This is the most common of the UK swift moths.
The female is larger and the male has quite variable markings.
Flies mainly at dusk and within the first hour of darkness.
Grassland, gardens, roadsides, fens and moorland.
Recorded in 133 (49.3%) of the 270 2km squares of Huntingdonshire.
Last recorded in June 2018
Recorded date range (Adult): 17 April to 30 August