Catocala nymphagoga
In 3 days ~10% in a week ~20%
Catocala nymphagoga, the oak yellow underwing, is a moth of the family Erebidae. It is found in Southern Europe, from Bulgaria up to the Iberian Peninsula and sometimes further north as a migrant. It is also found in North Africa and Asia Minor.
Forewing grey more or less wholly suffused with blackish brown, the basal area, or at least its lower half, a costal patch beyond inner line, a streak from costa before outer line, and the submarginal line itself remaining pale; inner and outer lines velvety black, distinct, sometimes doubled; the inner oblique, dentate inwards on the veins; the outer biangulate externally (in vein 5, forming a deep sinus inwards, its end below the reniform pale, and an inward angle on vein 1: reniform indistinct, obscured by the brown median shade, with dark centre and outline; subterminal line waved, distinct, with darker dentate edges; hindwing yellow, with broad black terminal border, containing a small yellow spot at apex and a sinus inwardly in submedian interval: the median band narrow and straight, acutely or squarely angled on the submedian fold, the base of wing often darkened with olive fuscous; - the darkest... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 2 | Cévennes National Park | 🇫🇷 France | |
| 3 | Sierra de Guadarrama National Park | 🇪🇸 Spain |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Madrid | 🇪🇸 Spain |
Rare
Under 5% of wildlife watchers report an Oak Yellow Underwing sighting in Madrid on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 409th most-seen of the 457 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
June
In that month about 10% of wildlife watchers report an Oak Yellow Underwing in Madrid on a given day, against under 5% in July to May, the lowest months. That is one of Madrid's driest months, with about 20 mm of rain against 65 mm in October.
Between 11 pm and 2 am
Across all the parks we cover, that three-hour window holds the most Oak Yellow Underwing sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Madrid, in our data
Madrid is the only city on Wallace's Line with enough records to rate Oak Yellow Underwing sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Oak Yellow Underwing is recorded against all the insects logged in Madrid (5 verified sightings), 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.
