Automeris io
In 3 days ~20% in a week ~50%
Automeris io, the Io moth (EYE-oh) or peacock moth, is a colorful North American moth in the family Saturniidae. The Io moth is also a member of the subfamily Hemileucinae. The name Io comes from Greek mythology in which Io was a mortal lover of Zeus. The Io moth ranges from the southeast corner of Manitoba and in the southern extremes of Ontario, Quebec, New Brunswick and Nova Scotia in Canada, and in the US it is found from Montana, North Dakota, South Dakota, Nebraska, Colorado, New Mexico, Texas, Utah, east of those states and down to the southern end of Florida. The species was first described by Johan Christian Fabricius in 1775.
Imagines (sexually mature, reproductive stage) have a wingspan of 2.5–3.5 inches (63–88 mm). This species is sexually dimorphic: males have bright yellow forewings, body, and legs, while females have reddish-brown to purple forewings, body, and legs. The males also have much bigger plumose (feathery) antennae than the females. Both males and females have one big black to bluish eyespot with some white in the center, on each hindwing. Some hybridizations have resulted in variations in these hindwing eyespots. Adults live 1–2 weeks... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Smoky Mountains National Park | 🇺🇸 United States | |
| 2 | Big Cypress National Preserve | 🇺🇸 United States | |
| 3 | Shenandoah National Park | 🇺🇸 United States | |
| 4 | Everglades National Park | 🇺🇸 United States | |
| 5 | Cumbres de Monterrey National Park | 🇲🇽 Mexico | |
| 6 | Congaree National Park | 🇺🇸 United States | |
| 7 | Merritt Island National Wildlife Refuge | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Miami | 🇺🇸 United States | |
| 2 | San Luis Potosí | 🇲🇽 México | |
| 3 | Austin | 🇺🇸 United States | |
| 4 | Houston | 🇺🇸 United States | |
| 5 | Monterrey | 🇲🇽 México | |
| 6 | Orlando | 🇺🇸 United States | |
| 7 | Philadelphia | 🇺🇸 United States | |
| 8 | San Antonio | 🇺🇸 United States | |
| 9 | Mexico City | 🇲🇽 México | |
| 10 | Dallas | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report an Io Moth sighting in Congaree National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 117th most-seen of the 145 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
October
In that month about 30% of wildlife watchers report an Io Moth in Congaree National Park on a given day, against under 5% in August and December–June, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Io Moth sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
6th of 7
Of the 7 parks where we can rate Io Moth sightings, Congaree National Park ranks 6th at about 10%. The best odds are in Great Smoky Mountains National Park (United States, about 20%), Big Cypress National Preserve (United States, about 20%) and Shenandoah National Park (United States, about 10%).
Same family: Saturniidae
The closest relatives of the Io Moth that you can see in Congaree National Park (family Saturniidae, Emperor and Giant Silk Moths) are North American Luna Moth (about 30%), Rosy Maple Moth (about 10%) and Polyphemus Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Io Moth is recorded against all the insects logged in Congaree National Park (6 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
