Nyctophila reichii
In 3 days ~10% in a week ~30%
Nyctophila reichii, commonly known as the Mediterranean firefly, is a species of firefly. The species is very common in the southern and eastern part of the Iberian Peninsula. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 2 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 3 | Cévennes National Park | 🇫🇷 France | |
| 4 | Pyrénées National Park | 🇫🇷 France |
Rare
Under 5% of wildlife watchers report a Mediterranean Pale Glow-Worm sighting in Cévennes National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 730th most-seen of the 996 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
April–May and October
In those months about 10% of wildlife watchers report a Mediterranean Pale Glow-Worm in Cévennes National Park on a given day, against under 5% in June–September and November–March, the lowest months. Those are among Cévennes National Park's wettest months, with about 170 mm of rain a month against 35 mm in July.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Mediterranean Pale Glow-Worm sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is seen both by day and at night.
3rd of 4
Of the 4 parks where we can rate Mediterranean Pale Glow-Worm sightings, Cévennes National Park ranks 3rd at under 5%. The best odds are in Sierra Nevada National Park (Spain, about 20%) and Sierra de Guadarrama National Park (Spain, about 10%).
Same family: Lampyridae
The closest relatives of the Mediterranean Pale Glow-Worm that you can see in Cévennes National Park (family Lampyridae, Fireflies) are European Glow-Worm (about 10%) and Lesser Spectacled Glow-Worm (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Mediterranean Pale Glow-Worm is recorded against all the insects logged in Cévennes National Park (7 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.
