Last modified: Jan. 2, 2024, 1:52 p.m.
A very rare and local species in Belgium, not often recorded.
Native
Wingspan 10–14 mm. The dark general appearance and the dense orange-ochreous irroration in the distal half of the forewing and the pale ochreous-yellow medio-dorsal blotch are characteristic.
Most of the species in this genus should be checked for genitalia, especially when worn.
The larva bores and feeds in the roots on the host plant. It pupates in a cocoon on the food plant.
The adults are active during late afternoon and later come to light.
The adults have been seen from mid-May towards late August.
The larva lives on Achillea ptarmica.
It inhabits marshy woodland, damp pastures, river-banks and ditches.