Bug FAQBog Lygropia Moth
Lygropia rivulalis · Order: Lepidoptera · Family: Crambidae
Also called: Bog Lygropia
The bog lygropia moth belongs to the Crambidae family. Its wingspan is about 17 mm. It lives in wet or boggy areas across many U.S. states and parts of Canada, and adults fly from April through October.
Source: Wikipedia
How to recognize it
Lygropia rivulalis is a moth in the family Crambidae.
Source: Wikipedia
Size
The wingspan measures roughly 17 mm.
Source: Wikipedia
Where it lives
It is found in boggy or otherwise wet habitats.
Source: Wikipedia
When you see it
Adults are on the wing from April to October.
Source: Wikipedia
Where it comes from
It occurs in North America, recorded from many U.S. states and Canadian provinces.
Source: Wikipedia
Where it is found in the US
Recorded in 36 of 51 states and DC. Most records: Michigan, Ohio, Wisconsin, Illinois, Vermont, New York, Indiana, Minnesota.
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
Where does the bog lygropia moth live?
It lives in wet or boggy areas across many U.S. states and parts of Canada.
Source: Wikipedia
Same family (Crambidae)
Box Tree MothCydalima perspectalisDamages trees, gardens or crops
Celery Leaftier MothUdea rubigalisDamages trees, gardens or crops
Elegant Grass-veneerMicrocrambus elegans
Hawaiian Beet Webworm MothSpoladea recurvalisDamages trees, gardens or crops
Garden Grass-veneerChrysoteuchia culmellaDamages trees, gardens or crops
Bluegrass Webworm MothParapediasia teterrellusDamages trees, gardens or cropsSources
- Wikipedia: https://en.wikipedia.org/wiki/Lygropia_rivulalis
Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia
Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-23.