Prasinocyma semicrocea
In 3 days ~10% in a week ~20%
Prasinocyma semicrocea, the common gum emerald, is a moth of the family Geometridae. The species was first described by Francis Walker in 1861. It is found in Australia. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Otway National Park | 🇦🇺 Australia | |
| 2 | Blue Mountains National Park | 🇦🇺 Australia |
Rare
Under 5% of wildlife watchers report a Common Gum Emerald sighting in Melbourne on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 558th 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 a Common Gum Emerald in Melbourne on a given day, so our monthly data shows no clear season.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Common Gum Emerald sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Among the best
Of the 2 cities where we can rate Common Gum Emerald sightings, Melbourne ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Perth (Australia, under 5%).
Same family: Geometridae
The closest relatives of the Common Gum Emerald that you can see in Melbourne (family Geometridae, Geometer Moths) are Apple Looper (about 20%), Plantain Moth (about 20%) and Red-Lined Looper (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Common Gum Emerald is recorded against all the insects logged in Melbourne (12 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.
