Nyctobrya muralis
In 3 days ~40% in a week ~70%
The marbled green (Cryphia muralis) is a moth of the family Noctuidae. The species was first described by Johann Reinhold Forster in 1771. It is found in Europe. Its wings are white with several shades of green. However, the green fades. 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 | Wadden Sea National Park | 🇩🇪 Germany | |
| 5 | Pyrénées National Park | 🇫🇷 France |
With luck
About 10% of wildlife watchers report a Marbled Green sighting in Sierra Nevada National Park on a given day, based on 17 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 132nd most-seen of the 479 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
July
In that month about 30% of wildlife watchers report a Marbled Green in Sierra Nevada National Park on a given day, against under 5% in October 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 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Marbled Green sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Yes
Of the 5 parks where we can rate Marbled Green sightings, Sierra Nevada National Park has the highest daily chance: about 10%. Next come Sierra de Guadarrama National Park (Spain, under 5%) and Cévennes National Park (France, under 5%).
Same family: Noctuidae
The closest relatives of the Marbled Green that you can see in Sierra Nevada National Park (family Noctuidae, Cutworm Moths and Allies) are Turnip Moth (about 20%), The Bordered Straw (about 20%) and Silver Υ (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Marbled Green is recorded against all the insects logged in Sierra Nevada National Park (17 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.
