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Sticker of Odorous house ant
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Odorous house ant

Tapinoma sessile
Name means: “sessile means sitting, because the back part of its body sits right on top of its thin waist”
Eats: A bit of everythingAntsHouses and farms6 legs

The odorous house ant is a tiny brown or black ant that loves sweet things. It often marches into kitchens looking for sugar and water. If you squash one, it smells like a rotten coconut.

Lives in
North America, from southern Canada to northern Mexico, outdoors and in houses
Length
1.5 to 3.2 mm (0.06 to 0.13 in)
Top speed
about 0.24 km/h (0.15 mph)
On foot, estimate
What does it eat?
It loves sugary food like sweet honeydew from aphids, flower nectar and spilled sweets. It also likes a bit of protein.
For real!Photo of Odorous house ant
Picture by AntWeb.org. CC BY 4.0, via Wikimedia Commons.

How big is it?

How long is it?

Odorous house ant about 3.2 mm long (0.13 in)A grain of rice about 6 mm (0.24 in)
small enough to sit on your fingernailcould run across a dinner table in 15 secondsmoves 21 times its own body length every second

How big is Odorous house ant compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

One colony can have many queens and live in several nests at once.

2

It looks after aphids, like a farmer with cows, and drinks the sweet honeydew they make.

3

It is very tough. Some queens have lived for over two months without food or water.

4

A colony can have from a few hundred to tens of thousands of ants.

5

It likes ordinary table sugar best of all the sugars.

you asked

Most asked questions about Odorous house ant

?Why does the odorous house ant smell?

When it is crushed, it gives off a smell like rotting coconut or blue cheese. That is how it got its names.

?How big is an odorous house ant?

It is tiny, about 1.5 to 3 millimetres long.

For bug experts

Scientific name
Tapinoma sessile
Named by
Say, 1836
Group
Ants
Family
Formicidae
Classification
Insecta > Hymenoptera > Formicidae
Lives on
North America
Also known as
Sugar ant, Stink ant, Coconut ant

Where the facts come from

  1. Tapinoma sessile (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 AntWeb.org. 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 [email protected] and we will fix it.

More from the same group: Ants

Also at home here: Houses and farms