Recent Status: Arrived in Suffolk as an immigrant from the east and had established a breeding population by 2016. It has subsequently spread inland from its coastal breeding populations
Life Style: A double brooded species, though doubtful whether or not the second adult generation will generate a viable brood. They fly during June/July and August/September in Britain. The larvae feed on the seeds of Acer keys, preferring A. campestre. They are presumed to pupate in the year of oviposition to produce the second brood at least.
Identification: The moth is dark brown. The face and palps are cream. There is a prominent dorsal blotch at one half that is round ended and slightly curved towards the termen. This and the costal spots may be cream or white. There may be cream or white scales scattered on the forewing especially around the ocellus which has indistinct black marks. There are faint plumbeous fascia from the white or cream costal strigulae and around the ocellus. The larvae eat into the keys at the joint between the two seeds and then eat out the seed. The empty half keys fall to the ground and can betray the presence of the larvae on the tree particularly during August and September.
Retained Specimen / Photograph will be Required.
Recorded in 5 (9%) of 58 10k Squares. First Recorded in 2009. Last Recorded in 2020. Additional Stats