Agrochola macilenta
In 3 days ~10% in a week ~20%
Agrochola macilenta, the yellow-line Quaker, is a moth of the family Noctuidae. The species was first described by Jacob Hübner in 1809. It is found in Europe (except Russia) and in Asia Minor. The wingspan is 32–36 mm. Forewing ochreous washed with pale fulvous; the inner and outer lines very faint, marked chiefly by the dark teeth on the veins; a dark spot at the base of the wing; median shade variable; stigmata of the ground colour, with slight pale outlines, the lower end of the reniform nearly always black; submarginal line ochreous edged inwardly with rufous, nearly straight except for the angulation on vein 7; hindwing grey, the fringe rufous; — in the ab. nigrodentata Fuchs the basal, inner, and outer lines are all strongly marked, blackish and dentate.
The caterpillar is reddish brown with white dots, and three white lines on the back; the line along the spiracles is whitish with a dusky edge above. The head is ochreous brown and the plate on the first ring blackish lined with white.
The moth flies from September to December depending on the location. The larvae feed on various shrubs and deciduous trees, including Carpinus, Crataegus, Fagus, Populus, Prunus, Ulmus, Salix, Quercus, Calluna, Hieracium and Plantago. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Yellow-Line Quaker sighting in London on a given day, based on 20 verified sightings from GBIF citizen-science data. It is the 842nd most-seen of the 1504 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.
October and November
In those months about 10% of wildlife watchers report a Yellow-Line Quaker in London on a given day, against under 5% in December to September, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Yellow-Line Quaker sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Among the best
Of the 3 cities where we can rate Yellow-Line Quaker sightings, London ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Helsinki (Finland, under 5%).
Same genus: Agrochola
The closest relatives of the Yellow-Line Quaker that you can see in London (genus Agrochola) are Lunar Underwing (about 10%) and Beaded Chestnut (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Yellow-Line Quaker is recorded against all the insects logged in London (20 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.
