Esperia sulphurella
In 3 days ~10% in a week ~30%
Esperia sulphurella, also known as the sulphur tubic, is a species of gelechioid moth in the family Oecophoridae. It is native to Europe, but has been introduced in California. Adults have a body length of 6–8 millimetres (0.24–0.31 in), and its wingspan is 12–16 millimetres (0.47–0.63 in). The wingspan is between 12 and 16 millimeters. They have a dark brown ground colour. The forewing has a pale yellow marking. The predominantly pale yellow hind wings are dark brown at the tips. At about two-thirds of the length of the antennae, the antennae have a white band.
They are on wing in spring. The larvae are black and feed on dead wood. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 2 | Wadden Sea National Park | 🇩🇪 Germany |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | London | 🇬🇧 United Kingdom | |
| 2 | Birmingham | 🇬🇧 United Kingdom | |
| 3 | Rome | 🇮🇹 Italy | |
| 4 | Istanbul | 🇹🇷 Turkey | |
| 5 | Brussels | 🇧🇪 Belgium | |
| 6 | Paris | 🇫🇷 France | |
| 7 | Liverpool | 🇬🇧 United Kingdom | |
| 8 | Lyon | 🇫🇷 France | |
| 9 | Sacramento | 🇺🇸 United States | |
| 10 | Essen | 🇩🇪 Germany |
Rare
Under 5% of wildlife watchers report a Sulphur Tubic sighting in Wadden Sea National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 486th most-seen of the 818 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
April and May
In those months about 10% of wildlife watchers report a Sulphur Tubic in Wadden Sea National Park on a given day, against under 5% in June to March, the lowest months. Those are among Wadden Sea National Park's driest months, with about 45 mm of rain a month against 140 mm in November.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Sulphur Tubic sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 parks where we can rate Sulphur Tubic sightings, Wadden Sea National Park ranks 2nd at under 5%. The best odds are in Snowdonia National Park (United Kingdom, about 10%).
Same family: Oecophoridae
The closest relatives of the Sulphur Tubic that you can see in Wadden Sea National Park (family Oecophoridae, Concealer Moths) are Brown House Moth (about 10%) and White-Shouldered House Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Sulphur Tubic is recorded against all the insects logged in Wadden Sea National Park (9 verified sightings from 2019 to 2026), 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.
