Macaria brunneata
In 3 days ~10% in a week ~20%
Macaria brunneata, the Rannoch looper, is a moth of the family Geometridae. The species was first described by Carl Peter Thunberg in 1784. It is found in Siberia, Japan, and northern and mountainous parts of North America, and throughout Europe, though in Britain it is largely or entirely restricted to mature forests in central Scotland.
The wingspan is 25–30 mm (0.98–1.18 in). The length of the forewings is 11–13 mm (0.43–0.51 in). It flies during the day, and when at rest often holds its wings closed as a butterfly does. The moth flies in June and July in Britain and in July and August in North America.
The caterpillars feed on bilberry in Britain and on that and other plants of the heath family, such as bearberry, in North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Hohe Tauern National Park | 🇦🇹 Austria | |
| 2 | Tatra National Park | 🇸🇰 Slovakia | |
| 3 | Cairngorms National Park | 🇬🇧 United Kingdom |
Rare
Under 5% of wildlife watchers report a Rusty Speranza Moth sighting in Prague on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 594th most-seen of the 724 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 a Rusty Speranza Moth in Prague on a given day, against under 5% in July to May, the lowest months. That is one of Prague's wettest months, with about 80 mm of rain against 30 mm in February.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Rusty Speranza Moth sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 3 cities where we can rate Rusty Speranza Moth sightings, Prague has the highest daily chance: under 5%. Next come Berlin (Germany, under 5%) and Moscow (Russia, under 5%).
GBIF citizen-science records
It is estimated from how often the Rusty Speranza Moth is recorded against all the insects logged in Prague (6 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.
