11/08/2026
November isn't only the month of falling leaves. On mild days in the yard or at a woodland edge, butterflies and moths are still flying — if you know which ones to look for. 🦋
Some butterflies overwinter as adults and come out whenever the sun warms a south-facing wall. The mourning cloak is the classic — one of the first butterflies of spring and one of the last of fall, because it's the same individual, sleeping in a woodpile in between. The eastern comma and question mark do the same, and the ragged leaf-shaped wing edges and silver marks on the underside make them almost invisible on bark. The orange sulphur keeps flying over clover and alfalfa fields until hard frost.
Others are migrants. Red admirals and American ladies head south in fall, and the last ones pass through in November across much of the country. In the Gulf states and Southern California, late monarchs are still on the move.
And then there are the moths. Late fall is geometrid season: the fall cankerworm emerges in November, the males flying at dusk while the flightless females — grey, wingless, the size of a small spider — climb tree trunks to lay eggs. The linden looper does the same a few weeks earlier. The sallow moths Eupsilia are among the few noctuids active on cold evenings, coming to lit windows and sap runs. And the morning glory plume moth, with wings reduced to feathery T-shaped plumes, looks less like a moth than a piece of embroidery.
What you can do: leave the late asters and goldenrod standing while they're still in flower, and plant a witch hazel for the weeks after — the last nectar of the season. Don't deep-clean the yard: leaf piles, woodpiles, and wild corners are where the overwintering adults are right now. If a butterfly turns up inside the house, don't put it out in the cold; move it gently to an unheated garage or shed. And if you want to contribute, log what you see on iNaturalist or through the North American Butterfly Association counts.
Which species you'll see depends on your region — a New England November and a Gulf Coast November are very different places. ☀️