A small and very lively carnivorous bug assocated with wetland sedges and rushes.  The forewing are greenish with a dark strip down the centre, legs are greenish-brown, and the antennae are black.

Good photos, preferably of a specimen

wetlands with sedges and rushes - e.g. margins of water bodies

Widely scattered (ref. British Bugs website and British Heteroptera checklist 2021)

Few records, but may be under-recorded

https://www.britishbugs.org.uk/heteroptera/Miridae/Cyrtorhinus_caricis.html