Charanyca ferruginea
In 3 days ~20% in a week ~50%
The brown rustic (Rusina ferruginea) is a species of moth of the family Noctuidae. It is found in Europe. then East across the Palearctic to the Sayan Mountains in Central Asia. The wingspan is 32–40 mm. The ground colour of the forewings is dark brown. A series of small white marks run along the costa. The stigmata are not well defined. The antemedian line runs obliquely from the costa and is darker than the ground colour. The postmedian line is fine and also darker than ground colour. The subterminal line is dark and irregular. The hindwings are yellow brown, with darker veins and a small discal spot.
Adult caterpillars are reddish-brown ground. The yellow-white dorsal line is very narrow, as are the clear secondary back lines. The posterior segments of the body have blackish slashes. The lateral stripe is grey-brown, the stigma black and the head dark brown.
The moth flies from June to July depending on the location. The larvae feed on various herbaceous plants, including Rumex species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 2 | Cairngorms National Park | 🇬🇧 United Kingdom | |
| 3 | Wadden Sea National Park | 🇩🇪 Germany | |
| 4 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 5 | Pyrénées National Park | 🇫🇷 France | |
| 6 | Cévennes National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Moscow | 🇷🇺 Russia |
With luck
About 10% of wildlife watchers report a Brown Rustic sighting in Cairngorms National Park on a given day, based on 23 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 133rd most-seen of the 300 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
June
In that month about 20% of wildlife watchers report a Brown Rustic in Cairngorms National Park on a given day, against under 5% in August to April, the lowest months.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most Brown Rustic sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Among the best
Of the 6 parks where we can rate Brown Rustic sightings, Cairngorms National Park ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Snowdonia National Park (United Kingdom, about 10%).
Same family: Noctuidae
The closest relatives of the Brown Rustic that you can see in Cairngorms National Park (family Noctuidae, Cutworm Moths and Allies) are Large Yellow Underwing (about 20%), Antler Moth (about 20%) and Dark Arches (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Brown Rustic is recorded against all the insects logged in Cairngorms National Park (23 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.
