Bug FAQGarden Webworm Moth
Achyra rantalis · Order: Lepidoptera · Family: Crambidae
Also called: garden webworm
Source: Wikipedia
The garden webworm moth has a wingspan of about 0.7 to 0.9 inches (17 to 23 mm). It lives in fields and gardens across much of North America, from Canada down to Florida and Mexico. Its larvae eat leaves of many low-growing plants such as alfalfa, beans, corn, cotton, peas and strawberries, and up to four generations can appear each year in southern areas.
Source: Wikipedia
Size
The adult’s wingspan ranges from 17 to 23 mm (about 0.67 to 0.91 in).
Source: Wikipedia
Where it lives
It is typically found in fields and garden habitats.
Source: Wikipedia
Life cycle
In southern parts of its range it can produce up to four generations each year.
Source: Wikipedia
Where it comes from
Its range includes North America from Maine and southern Quebec/Ontario down to Florida and Mexico.
Source: Wikipedia
Where it is found in the US
Recorded in 48 of 51 states and DC. Most records: Texas, Oklahoma, Florida, Kansas, Massachusetts, Illinois, Missouri, California.
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
Does the garden webworm moth damage crops?
Yes, its larvae eat the leaves of many cultivated plants such as alfalfa, beans, corn, cotton, peas and strawberries.
Source: Wikipedia
How many generations can occur in a year?
In the southern part of its range up to four generations may develop each year.
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/Achyra_rantalis
Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia
Text written 2026-10-22 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.