Gardeners' World Web User
04/11/2007 at 22:05
Reply to Frieda: There are several British moth species with wingless (or at least flightless) females, and for some reason most of them seem to come out in the winter. There's the vapourer, of course, the scarce vapourer (which is scarcer), the March moth (appears in March), the winter moth (appears in winter), northern winter moth (lives up north), small brindled beauty, pale brindled beauty, Rannoch brindled beauty (but not the very closely related brindled beauty, which has fully winged females), belted beauty, spring usher, scarce umber, dotted border, mottled umber and early moth. These are not all closely related species, so it seems that flightlessness has evolved several times across the Lepidoptera.