Euura destricta

Euura destricta is a species of sawfly belonging to the family Tenthredinidae (common sawflies). The larvae feed on the leaves of willow (Salix species).

Euura destricta
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Suborder: Symphyta
Family: Tenthredinidae
Genus: Euura
Species:
E. destricta
Binomial name
Euura destricta
(MacGillivray, 1923)
Synonyms

Phyllocolpa carinifrons (Benson, 1940)
Phyllocolpa plicaglauca Kopelke, 2007
Pontania excavata auctorum

Description of the gall

These are simple galls with the leaf rolled, or folded downwards affecting one or both sides of the leaf. The female forms the gall before she lays her eggs, with the caterpillar feeding inside the fold. It will also feed on ungalled parts of the leaf, or other leaves.[1][2] The gall is usually found on bay willow (S. pentandra), and can also be found on gray willow (S. glauca) and tea-leaved willow (S. phylicifolia).[1][2]

Redfern et al. state that, in Great Britain, it is safe to identify the galls of this species and Euura oblita by the foodplants. E. oblita feeds on crack willow (S. fragilis) and white willow (S. alba). In Great Britain, other Euura species do not form galls on these host plants.[1]

Distribution

The sawfly has been found in Finland, Great Britain (England and Scotland), Ireland and Sweden.[1][3]

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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. Ellis, W N. "Euura destricta (MacGillivray, 1923)". Plant Parasites of Europe. Retrieved 2 March 2018.
  3. "Phyllocolpa carinifrons (Benson, 1940)". gbif. Retrieved 2 March 2018.


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