Definition of hairstreak in English:



  • A butterfly with a narrow streak or row of dots on the underside of the hindwing and a small tail-like projection on the hindwing.

    • ‘It is hoped that birds such as the lapwing, skylark and redshank will increasingly use the sites as well as butterflies such as the green hairstreak.’
    • ‘It was a treat, as well, to see the rare white letter hairstreak butterfly, that spends most of its time in the tops of elm trees, come down to take nectar from some bramble blossom, close enough to see the initial ‘W’ on its underwing.’
    • ‘Trees stabilize the ecosystem for butterflies like the great purple hairstreak.’
    • ‘The leaves serve as host for the larvae of two butterflies, the white hairstreak and the brown duskywing.’
    • ‘For the last two weeks I've seen a bunch of small hairstreak butterflies flying around one of the bushes outside.’