Australian painted lady similar to those in the late summer. Seasonal changes could trigger the development of spring and fall body forms that are ideal for the migration patterns described above. During periods of large migration in Australia, and with the possible help of strong winds, the Australian painted lady migrates across the sea to New Zealand. Multiple occurrences of this butterfly in New Zealand were reported in the 1960s. In the spring of 1968, they appeared on the western coast of New Zealand near the sea, and were unusually abundant. The species is unlikely to be established in New Zealand, as no
Portrait of a Lady (van der Weyden) c. 1460 dating is based on the high-fashion dress and the work's apparent chronological position in the evolution of van der Weyden's style. However, it is possible that it was executed even later (van der Weyden died in 1464). "Portrait of a Lady " was painted on a single oak board with a vertical grain and has an unpainted margin on each side. The panel was prepared with gesso, upon which the figure was then painted in monochrome. Glazes of oil pigment were then added, which allowed for subtle and transparent tonal gradations. Infra-red reflectography reveals that van der Weyden