Parent Bug

Parent Bug (Elasmucha grisea) is a shield bug that lives mainly on birch trees.

Do not confuse with:
Spotted Shield Bug (Elasmucha fieberi)
Birch Catkin Bug (Kleidocerys resedae)

recognize Parent Bug
Parent Bug with eggs, photo: Aiwok - CC BY-SA 3.0

Parent Bug (Elasmucha grisea) is a shield bug belonging to the shield bugs (Acanthosomatidae) that lives mainly on birch and alder. The bug measures + 6 mm and is colored grey to reddish brown. The bug has numerous black dots. The Parent Bug is common and widespread across Britain and Ireland.
The parent bug can also be found on other woody plants such as beech, holly and spruce. Parent Bugs live off plant sap from leaves and seeds.
The bug is not harmful to the tree.
If the common Parent Bug occurs en masse, there may be some nuisance. Killed Parent Bugs can smell strongly.

Where to find


Control is generally not necessary.


Does not apply.

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