Phycita roborella
In 3 days ~20% in a week ~40%
Phycita roborella is a moth of the family Pyralidae. It is – under its junior synonym Tinea spissicella – the type species of its genus Phycita, and by extension of the subfamily Phycitinae. It is found in Europe. The wingspan is 24–29 mm.The forewings are fuscous, mixed or tinged with reddish and sprinkled with grey whitish, more whitish-suffused towards dorsum between lines;
an erect triangular reddish-brown blackish-mixed patch from dorsum before first line, often preceded by a whitish shade; first and second lines pale, internally darker-edged; a curved darker transverse discal mark; some short black dashes on veins near before second line. Hindwings fuscous.The larva is brown-reddish, yellowish-freckled; subdorsal and lateral lines darker; head reddish-brown; 2 black-spotted; a white black ringed lateral spot on 3: amongst spun leaves of oak.
The moth flies in one generation from the end of June to September [1]. The caterpillars feed on oak, apple and pear. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 2 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 3 | Wadden Sea National Park | 🇩🇪 Germany | |
| 4 | Pyrénées National Park | 🇫🇷 France |
With luck
About 10% of wildlife watchers report a Dotted Oak Knot-Horn sighting in London on a given day, based on 104 verified sightings from GBIF citizen-science data. It is the 337th most-seen of the 1504 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
June to August
In those months about 10% of wildlife watchers report a Dotted Oak Knot-Horn in London on a given day, against under 5% in September to May, the lowest months.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Dotted Oak Knot-Horn sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Yes
Of the 4 cities where we can rate Dotted Oak Knot-Horn sightings, London has the highest daily chance: about 10%. Next come Essen (Germany, about 10%) and Liverpool (United Kingdom, under 5%).
Same family: Pyralidae
The closest relatives of the Dotted Oak Knot-Horn that you can see in London (family Pyralidae, Pyralid Snout Moths) are Rosy Tabby (about 10%), Bee Moth (about 10%) and Grey Knot-Horn (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dotted Oak Knot-Horn is recorded against all the insects logged in London (104 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.
