Season (Adult / Immature):
National Status: Common
Local Status: Common and fairly widespread resident.
Local Record: Grade 1 See here for explanation
Flight time: Two generations, Apr-Jun, Jul-Sep.
Foodplant: Downy Birch, Silver Birch.
|Year first recorded||1955||2007||1982||1955|
|Year last recorded||2011||2007||2011||2011|
|Number of records||1887||2||190||4158|
|Number of individuals||3862||3||412||8554|
For the region, we have a total of 4158 records from 434 sites. Earliest record on file is in 1955.
For further information refer UK Moths.
Davey, P., 2009: A species with a wide distribution in Britain, the larva feeding on birch (Betula spp.) and alder (Alnus spp.). In Dorset, the moth is common in deciduous woodland containing birch, and at low density in the alder swamps at Powerstock Common. Elsewhere it occurs singly and often at times of immigration, suggesting a dispersive tendency. Such individuals occasionally appear as late as October, and it is worth checking to see if these are in fact Dusky Hook-tip1649. The moth shares a similar distribution and dual-brood pattern to the Scalloped Hook-tip1645, and like that species, a significant number of adult moths have been noted between the two broods, from mid-June to mid July. In warm years, small numbers are on the wing during late September and October. The period of time between the peaks of the bivoltine cycle is seventy-five days on average.