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Sticker of Indiscriminate cuckoo bumble bee
Bug card No. 2356 of 4,939

Indiscriminate cuckoo bumble bee

Bombus insularis

The indiscriminate cuckoo bumble bee is a sneaky bumblebee. Like a cuckoo bird, it lets other bumblebees raise its babies. It is fluffy, with a black head, pale yellow hairs on its chest and yellow on its sides.

Lives in
Canada, Alaska and the northern and western United States
Length
1.6 to 1.9 cm (0.63 to 0.75 in)
the female
Top speed
about 16 km/h (9.9 mph)
Flying, estimate
What does it eat?
It visits flowers, but it does not collect food for its young. The workers of another bumblebee nest feed its babies.
For real!Photo of Indiscriminate cuckoo bumble bee
Picture by USGS Bee Inventory and Monitoring Lab from Beltsville, Maryland, USA. Public domain, via Wikimedia Commons.

How big is it?

How long is it?

Indiscriminate cuckoo bumble bee about 1.9 cm long (0.75 in)A grain of rice about 6 mm (0.24 in)A toy building brick about 3.2 cm (1.3 in)A crayon about 9 cm (3.5 in)
as long as 3 grains of rice in a rowcould fly across a whole football pitch in 24 secondsmoves 230 times its own body length every second

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cool stuff

Fun facts

1

The female sneaks into another bumblebee's nest, gets rid of the queen there and takes over.

2

The workers of that nest then look after her babies as if they were their own.

3

The male is smaller than the female.

4

It lives on the tundra, in the northern forests and in western mountains.

you asked

Most asked questions about Indiscriminate cuckoo bumble bee

?Why is it called a cuckoo bumble bee?

Like the cuckoo bird, it lets other bumblebees raise its young.

For bug experts

Scientific name
Bombus insularis
Group
Bees and bumblebees
Family
Apidae
Classification
Insecta > Hymenoptera > Apidae
Lives on
North America

Where the facts come from

  1. Bombus insularis (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 USGS Bee Inventory and Monitoring Lab from Beltsville, Maryland, USA. Public domain, 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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