Cerambyx dux develops in living or moribund trees and can therefore be regarded as a physiological pest. Larvae expel large quantities of well visible sawdust which can serve as a hallmark to locate attacked trees. The adults are active during the day but are very difficult to find.

Body length:	25 - 45 mm
Life cycle:	3 - 4 years
Adults in:	May - July
Host plant:	polyphagous in fruit and ornamental trees or brushes (Prunus, Elaeagnus, Crataegus etc.)
Distribution:	Bulgaria, Macedonia, Turkey, Greece, Crimea, NW Iran, Near East

The depicted beetles were collected on living oleaster (Elaeagnus angustifolia) in Karadut village (Nemrut Dagi National Park, Adiyaman prov., Anatolia, SE Turkey), (Rejzek and Hoskovec, 1999).

Collected by M.Hoskovec.