234 Euura humeralis (Serville, 1823)

Figs 254, 493

Nematus humeralis Serville, 1823: 68 . No types found in MNHN (Lacourt 2000). Type locality: France, Soissonnais.

Nematus incanus Förster, 1854a: 302–304 . Lectotype designated below. Synonymy by Konow (1895).

Diagnosis

Very similar to E. aceroserra, see differences discussed under that species.

Type material examined

Lectotype Nematus incanus, here designated

GERMANY – Nordrhein-Westfalen • ♀; Aachen area; 50.77° N, 6.09° E; ZSM, GBIF-GISHym3050.

Host plants

Salix spp. such as S. aurita (Kontuniemi 1960), S. caprea (Kangas 1985), S. cinerea (Benander 1966), S. starkeana Willd.

Genetics

COI

Based on 10 specimens, maximum within-species distance is 2.45% and the nearest neighbours, diverging by a minimum of 0.61%, are Euura aceroserra and E. telos .

Nuclear

Based on 6 specimens, maximum within-species distance is 0.54% (0.56% based on haplotypes of individual females). The nearest neighbour, diverging by a minimum of 0.41%, is Euura aceroserra .

Distribution and material examined

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