Longleaf Wattle Gall Wasp

Longleaf Wattle Gall Wasp

Trichilogaster acaciaelongifoliae

Daily sighting probability ~10% · With luck
at Garden Route National Park

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

36 Verified sightings at Garden Route National Park From 2019 to 2026
280 In all 6 parks
August 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 Garden Route National Park?

With luck

About 10% of wildlife watchers report a Longleaf Wattle Gall Wasp sighting in Garden Route National Park on a given day, based on 36 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 61st most-seen of the 298 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 Longleaf Wattle Gall Wasp in Garden Route National Park?

August

In that month about 20% of wildlife watchers report a Longleaf Wattle Gall Wasp in Garden Route National Park on a given day, against about 10% in September 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 Garden Route National Park the best place to see a Longleaf Wattle Gall Wasp?

4th of 6

Of the 6 parks where we can rate Longleaf Wattle Gall Wasp sightings, Garden Route National Park ranks 4th at about 10%. The best odds are in Grampians National Park (Australia, about 30%), Freycinet National Park (Australia, about 20%) and Table Mountain National Park (South Africa, about 10%).

Which relatives of the Longleaf Wattle Gall Wasp live in Garden Route National Park?

Same order: Hymenoptera

The closest relatives of the Longleaf Wattle Gall Wasp that you can see in Garden Route National Park (order Hymenoptera, Ants, Bees, Wasps, and Sawflies) are Big Red Large Carpenter Bee (about 20%), Polistes badius (about 10%) and Java caroliwaterhousei (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 Garden Route National Park (36 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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