Last modified: Nov. 2, 2024, 11:04 a.m.
A very rare and rapidly declining local species in Belgium, nowadays only observed in LG.
This species is considered Regionally Extinct according to the IUCN Red List category for Flanders 2023.
Native
The larvae feeding mainly on cultivated Delphinium and on Aconitum.
The young larva hibernates at the roots of the food plant and later lives and feeds in a small capsule constructed from a folded and partially withered leaf. After the last instar, the bright green larva lives in the open on the leaves of the food plant and can be found in May and June, and as a partial second generation in August.
Pupation takes place in a large yellow cocoon attached to the underside of a leaf on the food plant.
The adults feed actively at dusk and later come sparsely to light and never at sugar.
The adults fly in one generation a year from mid-May till August, sometimes a partial second generation occurs till October, although observation data in Belgium are from 06 June to 08 August.
The larva lives mainly on varieties of Delphinium and Aconitum. Other plants recorded are Consolida, Trollius, Artemisia absinthium and Artemisia vulgaris.