Leptopterna dolabrata is an Art Deco-patterned grass bug common over damp grassland in the UK
in summer months.
The male (above left) is fully-winged and the female (above centre/right) is partly-winged and about 8mm long.
The fresh colour of yelow and black darkens to orange with age for the male.
The nymph, above, has no wings. There is a very similar grass bug,
Leptopterna ferrugata, looking slightly different and prefering drier grassland (link below).