Callidium (Callidostola) aeneum aeneum (De Geer, 1775)
biology
Callidium aeneum aeneum - gallery
[Photo © Milan Sláma]

The picture show a very typical galleries (A) and pupal cells (B) in spruce (Picea; Czechia) and in fir (Abies; Greece) branches, created by larvae of Callidium (Callidostola) aeneum aeneum.

[Photographs are published with the kind permission of Milan Sláma]