Long-Tailed Bombyx

Long-Tailed Bombyx

Trichiocercus sparshalli

Endemic
Daily sighting probability <5% · Rare
at Sydney

In 3 days ~10% in a week ~20%

14 Verified sightings at Sydney
53 In all 4 parks From 2019 to 2026
March Best month
☀️🌙 Day & Night When it's spotted

About the Long-Tailed Bombyx

Trichiocercus sparshalli, the long-tailed bombyx or Sparshall's moth, is a moth of the family Notodontidae. It was first described by John Curtis in 1830 and it is found in Australia. The wingspan is about 40 mm. The larvae feed on Eucalyptus cinerea, Eucalyptus leucoxylon, Eucalyptus polyanthemos and Lophostemon confertus. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Springbrook National Park 🇦🇺 Australia
~10%
2 Kosciuszko National Park 🇦🇺 Australia
~10%
3 Great Otway National Park 🇦🇺 Australia
~10%
4 Blue Mountains National Park 🇦🇺 Australia
~10%

Cities Where Found

# City Country Daily sighting probability
1 Perth 🇦🇺 Australia
~10%
2 Melbourne 🇦🇺 Australia
~10%
3 Sydney 🇦🇺 Australia
<5%
4 Brisbane 🇦🇺 Australia
<5%

Before you go

What are the chances of seeing a Long-Tailed Bombyx in Sydney?

Rare

Under 5% of wildlife watchers report a Long-Tailed Bombyx sighting in Sydney on a given day, based on 14 verified sightings from GBIF citizen-science data. It is the 393rd most-seen of the 742 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.

When is the best time to see a Long-Tailed Bombyx in Sydney?

Any time of year

In every month with enough records, under 5% of wildlife watchers report a Long-Tailed Bombyx in Sydney on a given day, so our monthly data shows no clear season.

What time of day is best to see a Long-Tailed Bombyx?

Between 8 and 11 pm

Across all the parks we cover, that three-hour window holds the most Long-Tailed Bombyx 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.

Is Sydney the best place to see a Long-Tailed Bombyx?

3rd of 4

Of the 4 cities where we can rate Long-Tailed Bombyx sightings, Sydney ranks 3rd at under 5%. The best odds are in Perth (Australia, about 10%) and Melbourne (Australia, about 10%).

Where does the Long-Tailed Bombyx sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Long-Tailed Bombyx is recorded against all the insects logged in Sydney (14 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.

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