Neargyractis slossonalis
In 3 days ~20% in a week ~30%
Neargyractis slossonalis, the dimorphic leafcutter moth, is a species of moth in the family Crambidae. It was described by Harrison Gray Dyar Jr. in 1906. It is found in Cuba and the south-eastern United States, where it has been recorded from Alabama, Florida, South Carolina, Georgia and Mississippi.
The wingspan is about 13 mm. Adults have been recorded on wing year round. 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 Dimorphic Leafcutter Moth sighting in Everglades National Park on a given day, based on 17 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 213th 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 30%, if each day is a fresh chance.
January and August–November
In those months about 10% of wildlife watchers report a Dimorphic Leafcutter Moth in Everglades National Park on a given day, against under 5% in February–July and December, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Dimorphic Leafcutter Moth sightings with a recorded time, and about 9 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 Dimorphic Leafcutter Moth sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Crambidae
The closest relatives of the Dimorphic Leafcutter Moth that you can see in Everglades National Park (family Crambidae, Crambid Snout Moths) are Orange-Spotted Flower Moth (about 10%), Watermilfoil Leafcutter Moth (about 10%) and Coffee-Loving Pyrausta Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dimorphic Leafcutter Moth is recorded against all the insects logged in Everglades National Park (17 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.
