Stathmopoda pedella (Linnaeus, 1761)

alder signal

on alder

parasite

In August-September the larvae live as borers in the still green female catkins, feeding on te seeds. Infected catkins sometimes have a weak discolouration, but otherwise only a little entrance hole and a bit of extruded frass betray their presence. Full grown larvae drop to the ground for pupation.

host plants

Betulaceae, monophagous

Alnus glutinosa, incana.

distribution within Europe

(PESI, 2019).

references

Emmet & Langmaid (2002b), Klimesch (1960a), Koster & Sinev (2003a), Pollard (2011a).

mod 15.viii.2019