Ultronia underwing
Catocala ultronia
The ultronia underwing is a moth from North America that hides a secret. Its front wings are plain, but its back wings are dark red. When it rests, the plain wings cover the colourful ones.
Lives in
Eastern North America and southern Canada, south to Florida and Texas
Wingspan
4.6 to 6 cm (1.8 to 2.4 in)
Can it hurt you?
Harmless
Harmless. It cannot bite or sting.
What does it eat?
Its caterpillars eat the leaves of trees like ash, apple, aspen, cherry and basswood.
How big is it?
How wide are its wings?
🧱wings as wide as 2 toy building bricks⚽could fly across a whole football pitch in 22 seconds
How big is Ultronia underwing compared to YOU?
Just maths in your browser. Nothing is saved or sent anywhere.
How fast is it?
A kid running fast about 13 km/h (8.1 mph)
Ultronia underwing about 17 km/h (11 mph)
A grown-up on a bike about 25 km/h (16 mph)
A car driving in town about 50 km/h (31 mph)
cool stuff
Fun facts
1
Its other name, dark red underwing, tells you the colour of its back wings.
2
The grown up moths fly only in August.
3
It has just one family of young each year.
you asked
Most asked questions about Ultronia underwing
?What does the ultronia underwing eat?
Its caterpillars eat leaves of ash, apple, aspen, cherry and basswood trees.
?When can you see the ultronia underwing?
The grown up moths fly in August.
For bug experts
- Scientific name
- Catocala ultronia
- Named by
- Hübner, 1823
- Group
- Moths
- Family
- Erebidae
- Classification
- Insecta > Lepidoptera > Erebidae
- Lives on
- North America
- Also known as
- Dark red underwing
Where the facts come from
- Catocala ultronia (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 Andy Reago & Chrissy McClarren. 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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