Eyed Silkmoth: All You Need to Know for a Fascinating Discovery

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The Eyed Silkmoth is a fascinating species of moth, known for its distinct appearance and captivating life cycle. These medium-sized moths boast a unique combination of tan and cream-colored wings, beautifully contrasted by a large black eyespot surrounded by yellow on the top surface of their pink inner-margined hindwing. With a wingspan reaching up to 3.5 inches, the Louisiana Eyed Silkmoth is an impressive sight to behold, especially when eliminating the much more common io moth (source).

As a member of the Giant Silk Moths family (Saturnidae), they share certain characteristics with other members, such as large size and vibrant wing patterns. For example, the related Polyphemus Moth exhibits a single eyespot in each hind wing, resembling the one-eyed Cyclops from Greek mythology (source). The captivating features of the Eyed Silkmoth have made them a popular topic among both entomologists and nature enthusiasts alike.

Eyed Silkmoth Overview

Scientific Classification

  • Kingdom: Animalia
  • Phylum: Arthropoda
  • Class: Insecta
  • Order: Lepidoptera
  • Family: Saturniidae
  • Subfamily: Hemileucinae
  • Genus: Antheraea
  • Species: Polyphemus
  • Binomial name: Antheraea Polyphemus (Cramer)

Physical Characteristics

The Eyed Silkmoth, Antheraea Polyphemus, is a medium-sized moth native to North America. It has a few distinguishing characteristics:

  • Tan and cream-colored wings
  • Large black eyespots with yellow surrounding on hindwings
  • Pink inner-margined hindwings
  • Wingspan of up to 3.5 inches

Behavior and Habitat

The Eyed Silkmoth belongs to the family Saturniidae, which includes various large silk moths. These moths are known for their attractive features and unique wing patterns. One example is the Louisiana Eyed Silkmoth, which has a similar appearance but with distinct black eyespots on its hindwing source.

The Eyed Silkmoth is often found in woodlands and wetland areas throughout its geographic range. It is a nocturnal species, meaning it is most active during the night.

Comparison Table: Eyed Silkmoth vs Io Moth

Feature Eyed Silkmoth Io Moth
Wingspan Up to 3.5 inches Slightly larger
Eyespots Large, black with yellow Smaller, colorful
Terminology Antheraea Polyphemus Automeris io

Life Cycle and Development

Eggs

The life cycle of the Eyed Silkmoth begins with tiny, round eggs laid by the adult female moth. These eggs are typically found on leaves and plants, providing an ideal environment for the developing embryos.

  • Colors: yellow to white
  • Size: about 1.5 mm in diameter

Caterpillar and Larva

Once the eggs hatch, they give way to the caterpillar stage. During this stage, the Eyed Silkmoth larvae, also known as caterpillars, feed voraciously on their preferred host plants. They continuously grow and molt, shedding their skin multiple times.

Larva features:

  • Colors: green or yellow with black markings
  • Size: can reach up to 10 cm in length before pupation
  • Unique markings: large, bold spots that resemble eyes

As the Eyed Silkmoth caterpillar keeps growing, it becomes quite impressive in size and markings.

Cocoon and Adult

Next comes the cocoon stage, where the caterpillar spins a silk cocoon to protect itself during its metamorphosis process. Inside the cocoon, the larva undergoes a unique transformation to become an adult moth.

Cocoon characteristics:

  • Shape: oval
  • Size: about 4 cm in length
  • Colors: yellowish-white

Once the transformation is complete, the adult Eyed Silkmoth emerges from the cocoon. It needs a few hours for its wings to dry and harden before it can fly. Adult moths are nocturnal, active during the night to mate and lay eggs, completing the life cycle.

Adult moth features:

  • Wingspan: 5 – 15 cm depending on species
  • Wing pattern: intricate design with an “eye” on each wing
  • Lifespan: only about 1-2 weeks

Do keep in mind that these characteristics may vary slightly among different Eyed Silkmoth species. Overall, these moths display a fascinating life cycle, showcasing their captivating development from eggs to fully mature adults.

Distribution and Range

The Eyed Silkmoth can be found primarily in North America. Their range extends from the United States to Louisiana and New Mexico.

These moths prefer a variety of habitats. For example, they can be found in wooded areas and grasslands.

Some characteristics of the Eyed Silkmoth include:

  • Brownish-grey wings with large, eye-like spots
  • Wingspan of 3-6 inches
  • Active during night time

Comparing the Eyed Silkmoth to other silkmoths, here is a table highlighting their differences:

Feature Eyed Silkmoth Other Silkmoths
Range North America Global
Habitat Wooded areas, grasslands Forests, grasslands
Wingspan 3-6 inches Varies

With their unique eye-like spots and adaptability to different habitats, the Eyed Silkmoth remains an interesting member of the silkmoth family.

Feeding and Host Plants

The Eyed Silkmoth primarily feeds on various species of trees as caterpillars. Below are some common host plants for this moth species in bullet points:

  • Oak (Quercus)
  • Willow (Salix)
  • Maple (Acer)
  • Beech (Fagus)
  • Honey locust
  • Walnut
  • Pear
  • Cherry (Prunus)

The silkmoths show preferences throughout different tree species. Let’s compare the differences between oak and willows as host plants for the Eyed Silkmoth:

Host Plants Oak (Quercus) Willow (Salix)
Texture Rough bark Smooth, thin bark
Leaves Broad, lobed Narrow, elongated
Growth rate Slow to moderate Rapid

The caterpillars usually feed during the day. They can thrive on different host plants, but it’s essential to provide them with a suitable and safe environment. Here’s an example of raising the caterpillars on oak and cherry respectively:

  • For oak, place caterpillars on young oak leaves, and make sure their environment is clean and free of pesticides.
  • For cherry, caterpillars can feed on the leaves of cherry trees, but early stages may require softer leaves or even flowers.

In summary, the Eyed Silkmoth’s caterpillars feed on a variety of host plants, including oak, willow, maple, and cherry, among others. Offering them a safe and suitable environment will ensure their healthy growth and development.

Predators and Survival Strategies

The Eyed Silkmoth, or Automeris iris, is a fascinating species of moth belonging to the Automeris genus. Here, we’ll explore its predators and survival strategies, with a focus on the following relevant entities:

  • Predators
  • Automeris iris
  • Iris Eyed Silkmoth
  • Automeris iris iris
  • Automeris species
  • Polyphagous

Predators of Automeris iris

The Eyed Silkmoth has many predators, including:

  • Birds
  • Bats
  • Insect-eating mammals
  • Some reptiles

Survival Strategies

To fend off predators, Automeris iris relies on:

  • Eyespots
  • Camouflage

Eyespots on their wings give them their distinctive look and play a crucial role in their survival. When threatened, the moth reveals the eyespots to create an illusion of a larger, menacing creature.

Camouflage is another tactic used by the Iris Eyed Silkmoth. They blend in with their surroundings, making it difficult for predators to locate them.

Polyphagous Nature

Automeris iris is a polyphagous species, meaning it has a diverse diet, which helps in its survival. This flexible feeding behavior allows them to adapt to various environments and increases their chances of evading predators.

Notable Relatives

Polyphemus Moth

The Polyphemus Moth is a large species in the silkmoth family Saturniidae. Its wingspan ranges from 3.9 to 5.9 inches (10 to 15 cm). Notable features include:

  • Large eyespots on hindwings
  • Mottled brown and grey coloration

For more information, check the comparative transcriptome analyses on silk glands of six silkmoth species.

Hyalophora Cecropia

The Hyalophora Cecropia is North America’s largest native moth. Characteristics include:

  • Wingspan of 5.9 to 7.1 inches (15 to 18 cm)
  • Vivid color patterns
  • Reddish-brown wing borders

Find more information about giant silk moths at the Field Station resource.

Callosamia Promethea

The Callosamia Promethea, also known as the Promethea Moth, is an attractive species. Features are:

  • Brownish-black wings
  • White or yellow crescent-shaped markings

Actias Luna

The Actias Luna moth is an easily recognizable species due to:

  • Green coloration
  • Long, curvy tails

Check this Field Station article for more information about the Giant Silk Moths (Family Saturnidae).

Zephyr Eyed Silkmoth

The Zephyr Eyed Silkmoth (Automeris zephyria) is a less known species. Characteristics include:

  • Eyespots on hindwings
  • Yellow and brown coloring
Species Wingspan Coloration Eyespots
Polyphemus Moth 3.9 to 5.9 inches Mottled brown and grey Yes
Hyalophora Cecropia 5.9 to 7.1 inches Reddish-brown borders No
Callosamia Promethea Varies Brownish-black No
Actias Luna Varies Green No
Zephyr Eyed Silkmoth Varies Yellow and brown Yes

In this section, we’ve provided a brief overview of some notable relatives of the Eyed Silkmoth, including the Polyphemus Moth, Hyalophora Cecropia, Callosamia Promethea, Actias Luna, and Zephyr Eyed Silkmoth.

Resources

Literature and Science

The eyed silkmoth is a fascinating insect with unique features. To learn more about this moth and its characteristics, consider looking into scientific literature and research articles:

  • Louisiana Department of Wildlife and Fisheries offers information on the Louisiana eyed silkmoth, its appearance, and habitat.
  • Scientific publications and journals that focus on entomology can provide more in-depth information about this moth species.

Websites and Links

Several websites offer valuable information and resources on the eyed silkmoth:

  • BugGuide is an excellent resource for insect enthusiasts.
  • Online forums and discussion boards related to entomology can provide helpful insights and tips on studying the distinctive features of eyed silkmoths.

Additional Information

In your quest for knowledge on the eyed silkmoth, you might find these resources helpful:

  • Local lists and groups dedicated to entomology or moth watching.
  • Programs and organizations that focus on moth conservation may be excellent sources of information.
  • For further assistance, consider reaching out to entomology experts at universities or research institutes.

Remember to always verify the accuracy of information and use reliable sources when studying unique insects like the eyed silkmoth.

 

Zephyr Eyed Silkmoth Caterpillar

 

 

 

 

 

 

Cecrops Eyed Silkmoth Caterpillar

 

 

 

 

 

 

 

 

 

Zephyr Eyed Silkmoth Caterpillar: Defensive Posture

 

Zephyr Eyed Silkmoth Caterpillar

Authors

  • Bugman

    Bugman aka Daniel Marlos has been identifying bugs since 1999. whatsthatbug.com is his passion project and it has helped millions of readers identify the bug that has been bugging them for over two decades. You can reach out to him through our Contact Page.

    View all posts
  • Piyushi Dhir

    Piyushi is a nature lover, blogger and traveler at heart. She lives in beautiful Canada with her family. Piyushi is an animal lover and loves to write about all creatures.

    View all posts
Tags: Silkmoths

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6 Comments. Leave new

  • Fabulous!

    Reply
  • Sally Dodds
    June 26, 2016 9:55 pm

    Saw one of these beauties on 6/26/16 in the Smokey Bear and Sacramento district of the Lincoln National Forest at Ruidoso, NM (Sam Tobias Campground site #3).

    Reply
  • Found one on my apple tree in High Rolls New Mexico!

    Reply
  • I found one in Morelia, Michacoan next to the old Hospital Civil. At least looks very similar. It is very sticky or has some type of Velcro ability

    Reply
  • I have found tens of these in my honey locusts, golden rain trees, and trileaf sumac, eating all the leaves. I am having to remove and kill them as they have eaten so many leaves of so many plants

    Reply
  • I just found what I believe to be the same species on the campus of Yavapai College in Prescott Arizona.

    I definitely made the mistake of saying, “those spines are probably bristles like a woolly bear / just for show” and my finger tips felt numb/stung for the next day and a half.

    Reply

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