Nyctophila reichii
In 3 days ~20% in a week ~40%
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 |
With luck
About 10% of wildlife watchers report a Mediterranean Pale Glow-Worm sighting in Sierra de Guadarrama National Park on a given day, based on 20 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 177th most-seen of the 597 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.
February, April–July and October–November
In those months about 10% of wildlife watchers report a Mediterranean Pale Glow-Worm in Sierra de Guadarrama National Park on a given day, against under 5% in March, August–September and December–January, the lowest months.
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.
2nd of 4
Of the 4 parks where we can rate Mediterranean Pale Glow-Worm sightings, Sierra de Guadarrama National Park ranks 2nd at about 10%. The best odds are in Sierra Nevada National Park (Spain, about 20%).
Same order: Coleoptera
The closest relatives of the Mediterranean Pale Glow-Worm that you can see in Sierra de Guadarrama National Park (order Coleoptera, Beetles) are Seven-Spotted Lady Beetle (about 20%), Physomeloe corallifer (about 20%) and Heliotaurus ruficollis (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 Sierra de Guadarrama National Park (20 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.
