Southern Armyworm

Southern Armyworm

Persectania ewingii

Daily sighting probability ~20% · Possible
at Great Otway National Park

In 3 days ~40% in a week ~70%

55 Verified sightings at Great Otway National Park From 2019 to 2026
61 In all 2 parks
November Best month
🌙 Nocturnal When it's spotted

About the Southern Armyworm

Persectania ewingii, commonly known as the southern armyworm, is a species of moth in the family Noctuidae. It is found in the southern and eastern regions of Australia and often migrates across the Bass Strait to Tasmania.

The wingspan of Persectania ewingii is approximately 40 mm. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Great Otway National Park 🇦🇺 Australia
~20%
2 Blue Mountains National Park 🇦🇺 Australia
<5%

Cities Where Found

# City Country Daily sighting probability
1 Melbourne 🇦🇺 Australia
~10%

Before you go

What are the chances of seeing a Southern Armyworm in Great Otway National Park?

Possible

About 20% of wildlife watchers report a Southern Armyworm sighting in Great Otway National Park on a given day, based on 55 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 25th most-seen of the 418 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.

When is the best time to see a Southern Armyworm in Great Otway National Park?

November

In that month about 30% of wildlife watchers report a Southern Armyworm in Great Otway National Park on a given day, against under 5% in June and July, the lowest months.

What time of day is best to see a Southern Armyworm?

Between 8 and 11 pm

Across all the parks we cover, that three-hour window holds the most Southern Armyworm sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.

Is Great Otway National Park the best place to see a Southern Armyworm?

Yes

Of the 2 parks where we can rate Southern Armyworm sightings, Great Otway National Park has the highest daily chance: about 20%. Next come Blue Mountains National Park (Australia, under 5%).

Which relatives of the Southern Armyworm live in Great Otway National Park?

Same family: Noctuidae

The closest relatives of the Southern Armyworm that you can see in Great Otway National Park (family Noctuidae, Cutworm Moths and Allies) are Bogong Moth (about 20%), Brown Cutworm (about 10%) and Green-Blotched Moth (about 10%), with each one's daily chance of a sighting.

Where does the Southern Armyworm sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Southern Armyworm is recorded against all the insects logged in Great Otway National Park (55 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.

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