Season (Adult / Immature):
National Status: Common
Local Status: Scarce and thinly distributed or restricted resident.
Local Record: Grade 1 See here for explanation
Flight time: One generation, Feb-Mar.
Foodplant: Silver and Downy Birch.
|Year first recorded||1905||1984||1905|
|Year last recorded||2011||2011||2011|
|Number of records||347||149||992|
|Number of individuals||1203||734||3874|
For the region, we have a total of 992 records from 134 sites. Earliest record on file is in 1905.
For further information refer UK Moths.
Davey, P., 2009: A widespread species in Britain, the larva feeding on birch (Betula spp.). In Dorset, nearly all records of the moth come from the eastern half of the county where it is locally common in woods and on heaths that support good numbers of birch trees. The distribution of the Yellow Horned is similar to that of the day flying Orange Underwing1661. The lack of recent records from west Dorset for both species may be due to the relatively small amount of fieldwork carried out during the spring months. However, historically there is a similar dearth of records from this region, and it is likely that both species are at a lower density here than further east where birches tend to be more frequent. The moth occasionally flies during daylight: Morden Park, female netted whilst flying around edge of birches on 1 April 1934, female flying by day on 22 March 1938 (H Andrewes).