(More fully "pine-tree lappet moth") a large brown moth of continental Eurasia, Dendrolimus pini (family Lasiocampidae), whose caterpillar can be a pest of pine and spruce trees.
Origin
Mid 18th century.
Definition of pine-tree lappet in US English:
pine-tree lappet
noun
(More fully "pine-tree lappet moth") a large brown moth of continental Eurasia, Dendrolimus pini (family Lasiocampidae), whose caterpillar can be a pest of pine and spruce trees.