Do you have something similar in this species? I sent this photo of the male genitalia from Croatia to Mr. Razowski and wrote me the following:
Your Aethes is related to bilbaensis Roesler = mediterranea Rebel. It can be a new species differing from it in the laterobasal processes of aedeagus (dorsal serration). Unfortunately we do not know the variation of this characters (I have something similar, but the problem is to find the files). In the mentioned sp, the thorns of serration are larger, sharp. The shape of valva is variable in one closely related sp.
Aethes bilbaensis♂:Kroatia, Dalmácia, Rogoznica, 10 m, 4 August 2019, (leg., Coll. & Photo: Frantiek Kosorín)