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Sticker of Witch-hazel cone gall aphid
Bug card No. 4819 of 4,939

Witch-hazel cone gall aphid

Hormaphis hamamelidis
Eats: PlantsTrue bugs and cicadasForests and woods6 legs

The witch-hazel cone gall aphid is a tiny insect that lives on witch-hazel bushes. In spring a mother aphid makes the leaf grow a little pointed cone around her, called a gall. The gall is green at first and then turns bright red. Inside it she has food and a safe home.

Lives in
The eastern United States, on witch-hazel bushes
Top speed
about 0.01 km/h (0.01 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless. It is far too small to hurt anyone.
What does it eat?
It drinks the sap of witch-hazel leaves from inside its gall.
For real!Photo of Witch-hazel cone gall aphid
Picture by John Cooper. CC BY-SA 3.0, via Wikimedia Commons.

How fast is it?

cool stuff

Fun facts

1

The mother makes the gall grow by poking the leaf again and again and putting a special liquid into it.

2

One mother can fill her gall with about 50 baby aphids, all girls, without needing a father.

3

The second generation grows wings and flies off to start new families.

4

At the end of summer the aphids lay eggs on the bark, and these hatch the next spring.

you asked

Most asked questions about Witch-hazel cone gall aphid

?What are the red cones on witch-hazel leaves?

They are galls made by this tiny aphid. Each one is a home and a food store for a mother aphid and her babies.

?How many babies does a witch-hazel gall aphid have?

One stem mother can fill her gall with about 50 daughters.

For bug experts

Scientific name
Hormaphis hamamelidis
Group
True bugs and cicadas
Family
Aphididae
Classification
Insecta > Hemiptera > Aphididae
Lives on
North America

Where the facts come from

  1. Witch-hazel cone gall aphid (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 Cooper. CC BY-SA 3.0, 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: True bugs and cicadas

Also at home here: Forests and woods

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