Hipparchia statilinus
In 3 days ~20% in a week ~50%
Hipparchia statilinus, the tree grayling, is a butterfly of the family Nymphalidae. The species can be found in Central Europe, Southern Europe, North Africa, Anatolia and the Caucasus. This butterfly can be found in dry, rocky, grassy and bushy areas at an elevation of 0–1,400 metres (0–4,593 ft) above sea level.
Hipparchia statilinus has a wingspan of 60–68 millimetres (2.4–2.7 in). These butterflies are rather variable, especially in the shades of brown present on the wings and in the intensity of the white bands. Usually the basic color of the upperside of the wings is dull brown in the male, lighter or ocher in the female, with a fringe on the edges. Two blind or very discreetly pupillated black eyespots are present on the forewings, while the hindwings show a very small eyespot.
The underside is marbled with ocher and dusty white bands. On the underside of each forewing there are two black eyespots ringed in yellow, the upper one with a white central spot. Between... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kiskunság National Park | 🇭🇺 Hungary | |
| 2 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 3 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 4 | Cévennes National Park | 🇫🇷 France | |
| 5 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Barcelona | 🇪🇸 Spain |
With luck
About 10% of wildlife watchers report a Tree Grayling sighting in Barcelona on a given day, based on 37 verified sightings from GBIF citizen-science data. It is the 104th most-seen of the 381 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
August and September
In those months about 20% of wildlife watchers report a Tree Grayling in Barcelona on a given day, against under 5% in November to June, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Tree Grayling sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Barcelona, in our data
Barcelona is the only city on Wallace's Line with enough records to rate Tree Grayling sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Tree Grayling is recorded against all the insects logged in Barcelona (37 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.
