Family: Geometridae Checklist Number: 70.256
Erannis defoliaria (Clerck, 1759)
Mottled Umber
Rarely recorded in the Outer Hebrides. This is one of the small number of species where the females are completely wingless. The flight period of the males is late in the year, from October into December. The larval food-plants are numerous trees and shrubs.
References:
Leverton, R. & Cubitt, M. (2024). The Larger Moths of Scotland.
Waring, P. & Townsend, M. (2018 third edition). Field Guide to the Moths of Great Britain and Ireland.