Euura vesicator (Bremi-Wolf 1849)
- Dataset
- North European gall-inducing Euura sawflies (Hymenoptera, Tenthredinidae, Nematinae)
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Insecta
- order
- Hymenoptera
- family
- Tenthredinidae
- genus
- Euura
- species
- Euura vesicator
description
Eupontania vesicator: Vikberg & Zinovjev (2006). Euura vesicator: Prous et al. (2014).
description
N. leptocerus. The lectotype and two female paralectotypes were labelled as such by J. - P. Kopelke, but the designation was never published. Lectotype, ♀, hereby designated, ZSM; labels " Cotype " [red, printed], " [illegible] ", " Nematus leptocerus Frst. A. Förster det. ♀ ", " Pontania ♀ vesicator Bremi Konow. det. ", " Nematus vesicator Br. O. Conde det. 1932 ", " Pontania ♀ vesicator (Bremi) Kopelke det. 1990 ", " Lectotypus N. leptocerus För. det. Kopelke " [red], " GBIF-GISHym 3332 ". Paralectotypes, ♀: labelling similar, but " GBIF-GISHym 21293 " and " GBIF-GISHym 21294 ", ZSM. Variability. Female: Body length: 3.0 – 6.2 mm. Male: 3.6 – 5.6 mm. Both Zaddach (in Brischke 1883 a) and Saarinen (1945) described individuals obtained by rearing, that were not only significantly smaller than normally sized ones, but also very much darker. This variability does not form a continuum. Female: the very small specimens have the pronotum only narrowly margined with pale (normally largely pale) and the abdomen except for terga 9 – 10 completely black (normally all sterna and terga (1 –) 3 – 10 entirely pale). Furthermore, the normally completely pale femora are partly infuscate in the dwarf individuals. Male: small individuals do not differ from larger ones so strongly as in the female. The femora are more extensively black and sternum 9 can be black instead of the normal pale. Total number of specimens examined: 37. Genetic data. The nearest neighbouring barcode of a European taxon is that of E. pustulator, with approx. 3.8 % difference. Bionomics. Host plants: Salix purpurea (Kopelke 1999), S. × superpurpurea (Beneš 2015 a). Biology: Kopelke (1985), Magnus (1914), Niklas (1955), Staeger (1919). Normally bivoltine (Niklas 1955), even in southern Finland, in some years (Vikberg & Zinovjev 2006).
distribution
Distribution. South, Central and North Europe north to Finland (Helsinki, on planted S. purpurea: Saarinen 1945),? Caucasus (Zhelochovtsev & Zinovjev 1995), Yakutia (Popov 2011). Occurrence in Sweden: published records; Skåne (Benander 1966), Halland (Andersson 1955), Västergötland (Coulianos & Holmåsen 1991). Material examined: Skåne.