Trioza alacris is a sap-sucking hemipteran bug in the family Triozidae which creates galls on the leaves of Laurus species. It is found in Europe.

Trioza alacris
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hemiptera
Suborder: Sternorrhyncha
Family: Triozidae
Genus: Trioza
Species:
T. alacris
Binomial name
Trioza alacris
Flor, 1861 [1]
Synonyms

Lauritrioza alacris [2]

Description of the gall

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Trioza alacris causes the edges of leaves to thicken and roll downwards forming pale, elongated pouches. The galls can house two generations in a summer, of up to thirty pale-green nymphs, which are covered in a white wax. Adults can also be found in the gall. The adults usually overwinter in leaf litter but can also spend the winter in the gall.[3] Species of Laurus galled include the Azores laurel (Laurus azorica), bay tree (Laurus nobilis), Laurus novocanariensis and Persea indica.[2]

References

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  1. ^ "Trioza alacris Flor, 1861". Fauna Europaea. Retrieved 31 January 2021.
  2. ^ a b Ellis, W N. "Trioza alacris Flor, 1861". Plant Parasites of Europe. Retrieved 31 January 2021.
  3. ^ Chinery, Michael (2011). Britain's Plant Galls. Old Basing, Hampshire: WILDGuides Ltd. p. 34. ISBN 978-190365743-0.
 
Gall on a bay leaf