Eudesmia arida
In 3 days ~20% in a week ~40%
Eudesmia arida, the arid eudesmia moth, is a moth of the family Erebidae. It was described by Skinner in 1906. It is found from Arizona to Texas in the United States and in Mexico. Its wingspan is 23–30 mm. Adults have been recorded on wing from June to October.
The larvae feed on lichens. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Big Bend National Park | 🇺🇸 United States |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report an Arid Eudesmia Moth sighting in Big Bend National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 204th most-seen of the 329 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.
July and August
In those months about 20% of wildlife watchers report an Arid Eudesmia Moth in Big Bend National Park on a given day, against under 5% in October to June, the lowest months. Those are among Big Bend National Park's wettest months, with about 35 mm of rain a month against 10 mm in April.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most Arid Eudesmia Moth sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Big Bend National Park, in our data
Big Bend National Park is the only park on Wallace's Line with enough records to rate Arid Eudesmia Moth sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Erebidae
The closest relatives of the Arid Eudesmia Moth that you can see in Big Bend National Park (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Bird Toxonprucha (about 20%), Lophocampa bicolor (about 10%) and Paler Graphic (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Arid Eudesmia Moth is recorded against all the insects logged in Big Bend National Park (8 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.
