Last modified: Dec. 3, 2024, 2:41 p.m.
A local and rare species in Belgium, mainly observed along the westcoast an in the southern part of the country.
Native
The larva mines the leaves. Initially, the mine starts as a gallery almost filled with frass and finally changes into a blotch often occupying the whole leaf surface, with the frass dispersed and heaped. The larvae of the second generation also live inside the flowers and seeds.
Pupation in a cocoon spun to leaf litter.
The adults are active at night and come to light.
Two difficult to separate generations a year from late April to the beginning of October, but they are most abundant from May till the first half of June and again from the second half of July till the end of August.
Several species of Helianthemum. In South Europe also on Cistus species, which are sometimes planted in Belgian gardens.
Mainly in xerothermic limestone areas.