Euura hastatae Malaise, 1921

Liston, Andrew D., Heibo, Erik, Prous, Marko, Vårdal, Hege, Nyman, Tommi & Vikberg, Veli, 2017, North European gall-inducing Euura sawflies (Hymenoptera, Tenthredinidae, Nematinae), Zootaxa 4302 (1), pp. 1-115 : 61

Euura hastatae Malaise, 1921

Euura lappo var. hastatae Malaise, 1921: 108 –109. Described: ♀, ♂, larva, gall, recorded host: Salix hastata . Lectotype, designated below. Type locality: Sweden, Torne Träsk area . Kopelke (2001) referred in error to the existence of a holotype. Euura (Gemmura) hastatae: Kopelke (1999) .

Notes on types and taxonomy. E. lappo var. hastatae . Lectotype, ♀, hereby designated, NHRS; labels "78", "Torne Tr. Malaise", " Euura lappo var. hastatae ", "Paratypus" [red], " Euura saliceti Fall. O. Conde det. 1937", " Euura mucronata Hartig det. V. Vikberg", " Euura hastatae Mal. Kopelke det. 1999", "NHRS-HEVA000003485", "Lectotype ♀ Euura lappo var. hastatae Malaise, 1921 des. A. Liston 2016" [red], "DEI-GISHym21295". Paralectotypes: 1♀ ("DEI-GISHym21296", "NHRS-HEVA000003487"), 2♂ ("DEI-GISHym21297", "NHRS- HEVA000003486" & "..21298", "NHRS-HEVA000003488"), other labels similar to lectotype, NHRS. Kopelke (2001) referred in error to the existence of a holotype. The original description refers to a type series of 6♀ and 3♂. The whereabouts of the missing specimens are unknown.

Variability. Female: Body length: 3.5–4.2mm. Male: 3.0– 4.5mm. Lower inner orbits pale to completely black. Female and male: Tegula pale to black. Total number of specimens examined: 11.

Genetic data. E. hastatae cannot be identified using COI sequences, but appears to be distinct based on nuclear ITS2 sequences (Leppänen et al. 2014).

Similar species. Female not distinguishable from others in this subgroup, using external morphological characters, except laeta , lanatae , and subgemma .

Bionomics. Host plants: Salix hastata (Malaise 1921) . Biology: Kopelke (2001).

Distribution. Central Europe (Alps, Carpathians) ( Kopelke 2001, Beneš 2014) and North Europe, north to N. Finnmark in Norway ( Kopelke 2001). Occurrence in Sweden: published records: Torne Lappmark, Torne Träsk area (Malaise 1921, Kopelke 2001). Material examined: Torne Lappmark.