Lysandra hispana
In 3 days ~20% in a week ~40%
Lysandra hispana, the Provence chalk-hill blue, is a butterfly of the family Lycaenidae. It is found in Spain, southern France and northern Italy. The wingspan is 16–18 mm. It is very similar to Lysandra coridon but is paler (greyer and duller, greyish pearly-blue, nacreous blue) with the distal margin more strongly spotted. However both are very variable. The butterfly is on wing from April to September in two generations. The habitat is dry grassland on chalk or limestone.
The larvae feed on horseshoe vetch. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cévennes National Park | 🇫🇷 France | |
| 2 | Pyrénées National Park | 🇫🇷 France |
With luck
About 10% of wildlife watchers report a Provence Chalk-Hill Blue sighting in Cévennes National Park on a given day, based on 18 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 437th most-seen of the 996 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
May, August and October
In those months about 10% of wildlife watchers report a Provence Chalk-Hill Blue in Cévennes National Park on a given day, against under 5% in June–July, September and November–April, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Provence Chalk-Hill 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 2 parks where we can rate Provence Chalk-Hill Blue sightings, Cévennes National Park has the highest daily chance: about 10%. Next come Pyrénées National Park (France, under 5%).
GBIF citizen-science records
It is estimated from how often the Provence Chalk-Hill Blue is recorded against all the insects logged in Cévennes National Park (18 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.
