Host plants:
The larvae feed principally on Euphorbia serrata.
Habitat:
Oxicesta serratae inhabits dry and warm places with the host plant Euphorbia serrata (pastures, garigues, rocky slopes), preferredly in medium high mountains up to 2000m.
Life cycle:
The moths occur between April and mid-July, according to altitude. The larvae live in small groups in webbings on the host plant (May to early August).
Remarks:
Oxicesta serratae occurs in the Iberian Peninsula.