Bug FAQCrambus cyrilellus
Crambus cyrilellus · Order: Lepidoptera · Family: Crambidae
The forewings measure about 9.5 to 11 mm in length. Adults have been seen flying in May and again in July.
Source: Wikipedia
Size
Forewing length ranges from 9.5 mm to 11 mm.
Source: Wikipedia
When you see it
Adults are on the wing in May and July.
Source: Wikipedia
Where it comes from
It is found in North America, specifically recorded in Arizona, Colorado, New Mexico, Texas and Utah.
Source: Wikipedia
Where it is found in the US
Recorded in 6 of 51 states and DC. Most records: Arizona, New Mexico, Colorado, Utah, Nebraska, Texas.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in North America; native in United States. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Same family (Crambidae)
Box Tree MothCydalima perspectalisDamages trees, gardens or crops
Celery Leaftier MothUdea rubigalis
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/Crambus_cyrilellus
Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia
Text written 2026-10-27 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-27.