The Chestnut

Conistra vaccinii · Order: Lepidoptera · Family: Noctuidae

Also called: Chestnut

Damages trees, gardens or crops. The larvae can chew leaves of deciduous trees, shrubs and later herbaceous plants, so they may damage trees and garden plants.

Source: Wikipedia

The Chestnut
Photo: Donald Hobern, CC BY

The chestnut moth has a wingspan of about 28 to 36 mm. Adults are on the wing from September through May, depending on where you are. It lives in many places, from open forests and gardens to dry or wet, cool or warm habitats.

Source: Wikipedia

How to recognize it

Its wing pattern and colour are highly variable, ranging from dove-grey to dark brown with light brown, reddish or black-brown markings.

Source: Wikipedia

Size

The wingspan measures between 28 and 36 mm.

Source: Wikipedia

Where it lives

It occurs in open forests, scrubland, downs, gardens, parkland and shrub-rich open country. These habitats may be dry or wet and can be cool or warm.

Source: Wikipedia

What it eats

The caterpillars feed on a variety of deciduous trees and shrubs, and later also eat herbaceous plants.

Source: Wikipedia

Life cycle

Adults fly from September to May, varying with location. The larva is reddish-brown above, greenish below, with a freckled dorsum and faint pale lines.

Source: Wikipedia

When you see it

The moth is active from September through May, depending on the region.

Source: Wikipedia

Where it comes from

The species is found throughout Europe, North Africa and across the Palearctic to Siberia. Its range stretches from Morocco in the west through the Mediterranean, Anatolia, Turkestan and into western and central Siberia.

Source: Wikipedia

Questions people ask

Do chestnut moth larvae damage garden plants?

Yes, the larvae feed on leaves of deciduous trees, shrubs and later on herbaceous garden plants, which can cause noticeable damage.

Source: Wikipedia

When can I see adult chestnut moths?

Adults are on the wing from September to May, though the exact timing depends on where you live.

Source: Wikipedia

How big are chestnut moths?

Their wingspan ranges from about 28 to 36 mm.

Source: Wikipedia

Where does the chestnut moth live?

It inhabits a wide range of places, including open forests, gardens, scrubland and both dry and wet habitats.

Source: Wikipedia

Same family (Noctuidae)

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Conistra_vaccinii

Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia

Text written 2026-10-22 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.

How this page works

This is one bug's fact sheet. The colored box at the top says whether it is dangerous. Sections below cover how to recognize it, whether it is a pest, and how to deal with it. The US map shows which states have records; tap a state to see other bugs there.

Every fact on Bug FAQ comes from a named source (university extension sites, government agencies, GBIF, iNaturalist, Wikipedia). The source is linked next to each section. If we have no source for something, we leave it out.