Host plants:
The larvae feed on grasses.
Habitat:
Thalpophila vitalba inhabits more dry and warm, grassy sites such as rocky slopes, heaths or pastures. I recorded the larvae together with those of Leucochlaena oditis in rocky gorse garrigues in N-Portugal.
Life cycle:
The moths are on the wing in late summer and early autumn. The larvae overwinter and are mature in winter or early spring.
Remarks:
Thalpophila vitalba occurs from NW-Africa across the Iberian Peninsula to S-France and Italy.