Host plants:
The larvae are polyphagous in the herb layer. I found them feeding on Geranium (Samos Island).
Habitat:
Polymixis iatnana most often inhabits places with herbs in or at the margin of open woodland. In Samos Island I recorded larvae at the shady margin of a boulder field below a cliff in 900m and in an embankment in an humid riverine woodland in 100m.
Life cycle:
The moths occur between September and early December. The larvae develop in winter and early spring. I found half-grown larvae in 900m and fully-grown ones in 100m in Samos Island in early March 2016.
Remarks:
Polymixis iatnana is very closely related to P. serpentina. It is known from Cyprus and Samos Island. It is very probable that ist also occurs in Asia Minor, other East Egean Islands and the Levant.
Literature:
Pekarsky, O. (2012): Taxonomic overview of Polymixis serpentina (Treitschke, 1825) species-group, with the description of a new species (Lepidoptera, Noctuidae, Xyleninae). - ZooKeys 201: 15-26.