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Sticker of Giant vinegaroon
Bug card No. 0615 of 1,500

Giant vinegaroon

Mastigoproctus giganteus
Eats: Other bugs and small animalsScorpions, ticks and friendsDeserts and dry places8 legsNot an insect, but a bug cousin

The giant vinegaroon looks a bit like a scorpion with a long thin whip for a tail. It has big claws at the front and two extra long feeler legs. When it is scared, it sprays a mist that smells just like vinegar.

Fun fact: this one is not an insect. It is an arachnid with eight legs, a cousin of the spiders.
Lives in
The southern United States and Mexico
Length
4 to 6 cm (1.6 to 2.4 in)
without the tail
Top speed
about 2 km/h (1.2 mph)
On foot, estimate
Can it hurt you?
Can bite or sting
What does it eat?
At night it hunts crickets, cockroaches, millipedes, worms and slugs, and it even eats scorpions and small frogs.
For real!Photo of Giant vinegaroon
Picture by Jbjensen1. CC BY 4.0, via Wikimedia Commons.

How big is it?

How long is it?

Giant vinegaroon about 6 cm long (2.4 in)A toy building brick about 3.2 cm (1.3 in)A crayon about 9 cm (3.5 in)A banana about 18 cm (7.1 in)
as long as 2 toy building bricks in a rowcould run across a dinner table in 1.8 seconds

How big is Giant vinegaroon compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

Its spray is mostly acetic acid, the same stuff that makes vinegar sour.

2

It has eight eyes, but they are very weak, so it finds its way by feeling with its long front legs and tail.

3

The mother takes care of about 40 babies and feeds them while they are little.

4

It can live for 4 to 7 years.

5

Farmers like it because it eats scorpions and other pests.

you asked

Most asked questions about Giant vinegaroon

?Why does it smell like vinegar?

It sprays acetic acid from the base of its tail, and that is what makes vinegar smell.

?What does a vinegaroon eat?

Insects like crickets and cockroaches, plus millipedes, slugs, scorpions and even small frogs.

For bug experts

Scientific name
Mastigoproctus giganteus
Named by
Lucas, 1835
Group
Scorpions, ticks and friends
Family
Thelyphonidae
Classification
Arachnida > Thelyphonida > Thelyphonidae
Lives on
North America
Also known as
Giant whip scorpion, Grampus, Texas giant vinegaroon

Where the facts come from

  1. Mastigoproctus giganteus (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 Jbjensen1. CC BY 4.0, Wikimedia Commons. The round sticker of this bug is cut from the same picture.

If we got something wrong, sorry, we are bug fans, not a science journal. Tell us at hello@bugwiki.app and we will fix it.

More from the same group: Scorpions, ticks and friends

Also at home here: Deserts and dry places