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Sticker of Australian leafroller tachinid
Bug card No. 0219 of 4,939

Australian leafroller tachinid

Trigonospila brevifacies

The Australian leafroller tachinid is a fly from eastern Australia. It is mostly black, with shiny pearly white or golden stripes across its body. Farmers like it, because its babies grow inside the caterpillars of moths that damage crops.

Lives in
Eastern Australia, from Tasmania to Queensland, and also New Zealand
Top speed
about 8 km/h (5 mph)
Flying, estimate
Can it hurt you?
Harmless
Harmless. It does not bite or sting people.
What does it eat?
Its babies grow inside the caterpillars of moths and butterflies and feed on them.
For real!Photo of Australian leafroller tachinid
Picture by Trigonospila_brevifacies_1.jpg : John Tann from Sydney, Australia derivative work: Berichard ( talk ). CC BY 2.0, via Wikimedia Commons.

How fast is it?

cool stuff

Fun facts

1

People brought it to New Zealand on purpose between 1967 and 1973 to fight farm pests like the light brown apple moth.

2

Its young can grow in the caterpillars of at least 18 different kinds of moths.

3

In New Zealand it also competes with the local helper insects that were there first.

4

The sides of its body are yellow.

5

It is often mixed up with a cousin that looks very similar, but the cousin has neat, unbroken stripes.

you asked

Most asked questions about Australian leafroller tachinid

?Is the Australian leafroller tachinid dangerous?

No. It is a fly that does not bite or sting people.

?Why did people bring it to New Zealand?

To help farmers, because its young grow inside the caterpillars of pest moths.

For bug experts

Scientific name
Trigonospila brevifacies
Group
Flies and mosquitoes
Family
Tachinidae
Classification
Insecta > Diptera > Tachinidae
Lives on
Australia and Oceania
Also known as
Australian leaf-roller fly, Leafroller fly

Where the facts come from

  1. Trigonospila brevifacies (Wikipedia, CC BY-SA 4.0): what it looks like, where it lives, what it eats, sizes and fun facts, retold in simple words.
  2. Picture by Trigonospila_brevifacies_1.jpg : John Tann from Sydney, Australia derivative work: Berichard ( talk ). CC BY 2.0, Wikimedia Commons. The sticker of this bug is drawn from this picture.

If we got something wrong, sorry, we are bug fans, not a science journal. Tell us at [email protected] and we will fix it.

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