Elm sphinx

The elm sphinx is a big grey-brown hawk moth with wavy patterns on its wings and a tiny white dot on each front wing. Its caterpillar is the real star: it has four long horns on its front and one more horn on its tail.

How big is it?
How wide are its wings?
How big is Elm sphinx compared to YOU?
Just maths in your browser. Nothing is saved or sent anywhere.
How fast is it?
Fun facts
Its caterpillar can be green or a dark mix of brown, orange and pink.
When it is ready, the caterpillar crawls down the tree and digs into the soil to become a pupa.
It can spend the whole winter underground as a pupa.
Its tiny eggs are see-through and lime green.
Most asked questions about Elm sphinx
?Why is it called the four-horned sphinx?
Its caterpillar has four long horns on its front, plus a horn on its tail.
?What does the elm sphinx caterpillar eat?
Elm leaves, and also birch, basswood and cherry leaves.
For bug experts
- Scientific name
- Ceratomia amyntor
- Named by
- Geyer, 1835
- Group
- Moths
- Family
- Sphingidae
- Classification
- Insecta > Lepidoptera > Sphingidae
- Lives on
- North America
- Also known as
- Four-horned sphinx
Where the facts come from
- Ceratomia amyntor (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.
Bug Wiki honey jar For grown-ups: Bug Wiki is free, with no ads and no tracking. A small tip helps keep it online.Leave a tip