Eurema daira
In 3 days ~50% in a week ~80%
Eurema daira, the fairy yellow, barred yellow or barred sulphur, is a butterfly of the family Pieridae. The species was first described by Jean-Baptiste Godart in 1819. It is found from Argentina north to the southern United States. Strays can be found up to southern Arizona, South Dakota, southern Texas and even Washington, D.C.
The wingspan is 32–41 mm. Adults are on wing year round in the southern part of the range and in late summer and fall as vagrant. The larvae feed on Fabaceae species, including Stylosanthes biflora and Aeschynomene species. Adults feed on the nectar of various flowers including joint vetches and shepherd's needle, and are the principal pollinators of Cnidoscolus urens. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cabo Pulmo National Park | 🇲🇽 Mexico | |
| 2 | Everglades National Park | 🇺🇸 United States | |
| 3 | Big Cypress National Preserve | 🇺🇸 United States | |
| 4 | Merritt Island National Wildlife Refuge | 🇺🇸 United States | |
| 5 | Cerro Azul Meámbar National Park | 🇭🇳 Honduras | |
| 6 | Lago de Yojoa | 🇭🇳 Honduras |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Miami | 🇺🇸 United States | |
| 2 | Guadalajara | 🇲🇽 México | |
| 3 | Puebla | 🇲🇽 México | |
| 4 | Orlando | 🇺🇸 United States | |
| 5 | San José | 🇨🇷 Costa Rica | |
| 6 | Mexico City | 🇲🇽 México |
Possible
About 20% of wildlife watchers report a Barred Yellow sighting in Everglades National Park on a given day, based on 160 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 28th most-seen of the 496 insects we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
November to January
In those months about 30% of wildlife watchers report a Barred Yellow in Everglades National Park on a given day, against about 10% in February and April–June, the lowest months. Those are among Everglades National Park's driest months, with about 60 mm of rain a month against 240 mm in June.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Barred Yellow sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 6
Of the 6 parks where we can rate Barred Yellow sightings, Everglades National Park ranks 2nd at about 20%. The best odds are in Cabo Pulmo National Park (Mexico, about 30%).
GBIF citizen-science records
It is estimated from how often the Barred Yellow is recorded against all the insects logged in Everglades National Park (160 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.
