Cystosoma saundersii
In 3 days ~10% in a week ~30%
Cystosoma saundersii, commonly known as the bladder cicada, is a species of cicada native to New South Wales and Queensland in Australia. Cystosoma saundersii is nocturnal and employs camouflage as a defence tactic. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Lamington National Park | 🇦🇺 Australia | |
| 2 | Springbrook National Park | 🇦🇺 Australia | |
| 3 | Blue Mountains National Park | 🇦🇺 Australia |
Rare
Under 5% of wildlife watchers report a Bladder Cicada sighting in Blue Mountains National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 554th most-seen of the 789 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.
September to January
In those months about 10% of wildlife watchers report a Bladder Cicada in Blue Mountains National Park on a given day, against under 5% in February to August, the lowest months.
Between 6 and 9 pm
Across all the parks we cover, that three-hour window holds the most Bladder Cicada sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is most active around dawn and dusk.
3rd of 3
Of the 3 parks where we can rate Bladder Cicada sightings, Blue Mountains National Park ranks 3rd at under 5%. The best odds are in Lamington National Park (Australia, about 10%) and Springbrook National Park (Australia, about 10%).
Same family: Cicadidae
The closest relatives of the Bladder Cicada that you can see in Blue Mountains National Park (family Cicadidae, Typical Cicadas) are Green Grocer (about 40%), Razor Grinder (about 20%) and Floury Baker (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Bladder Cicada is recorded against all the insects logged in Blue Mountains National Park (7 verified sightings from 2019 to 2026), 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.
