Sphaerophoria rueppellii
In 3 days ~10% in a week ~30%
Sphaerophoria rueppellii is a European species of hoverfly. Larvae are predators of aphids, and the species has been commercialized for biological pest control of aphids. The larvae go through three instars. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Rueppell's Globetail sighting in Barcelona on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 229th most-seen of the 381 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.
March, June–July and October–December
In those months about 10% of wildlife watchers report a Rueppell's Globetail in Barcelona on a given day, against under 5% in January–February, April–May and August–September, the lowest months.
Yes
Of the 2 cities where we can rate Rueppell's Globetail sightings, Barcelona has the highest daily chance: under 5%. Next come London (United Kingdom, under 5%).
GBIF citizen-science records
It is estimated from how often the Rueppell's Globetail is recorded against all the insects logged in Barcelona (13 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.
