Zerene cesonia
In 3 days ~30% in a week ~50%
Zerene cesonia, the southern dogface, is a North and South American butterfly in the family Pieridae, subfamily Coliadinae (until recently the species was sometimes placed in the related genus Colias instead of Zerene). Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Big Bend National Park | 🇺🇸 United States | |
| 2 | Saguaro National Park | 🇺🇸 United States | |
| 3 | Bahía de Loreto National Park | 🇲🇽 Mexico | |
| 4 | Cabo Pulmo National Park | 🇲🇽 Mexico | |
| 5 | Reserva de la Biosfera Mariposa Monarca | 🇲🇽 Mexico | |
| 6 | Guadalupe Mountains National Park | 🇺🇸 United States | |
| 7 | Cumbres de Monterrey National Park | 🇲🇽 Mexico | |
| 8 | Point Pelee National Park | 🇨🇦 Canada | |
| 9 | Padre Island National Seashore | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | La Paz | 🇧🇴 Bolivia | |
| 2 | Cochabamba | 🇧🇴 Bolivia | |
| 3 | San Luis Potosí | 🇲🇽 México | |
| 4 | San Antonio | 🇺🇸 United States | |
| 5 | Toluca | 🇲🇽 México | |
| 6 | Monterrey | 🇲🇽 México | |
| 7 | Austin | 🇺🇸 United States | |
| 8 | Guadalajara | 🇲🇽 México | |
| 9 | Puebla | 🇲🇽 México | |
| 10 | Mexico City | 🇲🇽 México |
With luck
About 10% of wildlife watchers report a Southern Dogface sighting in Toluca on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 40th most-seen of the 70 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
February
In that month about 30% of wildlife watchers report a Southern Dogface in Toluca on a given day, against under 5% in April–August and December–January, the lowest months. That is one of Toluca's driest months, with about 10 mm of rain against 150 mm in July.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Southern Dogface sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
5th of 15
Of the 15 cities where we can rate Southern Dogface sightings, Toluca ranks 5th at about 10%. The best odds are in La Paz (Bolivia, about 20%), Cochabamba (Bolivia, about 20%) and San Luis Potosí (México, about 10%).
Same family: Pieridae
The closest relatives of the Southern Dogface that you can see in Toluca (family Pieridae, Whites, Yellows, and Sulphurs) are Pure-Banded Dartwhite (about 40%), Green-Eyed White (about 30%) and Cloudless Sulphur (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Southern Dogface is recorded against all the insects logged in Toluca (9 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.
