Bug FAQClover Looper Moth
Caenurgina crassiuscula · Order: Lepidoptera · Family: Erebidae
Also called: Clover Looper, Grass Looper
The adult moth has a wingspan of about 30 to 40 mm. It lives across the United States and nearby parts of Canada, reaching as far west as Alaska and the Northwest Territories. Adults are active from early spring through late fall, depending on location.
Source: Wikipedia
Size
Wingspan ranges from 30 to 40 mm.
Source: Wikipedia
What it eats
Larvae feed on various clover species, grasses, and lupine.
Source: Wikipedia
When you see it
Adults are on the wing from March through November, varying by region.
Source: Wikipedia
Where it is found in the US
Recorded in 46 of 51 states and DC. Most records: Vermont, Illinois, Michigan, Massachusetts, Pennsylvania, Ohio, New York, Minnesota.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in North America; native in United States; native in Canada. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Questions people ask
When are Clover Looper Moths active?
Adults can be seen from March to November, depending on where you live.
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/Caenurgina_crassiuscula
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.