What are the chances of seeing a Hectobrocha pentacyma in Blue Mountains National Park?
With luck
About 10% of wildlife watchers report a Hectobrocha pentacyma sighting in Blue Mountains National Park on a given day, based on 34 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 93rd most-seen of the 789 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
When is the best time to see a Hectobrocha pentacyma in Blue Mountains National Park?
November
In that month about 20% of wildlife watchers report a Hectobrocha pentacyma in Blue Mountains National Park on a given day, against under 5% in April to September, the lowest months.
What time of day is best to see a Hectobrocha pentacyma?
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most Hectobrocha pentacyma sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Is Blue Mountains National Park the best place to see a Hectobrocha pentacyma?
Yes
Of the 3 parks where we can rate Hectobrocha pentacyma sightings, Blue Mountains National Park has the highest daily chance: about 10%. Next come Lamington National Park (Australia, about 10%) and Springbrook National Park (Australia, about 10%).
Which relatives of the Hectobrocha pentacyma live in Blue Mountains National Park?
Same family: Erebidae
The closest relatives of the Hectobrocha pentacyma that you can see in Blue Mountains National Park (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Light Ermine Moth (about 10%), Bird Dropping Lichen Moth (about 10%) and Tigrioides alterna (about 10%), with each one's daily chance of a sighting.
Where does the Hectobrocha pentacyma sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Hectobrocha pentacyma is recorded against all the insects logged in Blue Mountains National Park (34 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.