Brenthis ino
In 3 days ~40% in a week ~70%
The lesser marbled fritillary is present in Spain, France, Italy, central and northern Europe, Siberia, temperate Asia, northern China and Japan. This species prefers damp meadows and bogs at an elevation of 0–1,500 metres (0–4,921 ft) above sea level.
Brenthis ino is a medium-sized butterfly with a wingspan of 34–42 millimetres (1.3–1.7 in). Females are larger and usually darker than males. The antennae are clavate (club shaped). The basic color of the upper side of the wings is orange with several dark brown blotches. The edges are brown too, with a discontinuous stripe of small blotches. The lower side of the wings is creamy orange with... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Biebrza National Park | 🇵🇱 Poland | |
| 2 | Gauja National Park | 🇱🇻 Latvia | |
| 3 | Aigüestortes National Park | 🇪🇸 Spain | |
| 4 | Mercantour National Park | 🇫🇷 France | |
| 5 | Vanoise National Park | 🇫🇷 France | |
| 6 | Pyrénées National Park | 🇫🇷 France | |
| 7 | Bavarian Forest National Park | 🇩🇪 Germany |
With luck
About 10% of wildlife watchers report a Lesser Marbled Fritillary sighting in Mercantour National Park on a given day, based on 11 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 184th most-seen of the 412 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
July
In that month about 20% of wildlife watchers report a Lesser Marbled Fritillary in Mercantour National Park on a given day, against under 5% in September to May, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Lesser Marbled Fritillary sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 7
Of the 7 parks where we can rate Lesser Marbled Fritillary sightings, Mercantour National Park ranks 4th at about 10%. The best odds are in Biebrza National Park (Poland, about 20%), Gauja National Park (Latvia, about 20%) and Aigüestortes National Park (Spain, about 20%).
GBIF citizen-science records
It is estimated from how often the Lesser Marbled Fritillary is recorded against all the insects logged in Mercantour National Park (11 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.
