Minois dryas
In 3 days ~10% in a week ~30%
Minois dryas, the dryad, is a butterfly of the family Nymphalidae. Minois dryas shaanxiensis (Qian) This species can be found in southern and central Europe up to central Asia and Japan. It prefers margins of mixed woodland and sunny grasslands with plenty of flowers, at an elevation of 100–1,600 metres (330–5,250 ft) above sea level.
The wingspan is 54–70 millimetres (2.1–2.8 in). The basic color of the upperside of the wings is dark brown. The females are larger and paler than the males. On each forewing there are two large eyelets with bluish pupils, while in each hindwing there is just a small eyelet. The underside of the wings is quite similar, but the eyelets on the forewings show a yellowish border and the hindwings are mainly gray brown.
This species is rather similar to Satyrus actaea and Satyrus ferula. In the last one the forewing eyespots centered with white. The butterfly is on wing from June to September... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Triglav National Park | 🇸🇮 Slovenia | |
| 2 | Fertő-Hanság National Park | 🇭🇺 Hungary | |
| 3 | Cévennes National Park | 🇫🇷 France | |
| 4 | Pyrénées National Park | 🇫🇷 France |
Rare
Under 5% of wildlife watchers report a Dryad sighting in Vienna on a given day, based on 38 verified sightings from GBIF citizen-science data. It is the 409th most-seen of the 1406 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 and August
In those months about 10% of wildlife watchers report a Dryad in Vienna on a given day, against under 5% in September to June, the lowest months. Those are among Vienna's wettest months, with about 85 mm of rain a month against 40 mm in February.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Dryad sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 7
Of the 7 cities where we can rate Dryad sightings, Vienna ranks 3rd at under 5%. The best odds are in Novosibirsk (Russia, about 10%) and Budapest (Hungary, about 10%).
Same family: Nymphalidae
The closest relatives of the Dryad that you can see in Vienna (family Nymphalidae, Brush-footed Butterflies) are Meadow Brown (about 20%), Red Admiral (about 20%) and Speckled Wood (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dryad is recorded against all the insects logged in Vienna (38 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.
