Last modified: Nov. 19, 2023, 1:09 p.m.
A very rare species but well distributed in Belgium.
Native
Wingspan 15–19 mm. Unmistakably when freshly emerged, with a distinctly rosy or purplish tinge, but this can fade quite quickly to a dull buff colour.
C. rosaceana has an overall pink colour including the cilia. The colouring is generally darker towards the head with a brown or grey colour. The wing markings are even across the wing.
Used specimens can resemble Celypha rufana, but markings show some coalescence resulting in short fasciae particularly from the dorsum.
The larva bores in the roots and pupates in a white cocoon just beneath surface of the ground. The adults come to light.
The adults fly from late May till mid-September with a peak during July.
The larva lives on Sonchus arvensis, Sonchus asper and Taraxacum officinale.
It inhabits coastal areas, rough pastures