Paraswammerdamia lutarea
In 3 days ~10% in a week ~20%
Paraswammerdamia lutarea is a moth of the family Yponomeutidae. It is found in Europe. The wingspan is 11–14 mm. The head is white, sometimes ochreous-tinged. Thorax fuscous, sometimes whitish-sprinkled. Forewings are fuscous-whitish, closely irrorated with dark fuscous; some longitudinal series of indistinct dark fuscous dots; a dark fuscous entire fascia before middle; a white costal spot before apex; cilia fuscous, with two darker lines. Hindwings are fuscous. The larva is deep brown; subdorsal line white, orange-spotted; spiracular white, on 5-1 2 orange-spotted above; head ochreous-brown, blackish-marked.
Adults are on wing in July depending on the location. The larvae feed on Crataegus, Sorbus aucuparia, Rosa and Cotoneaster horizontalis. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | London | 🇬🇧 United Kingdom |
Rare
Under 5% of wildlife watchers report a Hawthorn Ermel sighting in London on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 1109th 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Hawthorn Ermel in London on a given day, so our monthly data shows no clear season.
Only London, in our data
London is the only city on Wallace's Line with enough records to rate Hawthorn Ermel sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Yponomeutidae
The closest relatives of the Hawthorn Ermel that you can see in London (family Yponomeutidae, Ermine Moths) are Bird-Cherry Ermine (about 10%), Hawthorn Moth (about 10%) and Spindle Ermine Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Hawthorn Ermel is recorded against all the insects logged in London (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.
