Euura weiffenbachiella

Euura weiffenbachiella is a species of sawfly belonging to the family Tenthredinidae (common sawflies). The larvae forms galls on creeping willows (Salix repens). E. weiffenbachiella is one of a number of closely related species which is known as the Euura atra subgroup.

Euura weiffenbachiella
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Suborder: Symphyta
Family: Tenthredinidae
Genus: Euura
Species:
E. weiffenbachiella
Binomial name
Euura weiffenbachiella
Liston & Vikberg, 2017
Synonyms[1]

E. weiffenbachii
Ermolenko, 1988 nec (Lindqvist, 1958).

Description

The shape of the gall is variable, probably depending on where the egg is laid;[2]

  • it can develop on one side of the shoot, causing it to bend and look similar to a miniature gall of E. amerinae, or
  • it can be spindle-shaped with the shoot remaining straight measuring 10 millimetres (0.39 in) to 15 millimetres (0.59 in) long by approximately 5 millimetres (0.20 in) wide.

Found on creeping willow (S. repens) and S. rosmarinifolia.[2]

Other similar looking species in the Euura atra subgroup are,[2]

Distribution

Liston et al. records the sawfly from central and northern Europe, and east to Yakutia.[2] Redfern et al. records the gall from Great Britain (Scotland) and Ireland.[3]

References

  1. Ellis, W N. "Euura weiffenbachiella Liston & Vikberg, 2017". Plant Parasites of Europe. Retrieved 9 December 2017.
  2. 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): 60. doi:10.11646/zootaxa.4302.1.1. ISSN 1175-5334.
  3. Redfern, Margaret; Shirley, Peter; Boxham, Michael (2011). British Plant Galls (Second ed.). Shrewsbury: Field Study Council. pp. 282–299. ISBN 978-185153-284-1.
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