Scopula perlata
In 3 days ~20% in a week ~30%
Scopula perlata, the cream wave, is a moth of the family Geometridae. The species was first described by Francis Walker in 1861. It is found in Australia (including Tasmania, New South Wales, South Australia and Victoria), as well as Indonesia.
The wingspan is about 20 mm. The larvae have been reared on Myosotis arvensis. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Otway National Park | 🇦🇺 Australia | |
| 2 | Blue Mountains National Park | 🇦🇺 Australia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Melbourne | 🇦🇺 Australia |
With luck
About 10% of wildlife watchers report an Australian Cream Wave sighting in Melbourne on a given day, based on 94 verified sightings from GBIF citizen-science data. It is the 150th most-seen of the 875 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
April and September–January
In those months about 10% of wildlife watchers report an Australian Cream Wave in Melbourne on a given day, against under 5% in February–March and May–August, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Australian Cream Wave sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is seen both by day and at night.
Only Melbourne, in our data
Melbourne is the only city on Wallace's Line with enough records to rate Australian Cream Wave sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Australian Cream Wave is recorded against all the insects logged in Melbourne (94 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.
