Heterarthrus vikbergi Liston, Mutanen & Viitasaari 2019
Irregular brown blotch mine, adjacent to the leaf margin. The solitary larva pupates in a circular cocoon (diameter 5-7 mm), that, under laboratory conditions, often dropped out ouf the leaf.
distribution within Europe
The three sternites each with a brownish black spot; also the first two abdominal sternites with a vague spot.
Liston, Mutanen & Viitasaari (2019a).