Host plants:
The species is according to literature polyphagous on herbs and shrubs. In the spring it can be found with a pocket lamp on the budding bushes at night.
Habitat:
Noctua janthe colonizes shrubbery rich habitats, such as grasslands or on forest edges.
Life cycle:
The caterpillars overwinter and are mature in May. The moths fly from late June to early September.
Remarks:
The expansive Atlanto-Mediterranean species is found from north Africa across Western Europe and Italy to western Poland and Hungary.