Definition of dusky wing in US English:

dusky wing

noun

  • A small dark-winged butterfly of the skipper family, found in North America.

    Genus "Erynnis", family "Hesperiidae"; the species are very difficult to tell apart

    • ‘Like other dusky wings this species is often associated with oak forests and forest openings.’
    • ‘Even the dusky wings were not observed while they otherwise were randomly distributed across all other segments.’
    • ‘The persius dusky wing prefers areas of oak forest that have been burned, leaving charred remains behind.’