Nemophora metallica
In 3 days ~10% in a week ~20%
Nemophora metallica is a moth of the family Adelidae. It is found in Europe. Its wingspan is 15–20 mm. The moth flies from late June to August depending on the location. The larvae feed on Knautia arvensis and Scabiosa columbaria. 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 Brassy Longhorn sighting in Vienna on a given day, based on 10 verified sightings from GBIF citizen-science data. It is the 895th 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.
May
In that month about 10% of wildlife watchers report a Brassy Longhorn in Vienna on a given day, against under 5% in June to April, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Brassy Longhorn sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 4 cities where we can rate Brassy Longhorn sightings, Vienna ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Prague (Czechia, under 5%).
GBIF citizen-science records
It is estimated from how often the Brassy Longhorn is recorded against all the insects logged in Vienna (10 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.
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