Davey, P., 2009: A local species confined to southern Britain, the larva feeding on field maple (Acer campestre). In Dorset, the moth has a scattered distribution and is always local. Field maple, however, is a frequent understory tree in old woods and hedges and is most common on soils with relatively high calcium content. A handful of localities evidently support flourishing colonies, and these tend to be situations where field maple is dominant. The following individual is likely to have been an immigrant from abroad transported on a warm south-easterly airflow from northern France: Portland, on 22 August 2001 (M Cade). Recorded in 33 (83%) of 40 10k Squares. First Recorded in 1891. Last Recorded in 2019. (Data up to end 2019) |