Lysandra albicans
In 3 days ~20% in a week ~50%
Lysandra albicans, the Spanish chalk-hill blue, is a butterfly of the family Lycaenidae. It is found in Spain and Western North Africa. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sierra Nevada National Park | 🇪🇸 Spain |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Spanish Chalk-Hill Blue sighting in Sierra Nevada National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 330th most-seen of the 479 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.
July
In that month about 30% of wildlife watchers report a Spanish Chalk-Hill Blue in Sierra Nevada National Park on a given day, against under 5% in August to May, the lowest months. That is one of Sierra Nevada National Park's driest months, with about 30 mm of rain against 130 mm in March.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Spanish Chalk-Hill Blue 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 Sierra Nevada National Park, in our data
Sierra Nevada National Park is the only park on Wallace's Line with enough records to rate Spanish Chalk-Hill Blue sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Spanish Chalk-Hill Blue is recorded against all the insects logged in Sierra Nevada National Park (6 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.
