Acrobasis tumidana
In 3 days ~10% in a week ~20%
Acrobasis tumidana is a moth of the family Pyralidae. It was described in 1775 by Michael Denis and Ignaz Schiffermüller and is found in Europe. The wingspan is 19–24 mm. The moth flies in one generation from July to August.[1].
The larvae feed on oak. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Scarce Oak Knot-Horn sighting in Essen on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 381st most-seen of the 434 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.
August
In that month about 10% of wildlife watchers report a Scarce Oak Knot-Horn in Essen on a given day, against under 5% in September to July, the lowest months.
2nd of 4
Of the 4 cities where we can rate Scarce Oak Knot-Horn sightings, Essen ranks 2nd at under 5%. The best odds are in Sofia (Bulgaria, about 10%).
Same family: Pyralidae
The closest relatives of the Scarce Oak Knot-Horn that you can see in Essen (family Pyralidae, Pyralid Snout Moths) are Indian-Meal Moth (about 10%), Clover Hayworm Moth (about 10%) and Meal Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Scarce Oak Knot-Horn is recorded against all the insects logged in Essen (5 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.
