Euura fahraei ( Thomson, 1863 )

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 : 98-99

150 Euura fahraei ( Thomson, 1863)

Figs 149 , 383

Nematus fahraei Thomson, 1863: 637 [mandatory correction of original spelling fåhraei ]. Lectotype designated below.

Nematus melanodus Zaddach, 1884 in Brischke 1884: 133. Holotype ♂, probably destroyed ( Blank & Taeger 1998). Type locality: Prussia? [leg. Andersch]. Synonymy by Konow (1895).

Pteronidea brunnea Lindqvist, 1971b: 11 . Secondary homonym of Nematus brunneus Norton, 1864 [= Euura brunnea ( Norton, 1864) ]. Syn. nov.

Nematus brunnescens Vikberg, 1982: 63 . Replacement name for Pteronidea brunnea Lindqvist, 1971 .

Diagnosis

Its almost completely yellowish body and the structure of the lancet (apical sutures concave and overall inclined in basal direction, serrulae flat, setae present) enable identification of the females. Ventrally extensively pale body and shape of the penis valves enable reliable identification also of males.

Type material examined

Lectotype Nematus fåhraei , here designated

SWEDEN – Skåne • ♀; Ringsjön; 55.88° N, 13.51° E; C.G. Thomson leg.; MZLU, MZLU2017305 .

Holotype Pteronidea brunnea

FINLAND – Uusimaa • ♀; Espoo, Vantaa ; 60.25° N, 24.90° E; 27 May 1967; V.J. Karvonen leg.; MZH, http://id.luomus.fi/GL.3466.

Host plants

Populus tremula .

Genetics

COI

Based on 5 specimens, maximum within-species distance is 0.61% and the nearest neighbour, diverging by a minimum of 6.72%, is Euura bicolor (not known in the West Palaearctic).

Nuclear

Based on 2 specimens, maximum within-species distance is 0.05%. The nearest neighbour, diverging by a minimum of 1.46%, is Euura bicolor .

Distribution and material examined

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

Figures

Figs 146–149. Lancets of Euura Newman, 1837. 146. vaga (Fabricius, 1781) Prep.344.OR. 147. epilosa (Lindqvist, 1970), Pteronidea epilosa Lindqvist, 1970, holotype, ♀ https://id.luomus.fi/GL.5142. 148. epilosa DEI-GISHym80684. 149. fahraei (Thomson, 1863) PR.568VV.

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.