Scolitantides orion
In 3 days ~60% in a week ~90%
Scolitantides orion, the chequered blue, is a species of butterfly in the family Lycaenidae (gossamer-winged butterflies). It is found in Europe, Russia and east across the Palearctic to Japan. S. o. orion Europe (Greece, North Macedonia and Bulgaria), Russia, Caucasus, central Siberia, Transbaikalia, Russian Far East
In France there is usually a single generation flying in May and June, sometimes there are two generations May then September. The butterfly lives in rocky areas up to 1000 m of altitude, on plants such as Sedum telephium and Sedum album.
Above and beneath rather similar to Pseudophilotes baton but larger and darker, recognizable by the fringes being very distinctly spotted and the white underside abundantly and heavily spotted with black, the hindwing... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Triglav National Park | 🇸🇮 Slovenia | |
| 2 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 3 | Mercantour National Park | 🇫🇷 France | |
| 4 | Pyrénées National Park | 🇫🇷 France |
Possible
About 20% of wildlife watchers report a Chequered Blue sighting in Triglav National Park on a given day, based on 36 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 49th most-seen of the 260 insects we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
May
In that month about 40% of wildlife watchers report a Chequered Blue in Triglav National Park on a given day, against under 5% in September to April, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Chequered Blue sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 4 parks where we can rate Chequered Blue sightings, Triglav National Park has the highest daily chance: about 20%. Next come Bavarian Forest National Park (Germany, about 10%) and Mercantour National Park (France, about 10%).
Same family: Lycaenidae
The closest relatives of the Chequered Blue that you can see in Triglav National Park (family Lycaenidae, Gossamer-winged Butterflies) are Chalkhill Blue (about 40%), Sooty Copper (about 20%) and Adonis Blue (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Chequered Blue is recorded against all the insects logged in Triglav National Park (36 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.
