Euchoeca is a monotypic moth genus in the family Geometridae erected by Jacob Hübner in 1823.

Its only species, Euchoeca nebulata, the dingy shell, was described by Giovanni Antonio Scopoli in 1763.

The ground colour of the forewing is sandy brown or orange cream.

The wings have very fine and faint darker cross lines and creamy-brown chequered fringes.

The larvae feed on birch and alder in damp woodland, fens and other marshy areas.