Scolytidae: Pine shoot beetle Tomicus piniperda on end of Scots pine log.
The beetle is attracted to monoterpenes evaporating from the wound resin globules seen
at the lower left of photo.
Olfactory recognition of host-tree susceptibility by pine shoot beetles. Naturwissenschaften 72:324-326.
Images © 1996 by John A. Byers, Chemical Ecology.