Euura crassipes (Thomson 1871) : Prous et al. 2014
- 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 crassipes
description
Genetic data. Sequences of mtDNA of E. herbaceae are nearly identical to those of E. crassipes (Nyman et al. 2007). Similar species. See above, under E. crassipes. Bionomics. Host plants: Salix herbacea (Cameron 1876 c), S. polaris, and hybrids of these (Vikberg 2003, Malaise 1921 a). Biology: Kopelke (1989 b), Vikberg (2003).
description
Nematus (Pontania) herbaceae: Zholochovtsev (1988).
description
Variability. Female: Body length: 2.7 – 5.4 mm. Pronotum with posterior margins pale lined, to entirely black. Supraclypeal area, upper outer orbits and lateral vertex brown, to black. Male: 2.8 – 4.8 mm. Female and male: femora extensively pale, to nearly completely black. Total number of specimens examined: 10. Genetic data. Sequences of mtDNA and nuclear of E. crassipes are nearly identical to E. herbaceae (see also Nyman et al. 2007). Similar species. Morphologically very similar to E. herbaceae. Determination of some smaller female specimens is not always possible, if the number of serrulae lies in the range of overlap with E. herbaceae. Reliable identification of males does not seem to be possible, but see Vikberg (2003) for more detail on characters that may distinguish both sexes of these species. Bionomics. Host plants: Salix lapponum (Vikberg 2003). Biology: Kopelke (1989 b), Roininen et al. (2002), Vikberg (2003).
distribution
Distribution. At present only known from North and West Europe: British Isles, including Ireland (Alexander 1994), Norway, Sweden, Finland and N. Russia (Vikberg 2003, Zhelochovtsev & Zinovjev 1995). Occurrence in Sweden: published records; Torne Lappmark (Malaise, 1921 a, Vikberg 2003). Material examined: Torne Lappmark.
distribution
Distribution. Scotland (Benson 1958), Scandinavia, Finland and N. European Russia (Kola Peninsula) (Vikberg 2003). Benson (1962) regarded Pontania crassipes as " circumpolar arctic-alpine ", but his concept of this species at that time was exceedingly wide (see above), and the possible presence of E. crassipes s. str. in the Nearctic requires further investigation. Occurrence in Sweden: published records; Jämtland (Benander 1969, as Pontania crassipes on S. lapponum), Torne Lappmark, Torne Träsk area (Malaise 1921 a). Material examined: Torne Lappmark. Euura herbaceae (Cameron, 1876) comb. nov.