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A distinctive species, although confusion with the smaller and less elongate Birch Shieldbug E. interstinctus is possible. The lateral extensions of the pronotum are larger in A. haemorrhoidale, and are marked with red, while the scutellum is green and the abdomen frequently red-tipped.
Overwinters as an adult, emerging and mating in the spring. The larvae occur May-October, feeding mainly on hawthorn berries, although a range of other deciduous trees are also used, inlcuding oak, hazel and birch. The new generation is complete from August/September or even later; adults may become darker before hibernation.
Common and widespread in mixed woodlands across Britain and Ireland, becoming scarce in Scotland.
Adult: All year
Length 13-15 mm
|Adult: north London (September 2008) ©Laurence Counter
| Adult pre-hibernation: Lincs (November 2007) ©Rachel Scopes
||Adult: Shrops (June 2007) ©Nigel Jones
|Early instar nymph: London (July 2008) ©Laurence Counter
||Early instar nymph: Surrey (August 2009) ©Ashley Wood
|Mid instar nymph (red form): Co. Durham (Sept 2009) ©Ian Beddison
||Mid instar nymph: south London (August 2007) ©Joe Botting
|Mid instar nymph: Surrey (August 2009) ©Ashley Wood
||Mid instar nymph: Co. Durham (August 2009) ©Ian Beddison|
|Final instar nymph: central London (July 2008) ©Tristan Bantock
||Final instar nymph: Lincs (September 2007) ©Michael Talbot|