| ...vely in sunny places with old, sick or dying oak trees, in which its larvae develop. However, it completely avoids dead wood. Occasionally, it is also found on hornbeam (Carpinus), chestnut (Castanea), locust bean plants (Ceratonia), ash (Fraxinus), walnut (Juglans), pears (Pyrus), black locust (Robinia), willow (Salix) and elm (Ulmus). The great capricorn beetle feeds on tree sap expired from injured mature trees or tree fruits. |