Rondaniola bursaria
In 3 days ~10% in a week ~20%
Rondaniola bursaria is a species of fly in the family Cecidomyiidae, found in the Palearctic The larvae gall ground ivy (Glechoma hederacea). Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Lighthouse Gall sighting in Vienna on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 955th most-seen of the 1406 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.
October to December
In those months about 10% of wildlife watchers report a Lighthouse Gall in Vienna on a given day, against under 5% in January to September, the lowest months.
2nd of 3
Of the 3 cities where we can rate Lighthouse Gall sightings, Vienna ranks 2nd at under 5%. The best odds are in Minsk (Belarus, about 10%).
GBIF citizen-science records
It is estimated from how often the Lighthouse Gall is recorded against all the insects logged in Vienna (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.
