Physeema quadricincta
In 3 days ~20% in a week ~50%
Physeema quadricincta is a species of cicada, also known as the tick-tock, in the true cicada family, Cicadettinae subfamily and Cicadettini tribe. The species is endemic to Australia. It was described in 1850 by English entomologist Francis Walker. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Perth | 🇦🇺 Australia |
With luck
About 10% of wildlife watchers report a Tick-Tock sighting in Perth on a given day, based on 44 verified sightings from GBIF citizen-science data. It is the 50th most-seen of the 275 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
November
In that month about 20% of wildlife watchers report a Tick-Tock in Perth on a given day, against under 5% in March to August, the lowest months. That is one of Perth's driest months, with about 25 mm of rain against 130 mm in July.
Only Perth, in our data
Perth is the only city on Wallace's Line with enough records to rate Tick-Tock sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Tick-Tock is recorded against all the insects logged in Perth (44 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.
