Bug Wiki
Sticker of Twin-spotted sphinx
Bug card No. 4483 of 4,939

Twin-spotted sphinx

Smerinthus jamaicensis
Eats: Nothing as a grown-upMothsGardens and meadows6 legs

The twin-spotted sphinx is a hawkmoth with scalloped front wings and bright red back wings. On each red back wing there is a blue eyespot, which is sometimes split into two, like twins. Males are grey and females are yellowish brown.

Lives in
North America
Wingspan
4.5 to 8.3 cm (1.8 to 3.3 in)
Top speed
about 46 km/h (29 mph)
Flying, estimate
Can it hurt you?
Harmless
Harmless. It cannot bite or sting.
What does it eat?
The grown-up moths do not eat at all. The caterpillars eat leaves of willow, poplar, birch, ash, elm, apple and plum.
For real!Photo of Twin-spotted sphinx
Picture by Didier Descouens. CC BY-SA 4.0, via Wikimedia Commons.

How big is it?

How wide are its wings?

Twin-spotted sphinx wings about 8.3 cm tip to tip (3.3 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)
wings as wide as 2.5 toy building brickscould fly across a whole football pitch in 8.2 seconds

How big is Twin-spotted sphinx compared to YOU?

Just maths in your browser. Nothing is saved or sent anywhere.

How fast is it?

cool stuff

Fun facts

1

The grown-up moths have no need to eat. They live on what they ate as caterpillars.

2

It flies only at night.

3

Its blue eyespot can be one spot, or be split by black bands into two or three spots.

you asked

Most asked questions about Twin-spotted sphinx

?What does the twin-spotted sphinx eat?

The caterpillars eat leaves of willow, poplar, birch and fruit trees. The adult moths do not eat.

?How big is the twin-spotted sphinx?

Its wings measure about 4.5 to 8 centimetres from tip to tip.

For bug experts

Scientific name
Smerinthus jamaicensis
Named by
Drury, 1773
Group
Moths
Family
Sphingidae
Classification
Insecta > Lepidoptera > Sphingidae
Lives on
North America

Where the facts come from

  1. Smerinthus jamaicensis (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 Didier Descouens. 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.

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

More from the same group: Moths

Also at home here: Gardens and meadows

Honey jarfor grown-ups