Idaea halmaea
In 3 days ~10% in a week ~20%
Idaea halmaea, the two-spotted wave, is a moth of the family Geometridae. The species was first described by Edward Meyrick in 1888. It is found in Australia, including Tasmania. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Blue Mountains National Park | 🇦🇺 Australia | |
| 2 | Lamington National Park | 🇦🇺 Australia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Melbourne | 🇦🇺 Australia |
Rare
Under 5% of wildlife watchers report an Idaea halmaea sighting in Melbourne on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 619th 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 Idaea halmaea in Melbourne on a given day, so our monthly data shows no clear season.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Idaea halmaea sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Melbourne, in our data
Melbourne is the only city on Wallace's Line with enough records to rate Idaea halmaea sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Idaea halmaea 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.
