Univoltine. In Turkey and Cyprus, the ssp. usura Warncke, 1967 flies from early March to early May (Warncke 1974b). In the Iberian peninsula, the two subspecies ssp.donata Warncke, 1967 and ssp. citreola Warncke, 1975 fly from mid March to end of April (Warncke 1976).