American Snout: All You Need to Know in a Quick Guide

The American Snout butterfly, scientifically known as Libytheana carinenta, is a small yet fascinating creature. Their distinct elongated labial palps (mouthparts) are reminiscent of a pronounced snout, hence the common name.

They exhibit unique patterns on their wings. The dorsal wing pattern showcases a vibrant orange hue with wide dark borders and white spots.

When the wings are viewed from below, a mottled brown and violet pattern appears on perched specimens ¹.

These captivating butterflies are not only known for their appearance but also for their migratory behaviors. In certain years, substantial population increases may result in large swarms traversing the region ².

American Snout Overview

Scientific Name: Libytheana Carinenta

Family: Nymphalidae

Belonging to the family Nymphalidae, the American Snout is just one of many unique butterflies in this group.

Size and Description

• Wingspan: 1¼ – 2 inches (3.5 – 5 cm)
• Color: Brown, orange, and white spots on the upper side; mottled or smooth violet-gray underside

Easily recognizable, the American Snout has elongated labial palps, forming a prominent snout.

Distribution: North America and Mexico

• Location: North America and Mexico
• Summer Residency: Found in Missouri during the summer

The American Snout can be spotted throughout North America and Mexico. In certain regions, this butterfly makes its appearance only during the summer months.

Appearance and Physical Features

Wings and Coloration

The American Snout butterfly has unique wings with specific characteristics:

• Wingspan: 1¼ – 2 inches (3.5 – 5 cm)
• Elongated forewings with squared-off wingtips
• Brown upperside
• Forewings: Orange base and inner margin, white spots on the outer half
• Hindwing underside: Mottled or smooth violet-gray

Antennae and Labial Palps

The American Snout also has distinct antennae and labial palps:

• Thin antennae with tiny clubs at their ends
• Long and extended forward palps, which form the characteristic “snout”

Dorsal Wing Pattern and Borders

The dorsal side of the American Snout features a unique wing pattern as well:

• Orange background color
• Wide dark borders with white spots
• Mottled brown and violet-gray wing edges when seen from below on perched butterflies

The American Snout is easy to identify due to its distinctive appearance, helped by these specific features.

Life Cycle and Development

Caterpillars

The American Snout butterfly’s life cycle begins with their caterpillars. These caterpillars have a dark green color and are adorned with yellow stripes, running lengthwise. They also possess various distinctive features such as:

• A raised thorax area, where tubercles and horns sprout.
• As they grow older, their tubercles become black and more prominent.

These caterpillars mainly feed on hackberry trees, which serve as their primary food source during this stage of development.

Pupae

Once the caterpillars have finished feeding and growing, they enter the pupal stage. The pupae are well-camouflaged, resembling a dead leaf or the petiole of a leaf. They typically exhibit the following characteristics:

• Brown coloration with hints of green
• Textured surface for better camouflage
• H3-shaped structure, allowing them to blend in easily with the environment

The pupae stage serves as the transitional phase, preparing the caterpillar to transform into an adult butterfly.

Adult Butterflies

After the pupal stage, the American Snout butterflies emerge as adults, featuring:

• Elongated forewings with squared-off wingtips
• Dorsal wing patterns in orange with wide dark borders and white spots
• Long, snout-like noses, due to the greatly elongated labial palps

These adult butterflies are relatively small and dull-colored compared to other butterfly species.

American Snout butterflies go through a complete life cycle, transforming from caterpillars to pupae and eventually emerging as adult butterflies.

Throughout this process, their physical appearance and habits change significantly, allowing them to adapt and thrive in their environments.

Habitat and Distribution

Hackberry Trees as Food Plants

The American Snout (Libytheana carinenta) is a unique butterfly with an elongated snout-like mouthpart. It mainly feeds on specific plants – the Hackberry trees of the Celtis species. Some examples include:

• Sugarberry (Celtis laevigata)
• Common Hackberry (Celtis occidentalis)

These trees provide a vital source of food for snout larvae, and consequently, the butterflies are often found in areas with abundant Hackberry trees.

Regional Distribution: Texas, Ozarks, Missouri

• Texas: The American Snout is a common summer resident in South Texas. In this region, the butterfly primarily feeds on Celtis species found in the area, such as Celtis laevigata and Celtis pallida.

• Ozarks: The Ozark region, spread across Missouri, Arkansas, and Oklahoma, also hosts the American Snout butterfly. The butterfly thrives in diverse woodland habitats and can easily locate Hackberry trees.

• Missouri: In Missouri, the American Snout is widespread during the summer months. Thanks to a variety of Celtis species like Celtis occidentalis and Celtis reticulata, this region provides a suitable habitat for the butterfly.

Comparison of Distribution in Texas, Ozarks, and Missouri:

In summary, the American Snout butterfly can be found in Texas, the Ozarks, and Missouri, where they rely on Hackberry trees for food and survival.

The presence of various Celtis species in these regions largely influences the distribution and habitation of this unique butterfly.

Behavior and Migration

Migratory Patterns

The American Snout is known for its fascinating migratory patterns. These butterflies are occasionally seen in mass migrations, forming groups that can stretch for miles.

The American Snout butterfly has one of the longest migration routes. Its migration is called a “chain migration”.

This means that the American Snout butterflies originating from the northern parts usually settle in Mexico for the winter only after the ones born in the southern parts migrate further south.

Key migratory features:

• Occasional mass migrations
• Group formations

Seasonal Changes: June

In June, American Snout butterflies are typically more active and are often seen in wooded areas near streams or rivers. This is a prime time for observing these unique butterflies.

Heavy Summer Rains

Heavy summer rains can trigger another shift in American Snout behavior. After a downpour, these butterflies are known to congregate in large numbers around damp, muddy areas, making the most of the temporarily available nutrients.

To summarize, the American Snout butterfly is an interesting species that exhibit unique migratory and seasonal behavior patterns. Keep an eye out for them during the summer months, especially in June and after heavy rains!

Predators and Threats

Common Predators

The American Snout employs natural camouflage to avoid predators. Caterpillars rest on the midribs of leaves, blending in with their surroundings, and adults perch on branches with wings folded, revealing only their drab gray colors¹.

Economic Importance

The American Snout has no significant economic importance². As a species of butterfly, it contributes to the ecosystem by aiding in plant pollination but does not have a direct impact on human economies.

Fun Facts and Additional Information

The American Snout (Libytheana carinenta) is a unique butterfly species. Here are a few fun facts and details about this intriguing creature:

• Part of the Brushfooted butterflies family, it’s the only snout butterfly species in North America.
• Its most striking feature is its elongated labial palps, resembling a long “snout.”
• American Snouts have a mottled brown and violet color pattern on their wings, which makes them stand out from other butterflies.

Unlike butterflies, moths are typically active at night, and their wings are held flat when at rest. However, both butterflies and moths along with skippers are classified under the order Lepidoptera.

Final Thoughts

Both a scientific study and observation by naturalists contribute to our understanding of these living jewels, but some information may not be entirely accurate.

To learn more about the American Snout and our diverse natural world, it’s recommended to consult professional advice from a local extension office, university, or an entomology expert.

Remember that understanding and appreciating the intricate details of the American Snout and other scale-winged insects can enhance our perception of the world around us.

 

 

 

 

 

 

 

Cloudless Sulphur	American Snouts