Definition of mourning cloak in English:

mourning cloak

Pronunciation /ˈmôrniNG klōk/ /ˈmɔrnɪŋ kloʊk/

noun

North American
  • A migratory butterfly with deep purple yellow-bordered wings.

    British term Camberwell beauty

    Nymphalis antiopa, subfamily Nymphalinae, family Nymphalidae

    ‘I believe they were mostly Harris's checkerspots and wood nymphs, or the like, but there were also the occasional monarchs, swallowtails, and mourning cloaks.’
    • ‘Doug talks about some local species of butterflies, ones with cool names like mourning cloaks, commas, and question marks.’
    • ‘Butterflies including the tiger swallowtail and mourning cloak rely on the flowers of the red maple for their survival and reproduction.’
    • ‘The first of these, mourning cloak butterflies, usually remain in crevices outside and only rarely make it into the cabin.’