Euura amerinae
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Suborder: Symphyta
Family: Tenthredinidae
Genus: Euura
Species:
E. amerinae
Binomial name
Euura amerinae
(Linnaeus, 1758)
Synonyms

Cynips amerinae Linnaeus 1758
Cryptocampus amerinae Konow (1890)

Euura amerinae is a species of sawfly belonging to the family Tenthredinidae (common sawflies). The larvae form galls on bay willow (Salix pentandra). It was first described by Carl Linnaeus in 1758.

Description

The gall is a globular swelling, up to 15 millimetres (0.59 in) wide and 20–30 millimetres (0.79–1.18 in) long, on the shoots of bay willow (Salix pentandra). As the gall matures the surface becomes cracked. According to Redfern et al. (2011) the gall contains one or several larvae in indistinct chambers, while the website Plant Parasites of Europe suggests the galls have circa four cells, each with a single larva and Liston et al. (2017) state that several larvae normally inhabit the gall.[1][2][3] E. piliserra and this species are the only European gall-inducing sawfly with several larvae in a single gall.[3] Pupation takes place in the gall.[2]

E. amerinae is one of three closely related species known as the Euura amerinae species subgroup. The other members of the group are E. venusta (Brischke, 1883) and E. testaceipes (Brischke, 1883).[3]

Distribution

The insect or gall has been recorded from Europe (Czech Republic, Finland, Germany, Great Britain, Ireland, the Netherlands, Norway and Sweden) through to the northern Russian Far East.[2][3][4][5][6]

References

  1. ↑ Redfern, Margaret; Shirley, Peter; Boxham, Michael (2011). British Plant Galls (Second ed.). Shrewsbury: Field Study Council. pp. 282–299. ISBN 978-185153-284-1.
  2. 1 2 3 Ellis, W N. "Euura amerinae (Linnaeus, 1758)". Plant Parasites of Europe. Retrieved 20 March 2018.
  3. 1 2 3 4 Liston, Andrew D; Heibo, Erik; Prous, Marko; Vardal, Hege; Nyman, Tommi; Vikberg, Veli (2017). "North European gall-inducing Euura sawflies (Hymenoptera, Tenthredinidae, Nematinae)". Zootaxa. Magnolia Press. 4302 (1): 55–56. doi:10.11646/zootaxa.4302.1.1. ISSN 1175-5334.
  4. ↑ "Euura amerinae (Linnaeus, 1758)". BioLib.cz. Retrieved 4 December 2017.
  5. ↑ "Euura (Euura) amerinae (Linnaeus, 1758)". Natural History Museum. Retrieved 4 December 2017.
  6. ↑ "Euura amerinae (Linnaeus, 1758) Linnaeus, 1758". Global Biodiversity Information Facility. Retrieved 7 December 2017.


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