Copaxa decrescens
In 3 days ~10% in a week ~30%
Copaxa decrescens is a species of moth in the family Saturniidae first described by Francis Walker in 1855. It is widespread in Central and South America at low to medium altitudes. The wingspan is 90–120 mm for males and 105–125 mm for females.
The larvae feed on Persea, Salix and Quercus species, including Quercus ilex. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Monteverde Cloud Forest Reserve | 🇨🇷 Costa Rica |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | São Paulo | 🇧🇷 Brazil |
Rare
Under 5% of wildlife watchers report a Copaxa decrescens sighting in Monteverde Cloud Forest Reserve on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 412th most-seen of the 506 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
January–February, May and November
In those months about 10% of wildlife watchers report a Copaxa decrescens in Monteverde Cloud Forest Reserve on a given day, against under 5% in March–April, June–October and December, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Copaxa decrescens sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Monteverde Cloud Forest Reserve, in our data
Monteverde Cloud Forest Reserve is the only park on Wallace's Line with enough records to rate Copaxa decrescens sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Copaxa decrescens is recorded against all the insects logged in Monteverde Cloud Forest 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.
