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Sticker of Great black wasp
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Great black wasp

Sphex pensylvanicus

The great black wasp is a big, all-black wasp with smoky wings that shimmer blue in the sun. The mother digs a nest under the ground. She fills it with katydids for her babies to eat.

Lives in
Most of the United States, northern Mexico and southern Canada, in meadows and gardens
Length
2 to 3.5 cm (0.79 to 1.4 in)
Top speed
about 33 km/h (21 mph)
Flying, estimate
What does it eat?
The grown-ups visit flowers like milkweed for nectar. The larvae eat katydids and grasshoppers that their mother brings to the nest.
For real!Photo of Great black wasp
Picture by Rhododendrites. CC BY-SA 4.0, via Wikimedia Commons.

How big is it?

How long is it?

Great black wasp about 3.5 cm long (1.4 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)
as long as 6 grains of rice in a rowcould fly across a whole football pitch in 11 secondsmoves 260 times its own body length every second

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How fast is it?

cool stuff

Fun facts

1

Each baby wasp has its own little room in the nest and eats 2 to 6 katydids.

2

Sneaky birds like house sparrows sometimes steal the katydids the mother has caught.

3

It helps flowers like milkweed by carrying their pollen.

4

The first article about an insect ever written by someone born in America, in 1749, was about this wasp.

you asked

Most asked questions about Great black wasp

?How big is the great black wasp?

About 2 to 3.5 centimetres long. The females are bigger than the males.

?What does the great black wasp eat?

The adults drink nectar from flowers. The babies eat katydids and grasshoppers.

For bug experts

Scientific name
Sphex pensylvanicus
Named by
Linnaeus, 1763
Group
Wasps and hornets
Family
Sphecidae
Classification
Insecta > Hymenoptera > Sphecidae
Lives on
North America
Also known as
Great black digger wasp

Where the facts come from

  1. Sphex pensylvanicus (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 Rhododendrites. CC BY-SA 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 hello@bugwiki.app and we will fix it.

More from the same group: Wasps and hornets

Also at home here: Gardens and meadows