Hawthorn Shieldbug Acanthosoma haemorrhoidale


Species Information
Length up to 15 mm. Typically, like all shieldbugs, this bug is shield-shaped, which is generally green in colour with a triangle of reddish-brown on its back with a green centre. The wings are red-tipped, and the antennae are long with few segments.

It releases a pungent odour when attacked or alarmed. It feed on fruits and leaves of various trees and shrubs, especially Hawthorn.

Seen all year round, although usually dormant during the winter months. It favours hedgerows and woods, but maybe seen in gardens. A common and widespread species, but mainly in the south.


Classification

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Insecta (Insects)
Hemiptera (True Bugs)
Heteroptera (True Bugs)
Acanthosomatidae (Keeled Shieldbugs)
Acanthosoma
Acanthosoma haemorrhoidale (Linnaeus, 1758)


Photographs

May 2021. Back garden, South Staffordshire
Hawthorn Shieldbug (Acanthosoma haemorrhoidale)
Sept. 2016. Back garden, South Staffordshire
Hawthorn Shieldbug (Acanthosoma haemorrhoidale)
Sept. 2016. Back garden, South Staffordshire
Hawthorn Shieldbug (Acanthosoma haemorrhoidale)
Aug. 2016. Back garden, South Staffordshire
April 2021. Back garden, South Staffordshire
April 2021. Back garden, South Staffordshire
Hawthorn Shieldbug (Acanthosoma haemorrhoidale)
Aug. 2016. Back garden, South Staffordshire
Hawthorn Shieldbug (Acanthosoma haemorrhoidale)
Aug. 2016. Back garden, South Staffordshire
Hawthorn Shieldbug (Acanthosoma haemorrhoidale)
Aug. 2016. Back garden, South Staffordshire

Nymphs

Hawthorn Shieldbug Acanthosoma haemorrhoidale early instar
June 2020. 3rd instar, rear garden
Aug. 2021. 5th (final) instar, rear garden
Hawthorn Shieldbug Acanthosoma haemorrhoidale 5th instar
Sept. 2020. 5th (final) instar, rear garden
Hawthorn Shieldbug Acanthosoma haemorrhoidale final instar nymph
July 2017. 5th (final) instar, rear garden
Hawthorn Shieldbug Acanthosoma haemorrhoidale final instar nymph
July 2017. 5th (final) instar, rear garden
Hawthorn Shield Bug (Acanthosoma haemorrhoidale) mid instar
Aug. 2016. 4th instar, rear garden
Hawthorn Shieldbug Acanthosoma haemorrhoidale 5th instar
Sept. 2020. 5th (final) instar, rear garden
Hawthorn Shieldbug Acanthosoma haemorrhoidale final instar nymph
July 2017. 5th (final) instar, rear garden
Hawthorn Shieldbug Acanthosoma haemorrhoidale final instar nymph
July 2017. 5th (final) instar, rear garden

All photographs copyright © Peter Hillman
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