Sad Underwing

Catocala maestosa · Order: Lepidoptera · Family: Erebidae

Also called: Sad Underwing Moth

Damages trees, gardens or crops. Its larvae feed on hickory and walnut trees, so it can damage trees and gardens.

Source: Wikipedia

Sad Underwing
Photo: Sam Kieschnick, CC BY

The sad underwing moth has a wingspan of about 78 to 98 mm. Adults are active from July through October, depending on where they live. It occurs across the eastern United States, from New York down to Florida and west to Texas and Oklahoma.

Source: Wikipedia

How to recognize it

Catocala maestosa, known as the sad underwing, is a moth in the family Erebidae.

Source: Wikipedia

Size

Its wingspan ranges from 78 to 98 mm.

Source: Wikipedia

What it eats

The caterpillars feed on water hickory, pecan, and black walnut trees.

Source: Wikipedia

Life cycle

There is probably one generation each year.

Source: Wikipedia

When you see it

Adults are on the wing from July to October, varying with location.

Source: Wikipedia

Where it comes from

Its native range covers the same eastern US states listed for its habitat.

Source: Wikipedia

Where it is found in the US

Recorded in 33 of 51 states and DC. Most records: Texas, Oklahoma, Louisiana, Illinois, Ohio, Alabama, Virginia, Georgia.

Darker = more records. Counts are museum and citizen-science records, not population size.

Source: GBIF

Status: native in North America; native in Canada; native in United States. Source: iNaturalist

Months it is reported in the US

JFMAMJJASOND

Source: GBIF

More photos

Questions people ask

When are adult sad underwings active?

Adults fly from July through October, depending on the region.

Source: Wikipedia

How large is the sad underwing moth?

Its wingspan measures about 78 to 98 mm.

Source: Wikipedia

What trees do the larvae eat?

The larvae feed on water hickory, pecan, and black walnut.

Source: Wikipedia

Where is the sad underwing found in the United States?

It occurs from New York down to Florida and west to Texas and Oklahoma, reaching north to Illinois and Minnesota.

Source: Wikipedia

Same family (Erebidae)

Sources

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

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

Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-23.

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.