Idaea mediaria
In 3 days ~10% in a week ~30%
Idaea mediaria is a moth of the family Geometridae. It is found in south-western Europe, Corsica, Sardinia, Tuscany and North Africa. The preferred habitat consists of dry and hot areas at elevations from 1,300–1,900 metres (4,300–6,200 ft) above sea level.
The wingspan is 14–19 millimetres (0.55–0.75 in). The adults fly from July to September. [1]. The larvae feed on various herbaceous plants. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 2 | Sierra de Guadarrama National Park | 🇪🇸 Spain |
Rare
Under 5% of wildlife watchers report an Idaea mediaria sighting in Sierra de Guadarrama National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 416th most-seen of the 597 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.
July
In that month about 10% of wildlife watchers report an Idaea mediaria in Sierra de Guadarrama National Park on a given day, against under 5% in August to June, the lowest months. That is one of Sierra de Guadarrama National Park's driest months, with about 20 mm of rain against 110 mm in November.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Idaea mediaria 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.
2nd of 2
Of the 2 parks where we can rate Idaea mediaria sightings, Sierra de Guadarrama National Park ranks 2nd at under 5%. The best odds are in Sierra Nevada National Park (Spain, about 10%).
Same genus: Idaea
The closest relatives of the Idaea mediaria that you can see in Sierra de Guadarrama National Park (genus Idaea) are Portland Ribbon Wave (about 10%), Idaea ostrinaria (about 10%) and Bright Wave (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Idaea mediaria is recorded against all the insects logged in Sierra de Guadarrama 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.
