Pyrisitia proterpia
In 3 days ~20% in a week ~50%
Eurema proterpia, the tailed orange, is a North and South American butterfly in the family Pieridae. The upperside of the wings is orange with a variable amount of black along the forewing costa. The wing veins are lightly marked with black in summer individuals, and winter individuals have no black veins. Males reflect UV light on their upper sides, and some females can be white. The underside of the wings varies depending on the season. Summer individuals are yellow orange with the hindwing slightly pointed. Winter individuals are brown with darker brown markings with the hindwing being much more pointed. The wingspan measures 1+1⁄4 to 1+3⁄4 inches (32–44 mm).
The only similar species in the tailed orange's range is the sleepy orange (Eurema nicippe). The sleepy orange has a black forewing cell spot on the upperside, the upperside of the hindwing has a black marginal border, and the hindwing is not pointed.
The tailed orange lives in a variety of open habitats such as open woodlands, deserts and subtropical habitats. This species may be found from mid-July to early January in Arizona, from August to November in Texas... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cañón del Sumidero National Park | 🇲🇽 Mexico | |
| 2 | Cumbres de Monterrey National Park | 🇲🇽 Mexico | |
| 3 | Saguaro National Park | 🇺🇸 United States | |
| 4 | Big Bend National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Guadalajara | 🇲🇽 México | |
| 2 | San Luis Potosí | 🇲🇽 México | |
| 3 | Monterrey | 🇲🇽 México | |
| 4 | Mexico City | 🇲🇽 México |
With luck
About 10% of wildlife watchers report a Tailed Orange sighting in Guadalajara on a given day, based on 48 verified sightings from GBIF citizen-science data. It is the 25th most-seen of the 229 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.
September and October
In those months about 20% of wildlife watchers report a Tailed Orange in Guadalajara on a given day, against under 5% in January–March and May–July, the lowest months. Those are among Guadalajara's wettest months, with about 95 mm of rain a month against almost none in April.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Tailed Orange sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 4 cities where we can rate Tailed Orange sightings, Guadalajara has the highest daily chance: about 10%. Next come San Luis Potosí (México, about 10%) and Monterrey (México, about 10%).
Same family: Pieridae
The closest relatives of the Tailed Orange that you can see in Guadalajara (family Pieridae, Whites, Yellows, and Sulphurs) are Small White (about 10%), Barred Yellow (about 10%) and Great Southern White (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Tailed Orange is recorded against all the insects logged in Guadalajara (48 verified sightings), 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.
