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Gonocerus acuteangulatus Box Bug
Family: Coreidae

A relatively large reddish-brown squashbug, distinguished from the commoner Coreus marginatus by the narrower abdomen and more pointed lateral extremities of the pronotum. Nymphs have a green abdomen.

Historically very rare (RBD1) and known only from Box Hill in Surrey, where it feeds on Box trees, this bug is expanding its range and now occurs widely in the south-east of England and beyond. It is exploiting different foodplants, and has been found on hawthorn, buckthorn, yew and plum trees.

Adult: All year

Length 11-14 mm

see illustrated life stages chart
Box Bug Gonocerus acuteangulatus
Adult: Surrey (April 2010) ©Tristan Bantock

Box Bug Gonocerus acuteangulatus Box Bug Gonocerus acuteangulatus
Adult: Box Hill, Surrey (September 2007) ©Tristan Bantock

Adult: north London (November 2008) ©Tristan Bantock
Box Bug Gonocerus acuteangulatus Box Bug Gonocerus acuteangulatus
Adult: Box Hill, Surrey (September 2007) ©Tristan Bantock

Adult: Essex (September 2009) ©Stuart Read

Box Bug Gonocerus acuteangulatus nymph Box Bug Gonocerus acuteangulatus nymph
Early instar nymph: south London (July 2009) ©Tristan Bantock

Late instar nymph: west London (July 2009) ©Julian Oliver