Adult Size: Length: ca. 8.0 to 11.5 mm.
Identifying features: The Birch Shieldbug is a medium sized green bug, with dark red-brown and black markings on the corium.
Habitat: A common woodland species that is also found in gardens, parks and mature hedgerows.
Months seen: The adults are active from early June until early September although they have been recorded on ivy blossom in late November.
Larvae: these can be found from early June until early September, feeding on birch, but may also be seen on hazel and aspen; the new generation is complete by August.
This species overwinters as an adult, emerging and mating in the spring.
Distribution: Common and widely distributed in mixed birch woodlands throughout Britain and Ireland. It is a frequent visitor to light traps.
North Merseyside Distribution Map
This is a distinctive species; although it may be confused with the much larger Hawthorn Shieldbug (Acanthosoma haemorrhoidale) has a green scutellum and red points to the projections on the pronotum and tip of the abdomen.
The Juniper Shieldbug (Cyphostethus tristriatus) is on average smaller and has red- brown curved markings on the corium.
Bantock & Botting (2018)
Evans & Edmondson (2005)
Judd (2009 & 2010)
Pendleton & Pendleton (1997—2018)
Wikimedia Commons (2018)