Brachionycha nubeculosa
In 3 days ~10%
Brachionycha nubeculosa, the Rannoch sprawler, is a moth of the family Noctuoidea. It is found across the Palearctic from the British Isles in the west, across central and northern Europe over Russia, Siberia to China. The species is only locally distributed in central Europe, but is often relatively common in this region. In southern Europe, the occurrence is limited to some mountainous regions. In Germany, it reaches as far as the summit regions of the low mountain ranges. The species is moisture loving and prefers moist, cool temperate forests, mixed forests, wooded valleys, river and stream edges as well as orchards.
The wingspan is 48–60 mm. Edward Meyrick describes it thus: Forewings pale brownish mixed with whitish and much sprinkled with black; veins marked with blackish; first, median, and second lines dark fuscous; reniform whitish, black edged, enclosing two dark marks; claviform, oval, black edged. Hindwings whitish fuscous, with dark fuscous discal spot and terminal dots. Larva pale yellow green deeper laterally; tubercular dots pale yellow; an oblique lateral streak on 4, and transverse streak on 12 yellow; legs more or less red. The larva habitually rests with the anterior segments strongly thrown back over the body and the legs outspread.
The moth flies from March to April.a The larvae feed on birch, willow, Populus tremula, Prunus padus, Lonicera xylosteum, Tilia, Rhamnus frangula and Aster species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Moscow | 🇷🇺 Russia |
Rare
Under 5% of wildlife watchers report a Rannoch Sprawler sighting in Moscow on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 774th most-seen of the 1111 insects we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Rannoch Sprawler in Moscow on a given day, so our monthly data shows no clear season.
Only Moscow, in our data
Moscow is the only city on Wallace's Line with enough records to rate Rannoch Sprawler sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Noctuidae
The closest relatives of the Rannoch Sprawler that you can see in Moscow (family Noctuidae, Cutworm Moths and Allies) are Large Yellow Underwing (about 10%), Sycamore Moth (about 10%) and Silver Υ (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Rannoch Sprawler is recorded against all the insects logged in Moscow (9 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.
