Bug FAQUlalume Underwing
Catocala ulalume · Order: Lepidoptera · Family: Erebidae
Also called: Ulalume Underwing Moth
The Ulalume Underwing has a wingspan of about 6 to 7.5 centimeters. It lives in the United States from Virginia and Georgia down to Florida, and west to Texas, Oklahoma, and north to Illinois. Adults are active from June through September, and there is one generation each year.
Source: Wikipedia
Size
Wingspan ranges from 60 to 75 millimeters.
Source: Wikipedia
What it eats
Larvae feed on the tree Carya alba.
Source: Wikipedia
Life cycle
There is one generation per year.
Source: Wikipedia
When you see it
Adults are on the wing from June to September.
Source: Wikipedia
Where it is found in the US
Recorded in 24 of 51 states and DC. Most records: Missouri, Mississippi, Alabama, North Carolina, Arkansas, Georgia, Kentucky, South Carolina.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in United States. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Questions people ask
When are adult Ulalume Underwings active?
Adults can be seen flying from June through September.
Source: Wikipedia
How many generations does this moth have each year?
It produces one generation annually.
Source: Wikipedia
Same family (Erebidae)
Spongy MothLymantria disparDamages trees, gardens or crops
Fall Webworm MothHyphantria cuneaDamages trees, gardens or crops
Brown-tail MothEuproctis chrysorrhoeaCan irritate skin
Isabella Tiger MothPyrrharctia isabella
Virginian Tiger MothSpilosoma virginicaCan irritate skin
Salt Marsh MothEstigmene acreaDamages trees, gardens or cropsSources
- Wikipedia: https://en.wikipedia.org/wiki/Catocala_ulalume
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-26 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-26.