Bembecia megillaeformis (Hübner, 1813)
on Colutea, Cytisus, Genista
The larva bores in the roots.
Rarely Astragalus glycyphyllos.
The larva lives for two years, in the first year without apparent damage to the host plant. In the second year a circular gallery is made between the bark and the wood at the level of the root crown, which kills the plant. The larva pupates in the gallery, without making a cocoon.
distribution within Europe
Larva and pupa are extensively described by Bąkowski.
Bąkowski (2013b), Bartsch (2003a), Laštůvka & Laštůvka (2001a), Sobczyk, Kallies & Riefenstahl (2007a), Špatenka (1987a), Toševski in litt. (2018).