Long-Tailed Bombyx

Long-Tailed Bombyx

Trichiocercus sparshalli

Endemic
Daily sighting probability ~10% · With luck
at Perth

In 3 days ~30% in a week ~50%

60 Verified sightings at Perth
53 In all 4 parks From 2019 to 2026
October 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 Perth?

With luck

About 10% of wildlife watchers report a Long-Tailed Bombyx sighting in Perth on a given day, based on 60 verified sightings from GBIF citizen-science data. It is the 35th most-seen of the 275 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 Long-Tailed Bombyx in Perth?

September and October

In those months about 20% of wildlife watchers report a Long-Tailed Bombyx in Perth on a given day, against under 5% in February–April, July and December, the lowest months.

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 Perth the best place to see a Long-Tailed Bombyx?

Yes

Of the 4 cities where we can rate Long-Tailed Bombyx sightings, Perth has the highest daily chance: about 10%. Next come Melbourne (Australia, about 10%) and Sydney (Australia, under 5%).

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 Perth (60 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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