Harris's three-spot
Harrisimemna trisignata

Harris's three-spot is a moth from North America. It belongs to the owlet moths, a big family of moths that mostly fly at night. Its caterpillars munch the leaves of many bushes and trees, even apple trees.
Lives in
North America, from Canada down to Arizona, Texas and Georgia
Wingspan
3 to 3.6 cm (1.2 to 1.4 in)
Can it hurt you?
Harmless
Harmless. It cannot bite or sting.
What does it eat?
Its caterpillars eat the leaves of woody plants like willow, ash, honeysuckle, winterberry and apple.

How big is it?
How wide are its wings?
๐wings as wide as 6 grains of rice in a rowโฝcould fly across a whole football pitch in 29 seconds
How big is Harris's three-spot compared to YOU?
Just maths in your browser. Nothing is saved or sent anywhere.
How fast is it?
A person walking about 5 km/h (3.1 mph)
A kid running fast about 13 km/h (8.1 mph)
Harris's three-spot about 13 km/h (8.1 mph)
A grown-up on a bike about 25 km/h (16 mph)
cool stuff
Fun facts
1
In Canada the moths fly from May to August.
2
Its caterpillars are not picky. They can eat many kinds of bushes and trees, including apple trees.
3
It was first described by the English insect expert Francis Walker in 1856.
you asked
Most asked questions about Harris's three-spot
?What does Harris's three-spot eat?
Its caterpillars eat the leaves of bushes and trees like willow, ash and apple.
?How big is Harris's three-spot?
Its wings measure about 30 to 36 millimetres from tip to tip.
For bug experts
- Scientific name
- Harrisimemna trisignata
- Named by
- Walker, 1856
- Group
- Moths
- Family
- Noctuidae
- Classification
- Insecta > Lepidoptera > Noctuidae
- Lives on
- North America
Where the facts come from
- Harrisimemna trisignata (Wikipedia, CC BY-SA 4.0): what it looks like, where it lives, what it eats, sizes and fun facts, retold in simple words.
- Picture by Mothman27. CC BY-SA 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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