Musotima nitidalis
In 3 days ~10% in a week ~30%
Musotima nitidalis, also known as the golden brown fern moth, is a species of moth of the family Crambidae. This species was described by Francis Walker in 1866. It is native to Australia and New Zealand and was first found in Europe in 2009. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Booderee National Park | 🇦🇺 Australia | |
| 2 | Rakiura National Park | 🇳🇿 New Zealand | |
| 3 | Fiordland National Park | 🇳🇿 New Zealand | |
| 4 | Great Otway National Park | 🇦🇺 Australia | |
| 5 | Blue Mountains National Park | 🇦🇺 Australia |
Rare
Under 5% of wildlife watchers report a Golden-Brown Fern Moth sighting in Blue Mountains National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 611th most-seen of the 789 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
May–June, August and November
In those months about 10% of wildlife watchers report a Golden-Brown Fern Moth in Blue Mountains National Park on a given day, against under 5% in July, September–October and December–April, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Golden-Brown Fern Moth 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.
5th of 5
Of the 5 parks where we can rate Golden-Brown Fern Moth sightings, Blue Mountains National Park ranks 5th at under 5%. The best odds are in Booderee National Park (Australia, about 10%), Rakiura National Park (New Zealand, about 10%) and Fiordland National Park (New Zealand, about 10%).
Same family: Pyralidae
The closest relatives of the Golden-Brown Fern Moth that you can see in Blue Mountains National Park (family Pyralidae, Pyralid Snout Moths) are Small Tabby (about 10%), Meyriccia latro (about 10%) and Spectrotrota fimbrialis (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Golden-Brown Fern Moth is recorded against all the insects logged in Blue Mountains National Park (6 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.
