Last modified: Dec. 29, 2023, 5:35 p.m.
A very rare and recent (2016) species in Belgium, few observations known.
Native
For your information, to the best of our knowledge, the first 10 Belgian observations are listed here:
1) 1 ♂ on 08.viii.2016 at Torgny (LX), leg. Werkgroep Bladmineerders, gen. det. S. Wullaert.
2) 1 ♂ on 28.v.2022 at Torgny (LX), leg. Werkgroep Bladmineerders, gen. det. S. Wullaert.
3) 1 ♀ on 30.vii.2022 at Vallée de l'Olef near Rocherath (LG), leg. Werkgroep Bladmineerders, gen. det. S. Wullaert.
Wingspan 12–15 mm. Grey-black forewings with blue-gray shiny spots and transverse bands. Head, thorax and middle body with varying amounts of light yellow-brown scales.
Larva and pupa bores in the base of the stem on the food plant.
The adults are on the wing from late May towards mid-August. Belgian specimens have been seen in May and in July/August.
The larva lives on Knautia arvensis.
They inhabits open spaces where the host plant grows.