Morley’s Final Catalogue: A common birch-feeder, frequent about Ipswich, Aldringham, at Monks Soham light in July, Beccles; and Brandon. It hibernates: Bentley Woods up to 28 October and again on both 11 and 23 March "l896 (Mly).
Recent Status: A common species in Suffolk.
Life Style: Double brooded and hibernates. Larvae feed from spun leaves mostly on Quercus. The comments by Morley do not distinguish A. ferrugana from A. notana.
Identification: The species is very variable in colour and markings though a little less so than the similar A. notana from which it is only reliably separated by genitalia dissection. More Info It should be noted that the images in Moths and Butterflies of Great Britain and Ireland are wrongly labelled in reverse for A. ferrugana and A. notana.
Determination by Genitalia Examination (gen. det.) Required
Recorded in 24 (41%) of 58 10k Squares. First Recorded in 1987. Last Recorded in 2019. Additional Stats