Ceriana ornata
In 3 days ~10% in a week ~20%
Ceriana ornata is an Australian species of hoverfly in the family Syrphidae. Resembling a wasp, this hoverfly preys on other insects including Australian native bees and the planthopper. C. ornata can be distinguished from wasps by its distinct Y-shaped antenna, large compound eyes and only has two wings. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sydney | 🇦🇺 Australia |
Rare
Under 5% of wildlife watchers report a Wasp-Mimic Hoverfly sighting in Sydney on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 666th most-seen of the 742 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Wasp-Mimic Hoverfly in Sydney on a given day, so our monthly data shows no clear season.
Only Sydney, in our data
Sydney is the only city on Wallace's Line with enough records to rate Wasp-Mimic Hoverfly sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Syrphidae
The closest relatives of the Wasp-Mimic Hoverfly that you can see in Sydney (family Syrphidae, Hover Flies) are Yellow-Shouldered Stout Hover Fly (about 10%) and Native Drone Fly (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Wasp-Mimic Hoverfly is recorded against all the insects logged in Sydney (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.
