- Generally Common / Widespread
ID pointers: One consistent feature that is diagnostic and visible in all but the darkest or palest forms is the dark cross-line beyond the centre of the forewing, which is solid smooth and wavy, with a distinctive large crescent like curve in leading half. Also a strongly scalloped hind-wing fringe.
Distribution: Resident, fairly common locally and widely distributed throughout Derbyshire. Largest populations found in the southern lowlands of the county. Melanic forms can be dominant in populations.
Forewing: 19-26mm
IMAGES BELOW: Melbourne, Derbyshire & Curbar, North Derbyshire – Images by Tony Davison © and Jane & Phil Lester © – note: both images are probable females