Eyetail Moth: All You Need to Know in a Nutshell!

The Eyetail Moth, also known as the Cecropia Moth, is the largest native moth species in North America. Found mostly in hardwood forests east of the Rocky Mountains, these nocturnal creatures boast a wing span of 5-7 inches as they flaunt their intricate orange, black, and brown wings adorned with eyespots and commas. With a fuzzy, orange head, the Eyetail Moth is a sight to behold and a fascinating subject for those interested in learning more about moths and the natural world.

One of the key distinctions between moths and butterflies is their antennae. While a butterfly’s antennae are club-shaped with a long shaft and a bulb at the end, a moth’s antennae resemble feathers or have a saw-edged appearance. The Eyetail Moth displays these feather-like antennae, setting it apart from its butterfly relatives.

Some interesting aspects of the Eyetail Moth include:

  • Largest native moth in North America
  • Intricate wing patterns
  • Nocturnal and short-lived as adults
  • Found in hardwood forests east of the Rocky Mountains

With such unique features, the Eyetail Moth is an exceptional creature worth exploring and understanding. Its beauty and rarity are sure to capture the curiosity of nature enthusiasts and amateur entomologists alike.

Eyetail Moth Overview

Moths and Butterflies

Moths and butterflies are similar creatures but can be distinguished by their antennae. Moths have feathery or saw-edged antennae, while butterflies have club-shaped antennae with a long shaft and a bulb at the end.

Wingspan and Tail

Eyetail moths, like many other moths, can have varying wingspans depending on the species. For example, Hawk moths or Sphinx moths (Sphingidae) are known for their long narrow wings and thick bodies. These moths are fast flyers and often highly aerobatic.

Furry Appearance

Moths, such as the Eastern Tent Caterpillar Moth, often have a furry appearance. They have thick, long scales that contribute to this furry look. Both male and female moths have feathery antennae.

Nocturnal or Diurnal

While most moths are nocturnal, some species can be active during the day (diurnal). The activity pattern of the Eyetail Moth may vary depending on the specific species and their environment.

Comparison between Moths and Butterflies:

Feature Moths Butterflies
Antennae Feathery or saw-edged Club-shaped with a bulb end
Activity Mostly nocturnal Diurnal
Appearance Generally furry Smooth, less furry

Features of Eyetail Moth:

  • Feathery or saw-edged antennae
  • Wingspan can vary depending on species
  • Furry appearance
  • Can be nocturnal or diurnal

KeyPressive characteristics of Eyetail Moth:

  • Thick, long scales on their bodies
  • Feathery antennae in both males and females
  • May have unique tail-like extensions on their wings

Eyetail Moth Life Cycle

Eggs and Hatching

Eyetail moth eggs are laid on the host plant in clusters. Key features of the eggs include:

  • Tiny and spherical
  • Changing color from white to darker shades as they approach hatching

Typically, eggs hatch within 2-3 weeks. The time varies depending on temperature and environmental conditions.

Larvae and Caterpillars

Eyetail moth larvae, or caterpillars, undergo several stages of growth, known as instars. Important characteristics at this stage are:

  • Initial translucent appearance
  • Development of distinct patterns and colors as they grow
  • Feeding on host plants, causing potential damages

Pupation and Mating

As the larvae reach their final stage, they undergo pupation. Pupation involves:

  • Enclosing themselves in a cocoon
  • Transforming into adult moths within the cocoon

Adult moths emerge from the cocoon for mating. Some key aspects of mating are:

  • Males using pheromones to locate females
  • Mating taking place during night hours
  • Females laying their eggs shortly after mating

Comparison Table:

Stage Duration Key Characteristics
Eggs 2-3 weeks Tiny, spherical, color-changing
Caterpillars Varies with growth Patterns, coloration, feeding
Pupation/Mating Depends on species Cocoon formation, pheromone usage

In summary, the Eyetail moth life cycle is composed of three main stages (eggs, caterpillars, and pupation/mating) with key features and durations showcased in the provided table.

Habitat and Behavior

United States Distribution

The Eyetail Moth is found across various regions in the United States. Some examples include:

  • North America
  • Midwest
  • Northeast

Garden and Flowers

Eyetail Moths are attracted to gardens with colorful flowers. They are known to frequent:

  • Roses
  • Lilies
  • Lavender

These moths help in pollinating the flowers they visit.

Light Source Attraction

Moths, including the Eyetail Moth, are attracted to light sources at night, such as:

  • Porch lights
  • Garden lamps
  • Streetlights

It is currently unknown why they’re attracted to light sources, but it is a common behavior among these insects.

Diet and Predators

Feeding Habits

The Eyetail Moth, like many other moths, primarily feeds on nectar from flowers during its adult stage. Their proboscis, a long, tube-like mouthpart, enables them to reach the nectar at the base of flowers. Some common plants they are attracted to include:

  • Milkweeds
  • Phlox
  • Goldenrods

Natural Predators

Eyetail Moths face several natural predators, such as:

  • Ants: Prey on moth eggs and larvae
  • Spiders: Capture moths in their webs
  • Bats: Hunt moths during their night-time flights

Predator vs. Eyetail Moth Comparison Table

Predator Hunting Method Prey Stage
Ants Foraging on plants Eggs and Larvae
Spiders Webs or ambush tactics Adults
Bats Aerial hunting at night Adults

In short, Eyetail Moths have various feeding habits and face numerous natural predators, such as ants, spiders, and bats. Adult moths mainly feed on nectar using their proboscis, while their predators employ different methods like foraging, webs, or aerial hunting to catch them.

Identification and Patterns


The Eyetail Moth exhibits a unique and distinct coloration pattern. This moth typically has:

  • A base color that ranges between shades of brown, gray, or sometimes green
  • Striking eye-like spots on their wings

These features make it easy to identify the Eyetail Moth when compared to other moth species.

Eye-like Spots

The Eyetail Moth is known for its eye-like spots on its wings. These spots:

  • Can vary in size and shape depending on the species
  • Serve as a defense mechanism, deterring predators by mimicking the eyes of larger animals

This is an effective way for the Eyetail Moth to protect itself from potential threats.

Wing Scales

Eyetail Moths have unique wing scales that contribute to their appearance and identification. These wing scales:

  • Create a variety of patterns and textures on the moth’s wings
  • Help the moth blend in with its environment

These scales not only aid in identification but also serve as an additional layer of protection for the moth.

Eyetail Moth as Pests

Damage to Fabrics

Eyetail moths can cause significant damage to fabrics, especially those made of natural fibers like wool and cotton. They lay their eggs on the fabric, and the larvae feed on the fibers, creating holes and weak spots. Some examples of fabrics commonly affected include:

  • Clothing
  • Blankets
  • Carpeting
  • Upholstery

Pantry Moths and Food Storage

Pantry moths, a type of eyetail moth, can infest various food items, such as:

  • Grains
  • Cereals
  • Beans
  • Nuts
  • Flour
  • Dry animal food

These pests can contaminate the food and lead to spoilage, making it unfit for consumption.

Prevention and Pest Control

Preventing eyetail moth infestation can be achieved through various approaches, including:

  1. Proper food storage: Keep all food items, especially grains and cereals, in airtight containers to prevent moth infestation.
  2. Regular cleaning: Clean cupboards and wardrobes regularly and check for signs of moth larvae or damaged fabrics.
  3. Natural repellents: Use natural moth repellents like lavender or cedarwood to keep moths away.

For pest control, consider the following options:

  • Physical removal: If you find a small number of moths, you can manually remove them and their larvae.
  • White vinegar: Wipe down surfaces with white vinegar to help remove moth eggs and larvae.
  • Pesticides: If the infestation is severe, pesticide treatments might be necessary. Ensure you use products that are safe and specifically designed for dealing with fabric pests and pantry moths. It’s often best to consult a professional pest control service in such situations.

Here’s a comparison table of prevention and pest control methods:

Method Pros Cons
Proper food storage Keeps moths from infesting the food Might not eliminate existing infestations
Regular cleaning Helps identify and address infestations early Time-consuming and requires consistent effort
Natural repellents Safe and environmentally friendly May not be as effective as other methods
Physical removal Immediate impact; no chemicals needed Not practical for large infestations
White vinegar Non-toxic, inexpensive, and readily available May not be effective against severe infestations
Pesticides Effective in eliminating large infestations Could be toxic if not used properly; professional help might be necessary

Health Considerations

Allergies and Prevention

Some people may experience allergic reactions to moth larvae, especially the browntail moth caterpillar. This is known as “Lepidopterism” and may cause skin and systemic reactions upon contact with the caterpillar or butterfly1. To prevent these allergies:

  • Avoid direct contact with moth larvae
  • Wear protective clothing when in areas with high moth populations
  • Regularly clean outdoor spaces to remove larvae nests

Example: The Maine CDC provides information about browntail moth health risks and prevention methods.

Treatment Options

If you do experience an allergic reaction, treatment options can include:

  • Topical creams to reduce itching and inflammation
  • Oral antihistamines for allergic reactions
  • In severe cases, seeking medical attention may be necessary

Pros and Cons of Oral Antihistamines

Pros Cons
Effective in relieving symptoms May cause drowsiness
Readily available Some people may not tolerate well

Tips for managing moth-related allergies

  • Vacuum regularly to remove moth larvae and dust
  • Keep windows and doors closed during high moth activity
  • Use insect-repellent products

Celebrating Moths

National Moth Week

National Moth Week is a global event that encourages people to appreciate and learn about the incredible diversity of moths. This celebration takes place annually during the last full week of July. Participants engage in various activities such as moth-watching, hosting moth-themed events, and sharing their findings on social media with the hashtag mothphotography.

Some interesting facts about moths:

  • Over 160,000 species worldwide
  • Can vary in size from 2mm to 30cm
  • Can be found in diverse habitats

Moth and Butterfly Identification

Moths and butterflies often confuse people due to their similarities. However, there are some key differences that can help identify them:


  • Generally fly at night
  • Hold their wings flat when resting
  • Have feathery antennae


  • Usually fly during the day
  • Hold their wings upright when resting
  • Have club-shaped antennae
Feature Moth Butterfly
Active time Night Day
Wings at rest Flat Upright
Antennae Feathery Club-shaped

Remember to be gentle and respectful when observing moths and butterflies, and consider participating in National Moth Week to learn more about these fascinating creatures.

Contribution to Ecosystem

Pollination Roles

Eyetail moths play a role in pollination within their ecosystem. They assist in:

  • Moving pollen between flowers
  • Helping plants reproduce

This process is essential for the growth of fruit and seeds, like sugar, providing:

  • Food for animals
  • Continued plant life

Part of Food Chain

The Eyetail moth is also an essential component of its ecosystem’s food chain. The moth’s life stages include:

  • Caterpillar: Serves as food for smaller predators (birds, small mammals)
  • Adult moth: Serves as prey for larger predators (bats, larger birds)

These relationships help maintain a balanced ecosystem by controlling the moth population and providing energy to other species in the food chain.


  1. Caterpillar and Moth Bites – StatPearls – NCBI Bookshelf

Reader Emails

Over the years, our website, whatsthatbug.com has received hundreds of letters and some interesting images asking us about these insects. Scroll down to have a look at some of them.

Letter 1 – Eyetail Moth from Costa Rica


Costa Rican Butterflies
June 22, 2010
Dear Bugman,
I recently went on an educational trip to Costa Rica. While there, I saw many different species of butterflies but, now that i’m home, i haven’t been able to figure out the species or even what type of butterflies i had seen. This is a major issue considering the fact that i now must do a project on the different invertebrates i saw while there! The first one was spotted in my shower at a hotel in Arenal. It was hanging from the ceiling and the tear drop shaped “tails” were slightly metalic. I would estimate that it was around 3-4 inches across. The second, was spotted in Tortuguero. it was very small, only about 1.5 inches across and flew rather quickly. And the third we saw in a Butterfly garden. There were several that kept landing on us and they were about… 2 inches across. Thanks so much for your help!
Amanda K.
Costa Rica (Arenal, Tortuguero)

Eyetail Moth

Hi Amanda,
We have a bit of an ethical problem doing too many identifications for your project, but we will assist with your first image.  Nothus lunus, the Eyetail Moth in the family Sematuridae, is frequently mistaken for a butterfly.  We posted a photo of a male Eyetail Moth from Costa Rica last October, and your specimen is a female.  The female is characterized by the white stripes on her wings.  The excellent Hétérocères de Guyane Française website has a great comparison image of the male and female Eyetail Moth.

WOW great thanks so much! that litterally has been keeping me up at night because it was a beautiful moth! 🙂 and i totally understand the whole ethics thing! 😉 these were just the ones i was confused on and even this one ID will really make me feel better about the project! thanks again for the help!

Actually Amanda, we also identified and posted your photo of a Cattleheart Butterfly in the genus Paredes.

Letter 2 – Bug of the Month December 2019: Mania Moth from Brazil


Subject:  Moth
Geographic location of the bug:  Manaus Brazil
Date: 12/09/2019
Time: 07:51 AM EDT
Your letter to the bugman:  Hi! Hope you´re still in buisnes. I received some help from you 2016.
No 1 This Moth was photographed in Manaus Brazil 2019-10-03, in the graden of hotel Tropic(al). I have come as far as “it is probably” a Notodontidae.
No 2: This butterfly was photographed on a forest road along Rio Aripuana, about 450 km upstream from Manaus 2019-10-06. Is this really a Merpesia?
No 3: Photographed along Rio Arapuana Brazil 2019-10-10 in forest flooded 6 months a year. Fuligoridae family. I have more photos of this creature, but this is the clarest one. Is it possible to get any further? (- Would love it).
Best regards
How you want your letter signed:  Stefan

Mania Moth

Dear Stefan,
We are going to attempt to handle your identification requests one at a time.  Your second image is actually a moth, not a butterfly.  We are confident it is a Mania Moth,
Mania empedocles, from the family Sematuridae which we identified on Project Noah.  The species is also pictured on iNaturalist.  According to a FlickR posting:  “Mainly, the family is made of nocturnal and crepuscular individuals. There are 35 species in the family Sematuridae; a single genus with one species occurs in Africa (as far as my knowledge goes, so this requires confirmation) whilst the others occur in the Neotropical zone. The wingspan of adults in this family can go from 42 to 100mm and their body is robust in most species. The wings are triangular; posterior wings present a tail-like projection with oceli designs.”

Dear Daniel!
Thank you for the Id of the id. of the Mania Moth.
Linnaeus said: “Knowledge without names is worth nothing”
Now about 250 years later, I can extend his statement by feeling and saying: “Sightings without names are worth nothing”
The bugs I´m sending you currently are from a mammal- and bird-trip.
In Sweden, my home country I have seen all the Nymphalides and most of the Moths and Hawk-moths. When I´ve been out and have done my best to determine what I have seen, every addition to that is a bonus, for which I´m grateful.
I have in mind to send you two more images. I´ll send them to your Bugman page but give you some background here. The target species on the first image I´m sending you is a Heraclides (Papilio) anchisiades,  Id´ed by Jorge Bizarro, one of the top people on Nymphalides and Moths and Hawk Moths in tropical America. Both the yellow ones and white ones on the same photo I have not even tried. In Pantanal 2012 I identified Phoebis sennae, but there were probably several species on these river banks. It´ll be interesting to see if you can id any of the yellow ones and white ones on this image.
The second image i´ll present on your Bugman-page.
Best regards


  • 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.

  • 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.

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