Parasaissetia nigra
In 3 days ~10% in a week ~20%
Parasaissetia nigra is a species of soft scale insect in the family Coccidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sydney | 🇦🇺 Australia | |
| 2 | Melbourne | 🇦🇺 Australia | |
| 3 | Brisbane | 🇦🇺 Australia | |
| 4 | Mexico City | 🇲🇽 México | |
| 5 | Los Angeles | 🇺🇸 United States | |
| 6 | San Diego | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Black Scale sighting in Sydney on a given day, based on 18 verified sightings from GBIF citizen-science data. It is the 347th 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 Black Scale in Sydney on a given day, so our monthly data shows no clear season.
Yes
Of the 6 cities where we can rate Black Scale sightings, Sydney has the highest daily chance: under 5%. Next come Melbourne (Australia, under 5%) and Brisbane (Australia, under 5%).
GBIF citizen-science records
It is estimated from how often the Black Scale is recorded against all the insects logged in Sydney (18 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.
