Dichrorampha sequana

    Alt Name
    Square-spot Drill

    Wingspan about 10 mm. This is one of the smaller Dicrorampha species and can be distinguished by the broadly rectangular cream-coloured dorsal blotch.


    It prefers unkept verges and embankments, where Yarrow is common.

    When to see it

    Flies in the afternoon and towards dusk. Adults are on the wing in June, and rest on the flowers of the foodplants.

    Life History

    The larvae, rather like other Dichrorampha species, feed internally in the rootstocks of the foodplant, Yarrow.

    UK Status

    Occurring fairly locally in the southern counties, ranging to the Midlands and Wales. In the Butterfly Conservation’s Microlepidoptera Report 2011 this species was classified as local.

    VC55 Status

    It appears to be uncommon in Leicestershire and Rutland, where there are few records. L&R Moth Group status = D (rare or rarely recorded).

    49.316 BF1278

    Leicestershire & Rutland Map

    UK Map