Drepana curvatula
In 3 days ~10% in a week ~30%
Drepana curvatula, the dusky hook-tip, is a moth of the family Drepanidae. It was first described by Moritz Balthasar Borkhausen in 1790 and it is found from Europe to Japan. The wingspan is 34–42 mm. The moth flies from May to August depending on the location.
The larvae feed on alder, oak and birch. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Pyrénées National Park | 🇫🇷 France | |
| 2 | Wadden Sea National Park | 🇩🇪 Germany |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Porto | 🇵🇹 Portugal |
Rare
Under 5% of wildlife watchers report a Dusky Hook-Tip sighting in Wadden Sea National Park on a given day, based on 12 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 408th 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.
July and August
In those months about 10% of wildlife watchers report a Dusky Hook-Tip in Wadden Sea National Park on a given day, against under 5% in September to June, the lowest months.
Between 11 pm and 2 am
Across all the parks we cover, that three-hour window holds the most Dusky Hook-Tip sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is most active around dawn and dusk.
2nd of 2
Of the 2 parks where we can rate Dusky Hook-Tip sightings, Wadden Sea National Park ranks 2nd at under 5%. The best odds are in Pyrénées National Park (France, about 10%).
GBIF citizen-science records
It is estimated from how often the Dusky Hook-Tip is recorded against all the insects logged in Wadden Sea National Park (12 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.
