Bug FAQBaltimore Snout
Hypena baltimoralis · Order: Lepidoptera · Family: Erebidae
Also called: Baltimore Bomolocha, Baltimore Bomolocha Moth, Baltimore Hypena, Baltimore Snout Moth
Source: Wikipedia
Adult Baltimore Snout moths have a wingspan of about 26 to 32 mm and rest with a triangular shape formed by tucked hindwings. They are most often seen near deciduous forests in the eastern United States, from Wisconsin and Missouri down to Florida and Texas.
Source: Wikipedia
How to recognize it
The forewings are gray-brown; females may be lighter, and a large dark patch covers most of the outer wing area but does not reach the inner margin. When at rest the hindwings are tucked behind the forewings, giving the moth a triangular silhouette.
Source: Wikipedia
Where it lives
They are most commonly found in or near deciduous forests.
Source: Wikipedia
What it eats
The caterpillars feed on maple trees, especially red and silver maple.
Source: Wikipedia
When you see it
Flight season runs from April to October, varying by location.
Source: Wikipedia
Where it comes from
Their range covers the eastern United States, extending west and south to Wisconsin, Missouri, Florida, and Texas.
Source: Wikipedia
Where it is found in the US
Recorded in 37 of 51 states and DC. Most records: Massachusetts, Maryland, North Carolina, Pennsylvania, Connecticut, Vermont, Ohio, Virginia.
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
Can they harm garden plants?
Their larvae feed on maple trees, which can affect those trees in a garden or landscape.
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_baltimoralis
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-22 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.