Dirioxa pornia
In 3 days ~10% in a week ~20%
Dirioxa pornia, commonly known as the island fly, is a species of fruit fly native to Australia. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Melbourne | 🇦🇺 Australia |
Rare
Under 5% of wildlife watchers report an Island Fly sighting in Melbourne on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 583rd most-seen of the 875 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 an Island Fly in Melbourne on a given day, so our monthly data shows no clear season.
Only Melbourne, in our data
Melbourne is the only city on Wallace's Line with enough records to rate Island Fly sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Island Fly is recorded against all the insects logged in Melbourne (11 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.
