Incurvaria masculella
In 3 days ~10% in a week ~20%
Incurvaria masculella, the feathered leaf-cutter, is a moth of the family Incurvariidae. It is widespread in Europe. The wingspan is 12–16 mm. Head pale ochreous, ferruginous-tinged. Forewings rather dark purplish bronzy-fuscous; a whitish triangular dorsal spot before middle, and a smaller one before tornus. Hindwings rather dark grey.
In Belgium, the moth flies from April to May; in May in the British Isles. The larvae feed on Crataegus and various deciduous trees and bushes, including roses, Malus domestica, Prunus mahaleb, oak, sweet chestnut, Corylus avellana, Tilia, Carpinus betulus, and Vaccinium. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 2 | Wadden Sea National Park | 🇩🇪 Germany |
Rare
Under 5% of wildlife watchers report a Feathered Bright sighting in Prague on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 594th most-seen of the 724 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.
April
In that month about 10% of wildlife watchers report a Feathered Bright in Prague on a given day, against under 5% in May to March, the lowest months.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most Feathered Bright 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 6 cities where we can rate Feathered Bright sightings, Prague ranks 3rd at under 5%, level with the leaders once rounded. The best odds are in Rotterdam [The Hague] (Netherlands, under 5%) and London (United Kingdom, under 5%).
Same order: Lepidoptera
The closest relatives of the Feathered Bright that you can see in Prague (order Lepidoptera, Butterflies and Moths) are European Peacock Butterfly (about 30%), Common Blue (about 30%) and Small Heath (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Feathered Bright is recorded against all the insects logged in Prague (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.
