Bug FAQEight-barred Lygropia Moth
Lygropia octonalis · Order: Lepidoptera · Family: Crambidae
The eight-barred lygropia moth has forewings about 7.5 to 8.5 mm long and belongs to the snout-moth family Crambidae. It lives in low-elevation arid areas across central and southern California to Texas and in several other U.S. states. Adults fly from late March through October, and the larvae feed on the plant Heliotropium curassavicum.
Source: Wikipedia
Size
The forewing length ranges from 7.5 to 8.5 mm.
Source: Wikipedia
Where it lives
It inhabits low-elevation arid regions.
Source: Wikipedia
What it eats
Larvae have been observed feeding on Heliotropium curassavicum.
Source: Wikipedia
Life cycle
Adults are on the wing from late March to October.
Source: Wikipedia
When you see it
The flight period extends from late March through October.
Source: Wikipedia
Where it is found in the US
Recorded in 7 of 51 states and DC. Most records: California, Texas, Tennessee, New Mexico, Arizona, Kansas, Oklahoma.
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
Questions people ask
When are adult eight-barred lygropia moths active?
Adults can be seen flying from late March until October.
Source: Wikipedia
What do the caterpillars eat?
The larvae feed on the plant Heliotropium curassavicum.
Source: Wikipedia
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/Conchylodes_octonalis
Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia
Text written 2026-10-29 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-29.