Insecta : Lepidoptera : NoctuidaeButterflies and Moths

Conistra ligula (Esper, 1791)

Dark Chestnut

Conistra ligula

Description: Wingspan 30-38 mm. Forewings are dark reddish brown with poorly defined stigmata, and paler subterminal line and fascia. Hindwings are dark fuscous Recorded during October in N. Ireland. Skinner gives October and November as the main fight period in Britain.

World Distribution: Across western Europe from Spain to the central Netherlands.

Irish Distribution: Not as common as the closely related Chestnut C. vaccinii but this may be exaggerated as this is a late-flying species which may be under recorded.

Ecology: A late autumnal species found mainly in damp woodland and a few fens and bogs. Adults are attracted to light and also to the flowers of Ivy Hedera helix blossom. The larvae feed from April to June on Hawthorn Crataegus monogyna, willow Salix spp. and oak Quercus spp. It overwinters as an egg.

Key Identification Features:

  • Dark brown base colour of the forewings
  • Pale subterminal fascia
  • Dark fuscous hindwings

Distribution Map from NBN: Conistra ligula at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Conistra ligula at iNaturalist World Species Observations database.

 Thompson, R. & Nelson, B. (2023). Conistra ligula. (Esper, 1791). [In] Moths of Northern Ireland.
https://habitas.org/moths/species.php?item=6354. Accessed on 2026-11-02.