Eucosma cana (Hawotth, 1811)

hoary bell

on Cirsium

parasite

Eggs are deposited one by one at the outside of a still closed flower head. The larva works itself inside from the top, then feeds on the developing achenes. The late larve makes a frass filled tunnel in the receptacle, then leaves the head.

host plants

Asteraceae, monophagous

Cirsium vulgare.

phenology

The larva hibernates in the soil in a cocoon made out of silk and dirt, and pupates in the spring.

distribution within Europe

(PESI, 2019).

larva

Pale, head black.

synonyms

Epiblema cana.

references

Bland & Rotheray (1994b), Disqué (1905a), Redfern (1986a).

mod 16.x.2019