British Bugs
HOME A BIT ABOUT BUGS GALLERY SYSTEMATIC LISTS RECORDING BUGS CONTACT US LINKS

Adelphocoris quadripunctatus
Family: Miridae

Mirids in the genus Adelphocoris share a combination of characters including a large elongate body, large eyes, long antennae, prominent tibial spines and a long rostrum reaching the hind coxae.

This species is similar to the much commoner A. lineolatus and is best separated by the single line on the scutellum and four spots on the pronotum (these are occasionally weak or absent). The 2nd antennal segment is dark at the apex and under the microscope, the dark pubescence on the elytra is coarse and conspicuous.

Unknown in Britain until 2016, when populations were found at various sites in Glamorgan, south Wales, suggesting that the species was locally well-established. Bugs were associated with both Large and Common Bird's-foot Trefoil. Several overlooked specimens from southern England were found in the Natural History Museum archives, which had been collected in the 19th century and misidentified as A. lineolatus. The species was then discovered at a site in Sussex during 2017. Further records of this species are of great interest since its current status is unclear.

Adult: July-September
Length 7.5-10.5 mm
Adelphocoris quadripunctatus
Adult: Glamorgan (September 2017) ©Howard Burt

Adelphocoris quadripunctatus Adelphocoris quadripunctatus
Adult: Glamorgan (August 2020) ©Martin Bell

Adult: Glamorgan (September 2017) ©Howard Burt

Adelphocoris quadripunctatus Adelphocoris quadripunctatus
Adult: Glamorgan (August 2016) ©Chris Lawrence

Adult: Glamorgan (July 2017) ©Liam Olds