Host plants:
The larvae are polyphagous on grasses, but also herbs and occasionally young trees.
Habitat:
Noctua interjecta is quite adaptable and inhabits open to semi-open habitats such as edges along forest trails, wetlands, hedge areas and grasslands (probably more edges). Own observations of larvae succeeded close to the ground in a sedge reed together with those of Boloria eunomia and in a seasonally dry forest edge with Zygaena osterodensis.
Life cycle:
The caterpillar overwinters and is mature in May or June. The moths fly in July and August, sometimes still in September.
Remarks:
Noctua interjecta is widespread in south and Central Europe. It occurs in the north today after a time of apparently strong expansion to southern Sweden. It also can be found in Western Asia (Turkey, Caucasus).