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 Perth on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 227th most-seen of the 275 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.
June and October–November
In those months about 10% of wildlife watchers report a Common Gum Emerald in Perth on a given day, against under 5% in July–September and December–May, the lowest months.
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.
Yes
Of the 2 cities where we can rate Common Gum Emerald sightings, Perth has the highest daily chance: under 5%. Next come Melbourne (Australia, under 5%).
GBIF citizen-science records
It is estimated from how often the Common Gum Emerald is recorded against all the insects logged in Perth (6 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.
