Melanargia galathea
In 3 days ~70% in a week >90%
Melanargia galathea, the marbled white, is a medium-sized butterfly in the family Nymphalidae. The marbled white was described in 1666 by C Merrett, and in 1695 James Petiver found a specimen in a wood near Hampstead and called it Papilio leucomelanus, our half-Mourner, to distinguish it from the Bath White, which Vernon (1702) had called the half-Mourner. It was also known as The Marmoris by Benjamin Wilkes and The Marmoress by Moses Harris. The butterfly was, also described in 1758, by the Swedish biologist and physician, Carl Linnaeus who formalised binomial nomenclature. Despite its common name and appearance, this butterfly is one of the "browns", of the subfamily Satyrinae.
This species can be found across most of Europe, southern Russia, Asia Minor and Iran. It is found in forest clearings and edges, meadows and steppe where it occurs up to 1,500–1,700 metres (4,900–5,600 ft) above sea level. The caterpillars feed on various grasses.
Melanargia galathea has a wingspan of 46–56 millimetres (1.8–2.2 in). In these medium-sized butterflies the upper side of the wings is decorated with white and gray-black or dark brown markings, but it is always gray-black... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Picos de Europa National Park | 🇪🇸 Spain | |
| 2 | Triglav National Park | 🇸🇮 Slovenia | |
| 3 | Ecrins National Park | 🇫🇷 France | |
| 4 | Aigüestortes National Park | 🇪🇸 Spain | |
| 5 | Mercantour National Park | 🇫🇷 France | |
| 6 | Vanoise National Park | 🇫🇷 France | |
| 7 | Kiskunság National Park | 🇭🇺 Hungary | |
| 8 | Cévennes National Park | 🇫🇷 France | |
| 9 | Hohe Tauern National Park | 🇦🇹 Austria | |
| 10 | Pyrénées National Park | 🇫🇷 France | |
| 11 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 12 | Fertő-Hanság National Park | 🇭🇺 Hungary | |
| 13 | Ordesa y Monte Perdido National Park | 🇪🇸 Spain | |
| 14 | Plitvice Lakes National Park | 🇭🇷 Croatia | |
| 15 | Tatra National Park | 🇸🇰 Slovakia | |
| 16 | Białowieża National Park | 🇵🇱 Poland |
Likely
About 40% of wildlife watchers report a Marbled White sighting in Mercantour National Park on a given day, based on 68 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 19th most-seen of the 412 insects we can rate there. Over three days the chance rises to about 70%, and over a week to over 90%, if each day is a fresh chance.
August
In that month about 50% of wildlife watchers report a Marbled White in Mercantour National Park on a given day, against under 5% in January–May and October–November, the lowest months. That is one of Mercantour National Park's driest months, with about 50 mm of rain against 140 mm in October.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Marbled White sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 16 parks where we can rate Marbled White sightings, Mercantour National Park ranks 5th at about 40%, level with the leaders once rounded. The best odds are in Picos de Europa National Park (Spain, about 40%), Triglav National Park (Slovenia, about 40%) and Ecrins National Park (France, about 40%). All parks ranked.
Same family: Nymphalidae
The closest relatives of the Marbled White that you can see in Mercantour National Park (family Nymphalidae, Brush-footed Butterflies) are Almond Ringlet (about 40%), Large Ringlet (about 40%) and Niobe Fritillary (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Marbled White is recorded against all the insects logged in Mercantour National Park (68 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.
