Iridopsis pergracilis
In 3 days ~20% in a week ~40%
Iridopsis pergracilis, the cypress looper moth, is a moth of the family Geometridae. The species was first described by George Duryea Hulst in 1900. It is found in the US from Maryland to Florida. The wingspan is 26–28 mm.
The larvae feed on Taxodium distichum (including Taxodium distichum var. nutans). Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Big Cypress National Preserve | 🇺🇸 United States |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Cypress Gray sighting in Big Cypress National Preserve on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 220th most-seen of the 262 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.
April
In that month about 20% of wildlife watchers report a Cypress Gray in Big Cypress National Preserve on a given day, against under 5% in July to March, the lowest months. That is one of Big Cypress National Preserve's driest months, with about 65 mm of rain against 260 mm in June.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Cypress Gray sightings with a recorded time, and nearly all of them come between 6 pm and 6 am: it is mostly seen at night.
Only Big Cypress National Preserve, in our data
Big Cypress National Preserve is the only park on Wallace's Line with enough records to rate Cypress Gray sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Geometridae
The closest relatives of the Cypress Gray that you can see in Big Cypress National Preserve (family Geometridae, Geometer Moths) are Cypress Emerald (about 10%), Raspberry Wave (about 10%) and Swag-Lined Wave (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Cypress Gray is recorded against all the insects logged in Big Cypress National Preserve (7 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.
