Biology

The larvae feed on the needles of coniferous trees, especially Scots Pine (Pinus sylvestris). The larva overwinters while still quite small, descending from the hostplant during this period and hiding among leaves and other debris on the ground. Early in the spring, the larvae climb back up the trees and complete their growth there. They pupate within a silken cocoon.

The adult moths do not feed, but rely on reserves built up during the larval stage.