Eurema daira
In 3 days ~60% in a week ~90%
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 30% of wildlife watchers report a Barred Yellow sighting in Cabo Pulmo National Park on a given day, based on 11 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 6th most-seen of the 22 insects we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
February and September–October
In those months about 40% of wildlife watchers report a Barred Yellow in Cabo Pulmo National Park on a given day, against under 5% in March–June, August and December, the lowest months. Those are among Cabo Pulmo National Park's wettest months, with about 55 mm of rain a month against almost none in April.
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.
Yes
Of the 6 parks where we can rate Barred Yellow sightings, Cabo Pulmo National Park has the highest daily chance: about 30%. Next come Everglades National Park (United States, about 20%) and Big Cypress National Preserve (United States, about 20%).
Same family: Pieridae
The closest relatives of the Barred Yellow that you can see in Cabo Pulmo National Park (family Pieridae, Whites, Yellows, and Sulphurs) are Great Southern White (about 30%) and Southern Dogface (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Barred Yellow is recorded against all the insects logged in Cabo Pulmo National Park (11 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.
