Mecyna flavalis
In 3 days ~10% in a week ~20%
Mecyna flavalis is a species of moth in the family Crambidae. It is known from most of Europe (except Ireland, Norway, Portugal, Slovenia and Ukraine) to Japan. The species was first described by Michael Denis and Ignaz Schiffermüller in 1775.
The wingspan is 25–29 mm. Adults are on wing from July to August. The larvae feed on Galium mollugo, Artemisia campestris, Ballota, Reseda and Urtica urens. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Pyrénées National Park | 🇫🇷 France |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Yellow Pearl sighting in Pyrénées National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 1144th most-seen of the 1277 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Yellow Pearl in Pyrénées National Park on a given day, so our monthly data shows no clear season.
Only Pyrénées National Park, in our data
Pyrénées National Park is the only park on Wallace's Line with enough records to rate Yellow Pearl sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Yellow Pearl is recorded against all the insects logged in Pyrénées National Park (9 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.
