This is one of three rather similar Cosmia species found in the UK. This species has much larger pure-white markings on leading edge of forewing.
Pupates in loose soil.
Elm woodland and hedgerows, preferring the presence of large elms.
Recorded in 61 (22.6%) of the 270 2km squares of Huntingdonshire.
Last recorded in August 2020
Recorded date range (Adult): 17 July to 12 September
Recorded date range (Larva/Leafmine): 14 May to 14 June