[1] Plagiodera versicolora grows to 2.5 - 4.8 mm in length and is metallic blue or green, occasionally purplish to black in colour.

[2][3] It is predated by the shieldbug Zicrona caerulea, several ladybird species and the larva of a hoverfly (Parasyrphus sp.).

Adults overwinter under logs, loose bark and among vegetable litter near the host plant and become active during April.

[4] Fully developed larvae may be found from June onwards and pupation occurs under the leaves of the host plant.

[4] Freshly emerged adults occur from mid-July and fly in hot weather, occasionally found far from their hosts, especially along river margins.