Eublemma ostrina
In 3 days ~30% in a week ~60%
Eublemma ostrina, the purple marbled, is a moth of the family Erebidae. The species was first described by Jacob Hübner in 1808. It is mainly found in central and southern Europe, and further east, but is also a scarce migrant in the United Kingdom, where it is mainly found along the south coast.
Eublemma ostrinum occurs throughout the Mediterranean including North Africa and is only occasionally found in Central Europe. Heading east the distribution area is from southern Russia, Asia minor, and Afghanistan. Occasional finds in northern Europe, such as in 1992 in the UK are usually migrant butterflies, although in 1999. larvae and pupae were found in South Devon and the Isle of Portland. Eublemma ostrinum is found in warm, dry areas.
The wingspan is 18–25 millimetres (0.71–0.98 in). Forewing cream white, slightly tinged with pale brown in basal half and in terminal area; median shade diffuse, slightly outcurved, followed immediately by a black dot representing the reniform stigma; just beyond it on the costa an oblique purplish bar to vein 6 represents the outer line; submarginal line whitish, sharply indented on each fold... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sierra Nevada National Park | 🇪🇸 Spain |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Barcelona | 🇪🇸 Spain |
With luck
About 10% of wildlife watchers report a Purple Marbled sighting in Sierra Nevada National Park on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 211th most-seen of the 479 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
May to July
In those months about 20% of wildlife watchers report a Purple Marbled in Sierra Nevada National Park on a given day, against under 5% in August to April, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Purple Marbled sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
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 Purple Marbled sightings: about 10% of wildlife watchers there report one on a given day.
Same genus: Eublemma
The closest relatives of the Purple Marbled that you can see in Sierra Nevada National Park (genus Eublemma) are Beautiful Marbled (about 10%) and Small Marbled (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Purple Marbled is recorded against all the insects logged in Sierra Nevada National Park (10 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.
