American Snout

libytheana carinenta

The American Snout (Libytheana carinenta) is a remarkable and uniquely shaped butterfly best known for its prominent, elongated mouthparts that form a distinct "snout." Belonging to the brush-footed butterfly family, this species is a master of disguise, utilizing complex wing patterns and shapes to mimic dead leaves perfectly. Beyond its intriguing appearance, the American Snout is famous for its spectacular and unpredictable mass migrations. During certain years, population explosions triggered by specific weather patterns lead to millions of these butterflies taking to the skies in dark, cloud-like swarms. These breathtaking flights are a testament to the dynamic nature of insect life cycles and remain one of the most astonishing spectacles in the natural world. Can you find a American Snout? Log it and verify its identity with the Snappit app.

Habitat: Found in open woodlands, brushy areas, and forest edges, particularly in regions where hackberry trees are abundant.

Appearance

This medium-sized butterfly has a wingspan of 3.5 to 5 centimeters. The most defining feature is its long, beak-like snout, which is composed of elongated labial palpi protruding from its head. The upper side of the wings is boldly patterned in black or dark brown with striking orange patches and white spots near the tips of the forewings. The underside of the wings is a mottled, dull brown and gray that flawlessly resembles a dried, dead leaf, complete with a dark line resembling a leaf vein. The forewings feature a distinctive squared-off tip, further enhancing its leafy disguise when resting.

KingdomAnimaliaPhylumArthropodaClassInsectaOrderLepidopteraFamilyNymphalidaeGenusLibytheana

American Snout

Interesting facts

During massive population booms in Texas, swarms of American Snouts have been so dense that they block out the sun and cause streetlights to turn on during the day.

The snout is not actually a nose, but rather highly elongated labial palps, which are mouthparts covered in sensory receptors.

When frightened, the American Snout will often drop out of the air and fall directly into the leaf litter below, playing dead to become completely invisible to predators.

Special abilities

When resting with its wings closed, the butterfly perfectly mimics a dry leaf, utilizing its squared forewing tips and mottled brown underside to hide from predators.

Capable of forming massive migratory swarms in late summer, with millions of individuals traveling together in numbers dense enough to obscure the sun.

Possesses specially adapted, highly elongated mouthparts that form a snout which helps break up its outline and enhances its dead-leaf camouflage.

Measurements & details

Length: 1-2 cm
Wingspan: 3-5 cm
Weight: 0.0001-0.0003 kg
Lifespan: 0 years
Top Speed: 20 km/h
Clutch Size: 50-200
Incubation: 4-8 days
Migration Distance: 800 km

Diet & Feeding

Caterpillars exclusively consume the foliage of hackberry trees, while adult butterflies feed on nectar from various flowers and extract minerals from damp soil.

Age differences: Larvae are obligate leaf-eaters (folivores), whereas adults shift entirely to a liquid diet of nectar and dissolved minerals.

Primary Foods

Hackberry leaves
Aster nectar
Goldenrod nectar
Dogwood nectar
Mineral-rich mud

Foraging Method

Foraging

Ecological connections

host plant

Common Hackberry

Celtis occidentalis

Primary host plant for caterpillars.

eaten by

Eastern Bluebird

Sialia sialis

Preys on adult butterflies and caterpillars.

mutualism

Tall Goldenrod

Solidago altissima

Source of nectar for adult butterflies during late summer migrations.

Traits

No trait badges are assigned for this object yet.

Also known as

No aliases listed yet.

Collections

Collections for this object will appear here as more themes are added.

Safety

Danger

1/5 · Very low

No special safety notes yet.

Frequently Asked Questions

How to identify American Snout?

The easiest way to identify American Snout is to use the Snappit nature identifier app.

How long is American Snout?

1-2 cm

What is American Snout's wingspan?

3-5 cm

How much does American Snout weigh?

0.0001-0.0003 kg

How long does American Snout live?

0 years

How fast can American Snout move?

20 km/h

What does American Snout eat?

Caterpillars exclusively consume the foliage of hackberry trees, while adult butterflies feed on nectar from various flowers and extract minerals from damp soil.

Where is American Snout usually found?

Found in open woodlands, brushy areas, and forest edges, particularly in regions where hackberry trees are abundant.