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Sticker of Australian dewdrop spider
Bug card No. 0209 of 4,939

Australian dewdrop spider

Argyrodes antipodianus
Name means: “it is named for its shiny silver body, which looks like a drop of dew”
Eats: Other bugs and small animalsSpidersGardens and meadows8 legsNot an insect, but a bug cousin

The Australian dewdrop spider is a tiny spider with a shiny silver body shaped like a little cone. It does not catch its own food in its own web. Instead it sneaks into the webs of big spiders and steals their leftovers.

Fun fact: spiders are not insects. Insects have six legs, spiders have eight. Everyone calls them bugs anyway!
Lives in
Eastern Australia, New Caledonia and most of New Zealand, in the webs of other spiders
Length
2 to 3 mm (0.08 to 0.12 in)
Top speed
about 0.66 km/h (0.41 mph)
On foot, estimate
What does it eat?
It eats small insects that it steals from the webs of bigger orb-weaving spiders.
For real!Photo of Australian dewdrop spider
Picture by iNaturalist username: flossiepip. CC BY 4.0, via Wikimedia Commons.

How big is it?

How long is it?

Australian dewdrop spider about 3 mm long (0.12 in)A grain of rice about 6 mm (0.24 in)
small enough to sit on your fingernailcould run across a dinner table in 5.5 secondsmoves 61 times its own body length every second

How big is Australian dewdrop spider compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

It lives on the webs of big orb-weaving spiders, like the golden orb-weavers, and steals small insects from them.

2

It builds its own thin support web so it can move about without the big spider feeling it.

3

Sometimes it even eats from the same insect while the big spider is eating it.

4

Spiders that have dewdrop spiders on their web grow more slowly and have to move their web more often.

5

It does not live in the cold southern half of New Zealand's South Island, maybe because it likes warmth.

you asked

Most asked questions about Australian dewdrop spider

?Why is it called a dewdrop spider?

Because its shiny silver body looks like a little drop of dew.

?What does the dewdrop spider eat?

Small insects that it steals from the webs of bigger spiders.

For bug experts

Scientific name
Argyrodes antipodianus
Named by
O. Pickard-Cambridge, 1880
Group
Spiders
Family
Theridiidae
Classification
Arachnida > Araneae > Theridiidae
Lives on
Australia and Oceania
Also known as
Dew drop spider

Where the facts come from

  1. Argyrodes antipodianus (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 iNaturalist username: flossiepip. CC BY 4.0, 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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