Ceriana vespiformis
In 3 days ~20% in a week ~40%
Ceriana vespiformis is a species of hoverfly. It is a typical wasp mimic, is 10–11 mm long, and has very long antennae for a hoverfly. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Ceriana vespiformis sighting in Barcelona on a given day, based on 42 verified sightings from GBIF citizen-science data. It is the 152nd most-seen of the 381 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
July
In that month about 20% of wildlife watchers report a Ceriana vespiformis in Barcelona on a given day, against under 5% in October to May, the lowest months.
Yes
Of the 3 cities where we can rate Ceriana vespiformis sightings, Barcelona has the highest daily chance: about 10%. Next come Madrid (Spain, under 5%) and Lisbon (Portugal, under 5%).
Same family: Syrphidae
The closest relatives of the Ceriana vespiformis that you can see in Barcelona (family Syrphidae, Hover Flies) are Marmalade Hover Fly (about 20%), Common Drone Fly (about 10%) and Stripe-Eyed Lagoon Fly (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Ceriana vespiformis is recorded against all the insects logged in Barcelona (42 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.
