Norfolk status Common in oak woodland throughout much of England, Wales and southern Scotland, adults often flying some distance from the host plant. Larvae form a pear-shaped silken case, initially on the underside of a leaf, moving its case to an angle of twigs to over-winter.
Adult moths are virtually impossible to identify without recourse to dissection.
[MBGBI vol3 p211]
Determination by Genitalia Examination (gen. det.) Required
Case: A good quality photo or specimen of the case and plant/pabulum and gen. det. of bred moth is
Recorded in 29 (42%) of 69 10k Squares. First Recorded in 1874. Last Recorded in 2019. Additional Stats