black-veined white

black-veined white (plural black-veined whites)

1. A large species of butterfly, Aporia crataegi, native to Europe and parts of Asia.
   • 2018, Patrick Barkham, The Guardian, 7 April:

     Churchill may, however, simply have been seven decades ahead of his time: new research has revealed that climatic conditions may be suitable for the black-veined white to fly in Britain once again.