Last modified: April 7, 2021, 4:12 p.m.
A very rare species in Belgium, only known from NA and WV.
Wingspan: 12–14 mm.
As with many members of this family, studying the genitalia is necessary. Females however showing white abdomen underside with dark last segment.
See also bladmineerders.be
In May, the larva spins a web almost completely covering the food plant and extending into the ground.
The adults like to rest during daytime on yellow flowers.
One generation a year: July.
Xerothermic, grassy areas on chalk or limestone, but also on sandy soil.