Bug FAQGray-edged Snout
Hypena madefactalis · Order: Lepidoptera · Family: Erebidae
Also called: Gray-edged Bomolocha, Gray-edged Bomolocha Moth, Gray-edged Hypena
Source: Wikipedia
Gray-edged Snout is a moth with a wingspan of about 25 to 32 mm. There are at least two generations each year.
Source: Wikipedia
How to recognize it
Its scientific name is Hypena madefactalis and it belongs to the family Erebidae.
Source: Wikipedia
Size
The adult’s wingspan ranges from 25 to 32 mm.
Source: Wikipedia
Where it lives
It occurs from extreme southern Canada down to Georgia and Texas.
Source: Wikipedia
What it eats
Caterpillars eat the leaves of walnut trees, especially black walnut and butternut, and can also be raised on shagbark hickory.
Source: Wikipedia
Life cycle
The species produces at least two generations each year.
Source: Wikipedia
When you see it
Adults are on the wing from April through August in southern areas and from May through August farther north.
Source: Wikipedia
Where it comes from
Its range includes the eastern United States and southern Canada.
Source: Wikipedia
Lookalikes
It is a member of the family Erebidae, the same family noted for the gray-edged hypena.
Source: Wikipedia
Where it is found in the US
Recorded in 36 of 51 states and DC. Most records: Ohio, Maryland, Pennsylvania, Virginia, Illinois, Michigan, North Carolina, New York.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in North America; native in Canada; native in United States. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Questions people ask
What trees do the larvae damage?
The caterpillars feed on walnut trees, especially black walnut and butternut, and can also eat shagbark hickory.
Source: Wikipedia
Same family (Erebidae)
Spongy MothLymantria disparDamages trees, gardens or crops
Fall Webworm MothHyphantria cuneaDamages trees, gardens or crops
Brown-tail MothEuproctis chrysorrhoeaCan irritate skin
Isabella Tiger MothPyrrharctia isabella
Virginian Tiger MothSpilosoma virginicaCan irritate skin
Salt Marsh MothEstigmene acreaSources
- Wikipedia: https://en.wikipedia.org/wiki/Hypena_madefactalis
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-23.