Noctua janthe - Lot Moths and Butterflies - species in Las Descargues, the Lot, France
drawing of a moth



Las Descargues, 28 July 2009
Noctua janthe Adult


© Robin Howard

Noctua janthe (Borkhausen, 1792)

Lesser Broad-bordered Yellow Underwing

Wingspan: 34-42mm

A univoltine species on the wing from June to October with a summer diapause during the hottest months. It is an infrequent visitor to light but has been recorded from the traps at Las Descargues and those in and bordering the plateau woodlands. It is a scarce species on the Causse.

The larva is polyphagous on herbaceous plants, overwinters as a partially grown larva before pupating in the spring below ground.