Glutophrissa drusilla
In 3 days ~30% in a week ~50%
Appias drusilla, the Florida white or tropical white, is a butterfly in the family Pieridae. It is found in tropical America from Brazil north to southern peninsular Florida and the Florida Keys and Antilles. It frequently visits coastal Texas and is a rare stray to Nebraska and Colorado. The habitat consists of tropical lowland evergreen or semideciduous forests.
The wingspan is 53–77 mm (2.1–3.0 in). Males are solid white on both the upper and lower surfaces of the wings except for a narrow edging of black along the forewing costal margin. The female has two forms: the dry-season form is all white and the wet-season form has black along the forewing costal margin and a yellow-orange upper hindwing. The dry-season form is on wing from October to April and the wet-season form from May to September. They feed on flower nectar from a variety of weeds and garden plants including Lantana and Eupatorium.
The larvae feed on glucosinolate-containing plant species from the Capparaceae, Cleomaceae, and Putranjivaceae families (excluding Brassicaceae), including Drypetes lateriflora and Capparis flexuosa in Florida. They are shade loving and feed during the night and on cloudy... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Montes Azules Biosphere Reserve | 🇲🇽 Mexico | |
| 2 | Yasuní National Park | 🇪🇨 Ecuador | |
| 3 | Calakmul Biosphere Reserve | 🇲🇽 Mexico | |
| 4 | Sian Ka'an Biosphere Reserve | 🇲🇽 Mexico | |
| 5 | Iguazú National Park | 🇦🇷 Argentina | |
| 6 | Everglades National Park | 🇺🇸 United States | |
| 7 | Iguaçu National Park | 🇧🇷 Brazil | |
| 8 | Cumbres de Monterrey National Park | 🇲🇽 Mexico |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Santa Cruz de la Sierra | 🇧🇴 Bolivia | |
| 2 | Vitória | 🇧🇷 Brazil | |
| 3 | San Pedro Sula | 🇭🇳 Honduras | |
| 4 | Santo Domingo | 🇩🇴 Dominican Republic | |
| 5 | Monterrey | 🇲🇽 México | |
| 6 | Rio de Janeiro | 🇧🇷 Brazil | |
| 7 | Guadalajara | 🇲🇽 México | |
| 8 | Mexico City | 🇲🇽 México | |
| 9 | São Paulo | 🇧🇷 Brazil |
With luck
About 10% of wildlife watchers report a Florida White sighting in Sian Ka'an Biosphere Reserve on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 15th most-seen of the 20 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.
April
In that month about 30% of wildlife watchers report a Florida White in Sian Ka'an Biosphere Reserve on a given day, against under 5% in February–March, May, July and September–December, the lowest months. That is one of Sian Ka'an Biosphere Reserve's driest months, with about 40 mm of rain against 230 mm in June.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Florida White sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
4th of 8
Of the 8 parks where we can rate Florida White sightings, Sian Ka'an Biosphere Reserve ranks 4th at about 10%. The best odds are in Montes Azules Biosphere Reserve (Mexico, about 20%), Yasuní National Park (Ecuador, about 10%) and Calakmul Biosphere Reserve (Mexico, about 10%).
Same order: Lepidoptera
The closest relatives of the Florida White that you can see in Sian Ka'an Biosphere Reserve (order Lepidoptera, Butterflies and Moths) are Dark Kite-Swallowtail (about 30%), Blue Monarch (about 20%) and Zebra Longwing (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Florida White is recorded against all the insects logged in Sian Ka'an Biosphere Reserve (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.
