Sordid Underwing
Catocala sordida · Order: Lepidoptera · Family: Erebidae
The sordid underwing moth (Catocala sordida) belongs to the family Erebidae and has a wingspan of 37 to 45 mm. It is found across North America from Canadian provinces such as Saskatchewan, New Brunswick and Prince Edward Island down to U.S. states including Maine, Connecticut, Florida and Texas, and adults fly from May to September. The caterpillars feed on hackberry (Celtis) and blueberry (Vaccinium) plants, and the species produces one generation each year.
Source: Wikipedia
Size
Its wingspan measures between 37 and 45 millimetres.
Source: Wikipedia
What it eats
Larvae feed on plants of the Celtis (hackberry) and Vaccinium (blueberry) genera.
Source: Wikipedia
Life cycle
There is one generation per year.
Source: Wikipedia
When you see it
Adult moths are on the wing from May through September.
Source: Wikipedia
Where it comes from
The species is native to North America, spanning Canadian provinces and many U.S. states as listed above.
Source: Wikipedia
Where it is found in the US
Recorded in 28 of 51 states and DC. Most records: Massachusetts, Michigan, New Jersey, New York, Pennsylvania, Maine, Connecticut, Virginia.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in North America; native in Canada. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos




Questions people ask
When are adult sordid underwing moths active?
Adults can be seen flying from May until September.
Source: Wikipedia
What do the caterpillars of the sordid underwing eat?
The larvae feed on hackberry (Celtis) and blueberry (Vaccinium) plants.
Source: Wikipedia
How many generations does this moth produce each year?
It produces a single generation annually.
Source: Wikipedia
Where is the sordid underwing found?
It lives across North America from Canadian provinces such as Saskatchewan and New Brunswick down to U.S. states like Maine, Connecticut, Florida and Texas.
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 acreaSources
- Wikipedia: https://en.wikipedia.org/wiki/Catocala_sordida
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.