Euura collactanea

Euura collactanea is a species of sawfly belonging to the family Tenthredinidae (common sawflies). The larva feed within galls on the leaves of willows (Salix species). It was first described by Arnold Förster in 1854.

Euura collactanea
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Suborder: Symphyta
Family: Tenthredinidae
Genus: Euura
Species:
E. collactanea
Binomial name
Euura collactanea
(Förster, 1854)
Synonyms

Description of the gall

The gall is found on the underside of a leaf of the host plant. It is globular and up to 5 mm in diameter. Descriptions vary according to the source. According to the Plant Parasites of Europe website, the gall can be hairy and sometimes warty. The colour varies from bright red to a red-tinged green. Redfern et al (2011) describe the gall as having brown warts and either no hairs or slightly hairy. The galls can be found on the leaves of creeping willow (Salix repens) and rosemary-leaved willow (Salix rosmarinifolia).[1][2]

Distribution

The gall is found, in the west from Great Britain and Ireland (locally common), north to Sweden and east to Lake Ladoga, Russia.[3][2]

References

  1. Ellis, W N. "Euura collactanea (Förster, 1854)". Plant Parasites of Europe. Retrieved 19 March 2019.
  2. Redfern, Margaret; Shirley, Peter; Bloxham, Michael (2011). British Plant Galls (Second ed.). Shrewsbury: FSC Publications. pp. 282–299. ISBN 978-1-85153-284-1.


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