Bug Wiki
Sticker of Common pine sawfly
Bug card No. 0333 of 1,500

Common pine sawfly

Diprion pini

The common pine sawfly is a small cousin of wasps and bees that lives in pine forests. The boy is dark brown with feathery, comb-like feelers. The girl is yellow and black, and her egg-laying tube is shaped like a tiny saw.

Lives in
Europe and Russia, in pine forests
Length
0.7 to 1 cm (0.28 to 0.39 in)
Top speed
about 17 km/h (11 mph)
Flying, estimate
What does it eat?
The grown-ups do not eat at all and live only a few days. The yellow-green caterpillars munch pine needles in big hungry groups.
For real!Photo of Common pine sawfly
Picture by John Curtis (died 1862). Public domain, via Wikimedia Commons.

How big is it?

How long is it?

Common pine sawfly about 1 cm long (0.39 in)A grain of rice about 6 mm (0.24 in)A toy building brick about 3.2 cm (1.3 in)
small enough to sit on your fingernailas long as 1.5 grains of rice in a rowcould fly across a whole football pitch in 22 secondsmoves 470 times its own body length every second

How big is Common pine sawfly compared to YOU?

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

How fast is it?

cool stuff

Fun facts

1

The mum uses her saw to cut little grooves in pine needles and lays her eggs inside them.

2

One mum can lay about 100 to 150 eggs.

3

The young caterpillars live together in groups of 60 to 100.

4

The caterpillar can grow to 25 millimetres, much longer than the grown-up sawfly.

5

Its pupa can wait in its cocoon for more than a year before the sawfly comes out.

you asked

Most asked questions about Common pine sawfly

?What do pine sawfly caterpillars eat?

They eat pine needles, mostly from Scots pine, and they eat in big groups.

?Why is it called a sawfly?

Because the female has a saw-shaped tube for cutting slots in needles to lay her eggs.

For bug experts

Scientific name
Diprion pini
Named by
Linnaeus, 1758
Group
Wasps and hornets
Family
Diprionidae
Classification
Insecta > Hymenoptera > Diprionidae
Lives on
Europe, Asia

Where the facts come from

  1. Common pine sawfly (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 John Curtis (died 1862). Public domain, 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 [email protected] and we will fix it.

More from the same group: Wasps and hornets

Also at home here: Forests and woods