Paracorsia repandalis
In 3 days ~10% in a week ~20%
Paracorsia is a monotypic genus of moth in the family Crambidae described by H. Marion in 1959. It contains only one species, Paracorsia repandalis, described by Michael Denis and Ignaz Schiffermüller in 1775. It is found in most of Europe, except Ireland, Fennoscandia and the Baltic region. It has also been recorded from central Asia, including Iran and Kyrgyzstan and North America where it has been recorded in southern Ontario and northern Indiana.
The wingspan is 24–28 mm. Adults are on wing from April to October in two generations per year. The larvae feed on Verbascum species, including Verbascum lychnitis, Verbascum thapsus and Verbascum phlomoides. Pupation occurs in early spring after hibernating in a case. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Boston | 🇺🇸 United States | |
| 2 | Vienna | 🇦🇹 Austria | |
| 3 | Chicago | 🇺🇸 United States | |
| 4 | Toronto | 🇨🇦 Canada | |
| 5 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Scarce Straw Pearl sighting in Vienna on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 795th most-seen of the 1406 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.
August
In that month about 10% of wildlife watchers report a Scarce Straw Pearl in Vienna on a given day, against under 5% in September to July, the lowest months. That is one of Vienna's wettest months, with about 85 mm of rain against 40 mm in February.
Among the best
Of the 5 cities where we can rate Scarce Straw Pearl sightings, Vienna ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Boston (United States, under 5%).
Same family: Crambidae
The closest relatives of the Scarce Straw Pearl that you can see in Vienna (family Crambidae, Crambid Snout Moths) are Box Tree Moth (about 10%), Straw-Barred Pearl (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 Scarce Straw Pearl is recorded against all the insects logged in Vienna (12 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.
