Agrotera nemoralis
In 3 days ~10% in a week ~20%
Agrotera nemoralis, the beautiful pearl, is a species of moth of the family Crambidae. It was first described by Giovanni Antonio Scopoli in his 1763 Entomologia Carniolica. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 2 | Pyrénées National Park | 🇫🇷 France |
Rare
Under 5% of wildlife watchers report a Beautiful Pearl sighting in Porto on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 422nd most-seen of the 498 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.
May and August
In those months about 10% of wildlife watchers report a Beautiful Pearl in Porto on a given day, against under 5% in June–July and September–April, the lowest months. Those are among Porto's driest months, with about 40 mm of rain a month against 140 mm in January.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Beautiful Pearl sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Among the best
Of the 2 cities where we can rate Beautiful Pearl sightings, Porto ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Seoul (South Korea, under 5%).
Same family: Crambidae
The closest relatives of the Beautiful Pearl that you can see in Porto (family Crambidae, Crambid Snout Moths) are Jasmine Moth (about 20%), Rush Veneer (about 10%) and Rusty Dot Pearl (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Beautiful Pearl is recorded against all the insects logged in Porto (6 verified sightings), 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.
