Length 3.5-4mm. Dark and densely punctured pronotum and scutellum and contrasting pale forewings. 

All year. 

Uncommon. Has recently become established in southern England and can be abundant in some years. 

Rare. 

British Bugs: https://www.britishbugs.org.uk/heteroptera/Lygaeidae/Metopoplax_ditomoides.html