Host plants:
The caterpillar lives quite polyphagous on deciduous woods (Salix, Rhamnus, Betula, etc.), but it seems to prefer Prunus spinosa.
Habitat:
Macaria alternata inhabits forest edges and clearings, scrub and hedgerows of all kinds.
Life cycle:
The pupa hibernates and the moths fly in mostly two overlapping generations from late April to late August. I tapped the caterpillar in early August in the Swabian Jura from blackthorn.
Remarks:
Macaria alternata is widespread in Europe and temperate Asia.