Longleaf Wattle Gall Wasp

Longleaf Wattle Gall Wasp

Trichilogaster acaciaelongifoliae

Daily sighting probability <5% · Rare
at Sydney

In 3 days ~10% in a week ~30%

36 Verified sightings at Sydney
280 In all 6 parks From 2019 to 2026
September Best month
☀️ Diurnal When it's spotted

About the Longleaf Wattle Gall Wasp

Trichilogaster acaciaelongifoliae is an Australian bud-galling wasp from the family Melanosomellidae that parasitises, among others, Acacia longifolia (long-leaved wattle, or Sydney golden wattle), which has become an invasive pest in several countries. T. acaciaelongifoliae has been introduced into South Africa in 1985 and into Portugal in 2015 as a successful biological control agent of A. longifolia. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Grampians National Park 🇦🇺 Australia
~30%
2 Freycinet National Park 🇦🇺 Australia
~20%
3 Table Mountain National Park 🇿🇦 South Africa
~10%
4 Garden Route National Park 🇿🇦 South Africa
~10%
5 Royal National Park 🇦🇺 Australia
~10%
6 Great Otway National Park 🇦🇺 Australia
~10%

Cities Where Found

# City Country Daily sighting probability
1 Hobart 🇦🇺 Australia
~10%
2 Porto 🇵🇹 Portugal
~10%
3 Melbourne 🇦🇺 Australia
<5%
4 Sydney 🇦🇺 Australia
<5%
5 Lisbon 🇵🇹 Portugal
<5%
6 Cape Town 🇿🇦 South Africa
<5%

Before you go

What are the chances of seeing a Longleaf Wattle Gall Wasp in Sydney?

Rare

Under 5% of wildlife watchers report a Longleaf Wattle Gall Wasp sighting in Sydney on a given day, based on 36 verified sightings from GBIF citizen-science data. It is the 230th 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 30%, if each day is a fresh chance.

When is the best time to see a Longleaf Wattle Gall Wasp in Sydney?

August to October

In those months about 10% of wildlife watchers report a Longleaf Wattle Gall Wasp in Sydney on a given day, against under 5% in November to July, the lowest months.

What time of day is best to see a Longleaf Wattle Gall Wasp?

Between 10 am and 1 pm

Across all the parks we cover, that three-hour window holds the most Longleaf Wattle Gall Wasp sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.

Is Sydney the best place to see a Longleaf Wattle Gall Wasp?

4th of 6

Of the 6 cities where we can rate Longleaf Wattle Gall Wasp sightings, Sydney ranks 4th at under 5%. The best odds are in Hobart (Australia, about 10%), Porto (Portugal, about 10%) and Melbourne (Australia, under 5%).

Which relatives of the Longleaf Wattle Gall Wasp live in Sydney?

Same order: Hymenoptera

The closest relatives of the Longleaf Wattle Gall Wasp that you can see in Sydney (order Hymenoptera, Ants, Bees, Wasps, and Sawflies) are Jumping Jack Ant (about 20%), Asian Paper Wasp (about 10%) and Green-Head Ant (about 10%), with each one's daily chance of a sighting.

Where does the Longleaf Wattle Gall Wasp sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Longleaf Wattle Gall Wasp is recorded against all the insects logged in Sydney (36 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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