Anorthoa munda
In 3 days ~10% in a week ~20%
Perigrapha munda, the twin-spotted Quaker, is a species of moth of the family Noctuidae. The wings are gray, with two closely approximate and very conspicuous dark spots on the disc of the fore wings. a small dark apical mark at the costal edge and a discal spot on the fuscous hindwings. It is found in Palearctic realm (all Europe (absent only in the North and in the South), Russia, and Asia as far east as Japan).
The wingspan is 38–44 mm. The moth flies from March to May depending on the location. The larvae feed on oak, willow, Populus tremula, Fraxinus excelsior, Acer campestre, Humulus lupulus and honeysuckle. The nectar-feeding adults visit sallow blossom. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 2 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 3 | Pyrénées National Park | 🇫🇷 France |
Rare
Under 5% of wildlife watchers report a Twin-Spotted Quaker sighting in Nizhny Novgorod on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 351st most-seen of the 405 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.
April
In that month about 10% of wildlife watchers report a Twin-Spotted Quaker in Nizhny Novgorod on a given day, against under 5% in May to March, the lowest months.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Twin-Spotted Quaker 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.
4th of 9
Of the 9 cities where we can rate Twin-Spotted Quaker sightings, Nizhny Novgorod ranks 4th at under 5%. The best odds are in Prague (Czechia, about 10%), Paris (France, under 5%) and Vienna (Austria, under 5%).
Same family: Noctuidae
The closest relatives of the Twin-Spotted Quaker that you can see in Nizhny Novgorod (family Noctuidae, Cutworm Moths and Allies) are Knot Grass Moth (about 10%), Heart And Dart (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 Twin-Spotted Quaker is recorded against all the insects logged in Nizhny Novgorod (8 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.
