The Dun-bar - Cosmia trapezina

    Alt Name
    Dun-bar Moth

    Wingspan 25-33 mm. A variable species, with the ground colour ranging from ochreous-yellow to dark brown, with a varyingly contrasting band on the forewing. However it is distinctly different from the other British Cosmia species, and not difficult to identify.

    Identification difficulty

    Woodland, gardens and hedgerows.

    When to see it

    The moths fly from July to September and come to both light and sugar.

    Life History

    Larva polyphagous on various broad-leaved trees and shrubs including Elm, Oak, Birch, Blackthorn, Hawthorn, Hazel, Willow and Field Maple. They are also well-known for their cannibalistic tendencies towards larvae of other moths, and to their own species in captivity. In a recent survey to determine the status of all macro moths in Britain this species was classified as common.

    UK Status

    It is commonly distributed over much of Britain.

    VC55 Status

    Quite common in Leicestershire and Rutland. L&R Moth Group status = A (common and resident)

    73.216 BF2318

    Leicestershire & Rutland Map

    MAP KEY:

    Yellow squares = NBN records (all known data)
    Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

    UK Map