Madoryx pseudothyreus
In 3 days ~20% in a week ~40%
Madoryx pseudothyreus, the false-windowed sphinx, is a moth of the family Sphingidae. The species was first described by Augustus Radcliffe Grote in 1865. It is known from the tip of Florida down to Cuba and the surrounding West Indies.
The wingspan is 66–70 mm. There is a small olive-green basal patch on the forewing upperside which is separated into two spots. There is a brown marginal band on the forewing underside. There are multiple generations per year. Adults feed on the nectar of various flowers, including Asystasia gangetica.
The larvae have been recorded feeding on Avicennia germinans. Pupation takes place in cocoons spun amongst leaf litter. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Everglades National Park | 🇺🇸 United States |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a False-Windowed Sphinx sighting in Everglades National Park on a given day, based on 22 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 173rd most-seen of the 496 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
December
In that month about 20% of wildlife watchers report a False-Windowed Sphinx in Everglades National Park on a given day, against under 5% in February to October, the lowest months. That is one of Everglades National Park's driest months, with about 60 mm of rain against 240 mm in June.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most False-Windowed Sphinx sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Everglades National Park, in our data
Everglades National Park is the only park on Wallace's Line with enough records to rate False-Windowed Sphinx sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Sphingidae
The closest relatives of the False-Windowed Sphinx that you can see in Everglades National Park (family Sphingidae, Sphinx Moths) are Tersa Sphinx (about 10%), Giant Sphinx (about 10%) and Grote's Sphinx (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the False-Windowed Sphinx is recorded against all the insects logged in Everglades National Park (22 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.
