: Sweden. Synonymy by Schmidt et al. (1998).

Tenthredo notata O.F. Müller, 1776: 149 . Syntypes, sex not stated. No extant type material is known. Type locality: Denmark. Synonymy by Brischke (1883).

Nematus klugi Dahlbom, 1835a: pl. 40 fig. 6. Syntypes ♂♂ (MZLU), not examined. Type locality: Scandinavia. Synonymy by Brischke (1883) [confirmed by Schmidt et al. (1998)].

Nematus immaculatus Snellen van Vollenhoven, 1869: 95, 119. Lectotype ♂ (ZMAN), designated by Thomas (1987), not examined. Type locality: Belgium, Schoten. Synonymy by Brischke (1883).

Nematus inflatus Thomson, 1871: 139–140 . Lectotype designated below. Synonymy by Brischke (1883).

Pteronidea salicis var. obscurior Enslin, 1916a: 415 . Lectotype designated below. Synonymy by Muche (1974).

Diagnosis

Its large size (8.0–12.0 mm), extensively yellow body, and black costa and pterostigma enable its separation from other species of Euura .

Type material examined

Lectotype Nematus inflatus, here designated

SWEDEN – Skåne • ♀; Lund; 55.71° N, 13.19° E; MZLU, MZLU2017309.

Lectotype Pteronidea salicis var. obscurior, here designated

GERMANY – Nordrhein-Westfalen • ♀; Solingen; 51.17° N, 7.07° E; ZSM, GBIF-GISHym3369 .

Paralectotype Pteronidea salicis var. obscurior

GERMANY – Nordrhein-Westfalen • ♂; Solingen; 51.17° N, 7.07° E; ZSM, GBIF-GISHym3370 .

Host plants

Salix spp., preferably S. fragilis (Roininen & Tahvanainen 1989), occasionally Populus (Çalmasur & Özbek 2006) . More than one generation per year in suitable conditions (Pschorn-Walcher & Altenhofer 2000).

Genetics

COI

Based on 5 specimens, maximum within-species distance is 0.78% and the nearest neighbour, diverging by a minimum of 5.32%, is Euura ferruginea .

Nuclear

Only one sequence available. The nearest neighbour, diverging by a minimum of 2.28%, is Euura anthracina .

Distribution and material examined

Palaearctic. Specimens studied are from Finland, France, Germany, and Sweden.