Bug FAQHook-streaked Grass-veneer
Crambus lathoniellus · Order: Lepidoptera · Family: Crambidae
The Hook-streaked Grass-veneer moth has a wingspan of about 20 mm. A distinctive white stripe runs from the wing base and ends sharply at an oblique dark line, with a tooth-shaped projection near the middle of the stripe. It lives in Europe and parts of Central and South-East Asia, and its larvae feed on various grasses, living in silken galleries among grass roots.
Source: Wikipedia
How to recognize it
A white longitudinal stripe starts at the wing base, ends sharply at an oblique dark line, and has a tooth-shaped outward projection near the centre.
Source: Wikipedia
Size
The adult’s wingspan is roughly 20 mm (0.79 in).
Source: Wikipedia
Where it lives
Larvae are greenish-grey or brownish-grey with darker dots, have a brown head, and live in silken galleries above or among grass roots.
Source: Wikipedia
What it eats
The caterpillars feed on a variety of grasses.
Source: Wikipedia
Life cycle
Adults are on the wing from May through September, depending on location.
Source: Wikipedia
When you see it
The flight period spans May to September, varying with region.
Source: Wikipedia
Where it comes from
It occurs in Europe, Central Asia, and South-East Asia.
Source: Wikipedia
More photos
Questions people ask
How can I recognize Hook-streaked Grass-veneer moths?
Look for a 20 mm wingspan and a white stripe from the wing base that ends at an oblique dark line, with a tooth-shaped outward projection near the middle of the stripe.
Source: Wikipedia
When are these moths active?
Adults fly from May to September, with exact timing depending on the local climate.
Source: Wikipedia
What do the larvae eat?
The caterpillars feed on various grasses, living in silken galleries among the roots.
Source: Wikipedia
Where is this species found?
It is native to Europe and parts of Central and South-East Asia.
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/Crambus_lathoniellus
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.