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Sticker of Yellow spotted sedge
Bug card No. 4880 of 4,939

Yellow spotted sedge

Philopotamus montanus
Eats: PlantsOther insectsPonds, rivers and shores6 legs

The yellow spotted sedge is a caddisfly, a moth-like insect that grows up in water. It is light brown or yellowish with lots of dark brown spots on its wings. Its babies live in fast, stony streams.

Lives in
All over Europe, east to northern Russia, near fast stony streams
Length
4 to 9 mm (0.16 to 0.35 in)
Wingspan
1.2 to 2 cm (0.47 to 0.79 in)
Top speed
about 9.9 km/h (6.2 mph)
Flying, estimate
Can it hurt you?
Harmless
Harmless. It does not bite or sting.
What does it eat?
Its babies spin nets in the water and catch tiny floating bits and very small algae. They filter their food like a sieve.
For real!Photo of Yellow spotted sedge
Picture by Hectonichus. CC BY-SA 4.0, via Wikimedia Commons.

How big is it?

How long is it?

Yellow spotted sedge about 9 mm long (0.35 in)A grain of rice about 6 mm (0.24 in)A toy building brick about 3.2 cm (1.3 in)

How wide are its wings?

Yellow spotted sedge wings about 2 cm tip to tip (0.79 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)
small enough to sit on your fingernailas long as 1.5 grains of rice in a rowwings as wide as 3 grains of rice in a rowcould fly across a whole football pitch in 38 secondsmoves 310 times its own body length every second

How big is Yellow spotted sedge compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

Its babies build long tube-shaped nets and fix them to rocks in the stream.

2

It loves fast-flowing water and lives in brooks with little rapids.

3

The grown-ups fly from February all the way to October.

4

It has one new generation every year.

you asked

Most asked questions about Yellow spotted sedge

?What is a yellow spotted sedge?

It is a caddisfly, an insect that looks a bit like a moth and grows up in streams.

?Where does the yellow spotted sedge live?

Across Europe, near small fast stony streams in hilly places.

?How big is the yellow spotted sedge?

Its body is 4 to 9 millimetres long and its wings span 12 to 20 millimetres.

For bug experts

Scientific name
Philopotamus montanus
Named by
Donovan, 1813
Group
Other insects
Family
Philopotamidae
Classification
Insecta > Trichoptera > Philopotamidae
Lives on
Europe

Where the facts come from

  1. Philopotamus montanus (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 Hectonichus. 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.

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More from the same group: Other insects

Also at home here: Ponds, rivers and shores

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