Phtheochroa rugosana
In 3 days ~10% in a week ~20%
Phtheochroa rugosana is a small moth of the family Tortricidae. It is found in western Europe (Iberian Peninsula, France and the British Isles) east to the Benelux, Switzerland and Italy, and further across the Balkans and Hungary to Asia Minor and Armenia. It also occurs in the Maghreb (possibly excluding Tunisia) and on the Canary Islands.
The wingspan is 18–23 mm. Adults are on wing from May to July. There is one generation per year. The caterpillars feed on red bryony (Bryonia dioica) and probably also squirting cucumber (Ecballium elaterium). More unusually, they have been recorded eating rotting wood. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Porto | 🇵🇹 Portugal |
Rare
Under 5% of wildlife watchers report a Rough-Winged Conch sighting in Porto on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 395th most-seen of the 498 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.
April and July
In those months about 10% of wildlife watchers report a Rough-Winged Conch in Porto on a given day, against under 5% in May–June and August–March, the lowest months.
Only Porto, in our data
Porto is the only city on Wallace's Line with enough records to rate Rough-Winged Conch sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Rough-Winged Conch is recorded against all the insects logged in Porto (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.
