Geometridae

70.134 Barred Rivulet Perizoma bifaciata (Haworth, 1809)

Local

Similar species: If care is taken this species is unlikely to be mistaken for other British or Irish species.

Forewing: 9 to 11mm

Habitats: Calcareous short-turfed downland, well used woodland rides, along limestone gravel paths and on wasteground. Occasionally on clay soils.

Habits: The moth is occasionally disturbed in the day. It flies from dusk and comes sparingly to light.

Foodplant: The larva feeds on the ripening seeds in the flowers and seed capsules of Red Bartsia and sometimes eyebrights. It later feeds externally. It pupates under the soil, sometimes for several years.