Food Plant: Sempervivum tectorum (Common houseleek), S. arachnoideum (Cobweb houseleek) and S. montanum (Mountain houseleek)

Mine: May-June, August-September

Notes: The outer leaves of rosettes of affected plants become greyish or brownish-green (as shown) and then become limp and dry up. The larva exits a leaf, near its base, to move to another leaf to feed or pupate in the soil leaving a hole, . First discovered in Surrey in 2006, presumably from imported plants (Collins & Halstead (2008)). It is slowly spreading in the UK, reaching Norfolk in 2013. Mines shown on Sempervivum species.

Data: 26.v.2020, Mol, Antwerpen, Belgium

Image:© Carina van Steenwinkel