Prasinocyma rhodocosma
In 3 days ~30% in a week ~60%
Prasinocyma rhodocosma, the northern emerald, is a species of moth of the family Geometridae first described by Edward Meyrick in 1888. It is found in Australia in northern Western Australia, the Northern Territory, Queensland and New South Wales.
The wingspan is about 30 mm. The larvae feed on young shoots and leaves of Eucalyptus species Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Lamington National Park | 🇦🇺 Australia | |
| 2 | Blue Mountains National Park | 🇦🇺 Australia |
With luck
About 10% of wildlife watchers report a Northern Emerald sighting in Lamington National Park on a given day, based on 14 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 125th most-seen of the 430 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
February
In that month about 30% of wildlife watchers report a Northern Emerald in Lamington National Park on a given day, against under 5% in May to December, the lowest months. That is one of Lamington National Park's wettest months, with about 160 mm of rain against 40 mm in August.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Northern Emerald sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Yes
Of the 2 parks where we can rate Northern Emerald sightings, Lamington National Park has the highest daily chance: about 10%. Next come Blue Mountains National Park (Australia, about 10%).
Same family: Geometridae
The closest relatives of the Northern Emerald that you can see in Lamington National Park (family Geometridae, Geometer Moths) are Southern Bracca (about 20%), Comostola laesaria (about 10%) and Neat Epidesmia (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Northern Emerald is recorded against all the insects logged in Lamington National Park (14 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.
