Bena bicolorana
In 3 days ~10% in a week ~30%
Bena bicolorana, the scarce silver-lines, is a moth of the family Nolidae. The species was first described by Johann Kaspar Füssli in 1775. It is found in Europe Turkey, Armenia, Asia Minor and Syria. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 2 | Cévennes National Park | 🇫🇷 France | |
| 3 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 4 | Pyrénées National Park | 🇫🇷 France |
With luck
About 10% of wildlife watchers report a Scarce Silver-Lines sighting in Bavarian Forest National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 727th most-seen of the 1115 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.
June and July
In those months about 10% of wildlife watchers report a Scarce Silver-Lines in Bavarian Forest National Park on a given day, against under 5% in August to May, the lowest months.
Between 11 pm and 2 am
Across all the parks we cover, that three-hour window holds the most Scarce Silver-Lines sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Among the best
Of the 4 parks where we can rate Scarce Silver-Lines sightings, Bavarian Forest National Park ranks 3rd at about 10%, level with the leaders once rounded. The best odds are in Sierra de Guadarrama National Park (Spain, about 10%) and Cévennes National Park (France, about 10%).
Same family: Nolidae
The closest relatives of the Scarce Silver-Lines that you can see in Bavarian Forest National Park (family Nolidae, Tufted Moths) are Green Silver-Lines (about 10%), Least Black Arches (about 10%) and Kent Black Arches (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Scarce Silver-Lines is recorded against all the insects logged in Bavarian Forest 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.
