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Why do some species have cocoons?

Hello guys, yesterday i was wondering, why some species of ants, during their development have the coccon stage and others not, and, who produce the cocons material?I have seen that bigger species...

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Re: Why do some species have cocoons?

The larvae themselves produce the silk from glands near the mouth, and fashion the cocoon from it. They do this just before transforming into a pupa. Often, workers place small particles of sand, soil...

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Re: Why do some species have cocoons?

This is very interesting, but,does the pupae receive any food inside the cocoon? how?

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Re: Why do some species have cocoons?

The pupae stage generally is a time when great morphological changes are going on to transform the larval form to the adult form....as in butterflies or moths, ant pupae probably do not need any...

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Re: Why do some species have cocoons?

Pupae do not eat, and could not, even if food were offered to them. Their larval muscles are being dissolved and replaced by newly-forming adult muscles. They undergo the transformation using energy...

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Re: Why do some species have cocoons?

What happen to my Formica japonica?I have 5 colonies of them. All the larvae of one of them transformed into pupae without cocoons. And half of the the other of them into cocoons, but remains into...

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Re: Why do some species have cocoons?

For reasons unknown, Formica workers sometimes remove the cocoons from their pupae soon after they are spun. The tendency to do this varies by colony and with conditions. It seems to be more common in...

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Re: Why do some species have cocoons?

thanks Dr Ant:I remember I captured a colony of Formica japonica at age of about 15 years old in the mountain near home. I can remember that I gathered too many pupae without even one cocoons.^^ -chiri1

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Re: Why do some species have cocoons?

If you mean naked pupae, on of the main reasons for that is the underground. For example on glass, its hard for the larva to find the first points on the ground for their first silk. The silk doesnt...

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Re: Why do some species have cocoons?

In English, "underground" means either the ground beneath the soil surface, or a clandestine political movement. A plot against the cocoon! I agree, the inappropriate spinning *substrate* in a captive...

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Re: Why do some species have cocoons?

Oh thanks! My English isnt that good...Yes, I also would like to know this, here in Germany Serviformica fusca does this very often. In summer there are also often both naked pupae and cocoons inside...

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Re: Why do some species have cocoons?

Joachim, I studied German 30 years ago and can only understand it partially when I read it or hear it. Your English is much better than that! Once, I wrote into a German ant forum, and I couldn't...

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Re: Why do some species have cocoons?

Yes, I remember you posting into the forum of the "Ameisenschutzwarte" (ant-protection-organisation). But this was a thread that died already, it was quite old Most people there understand English...

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Re: Why do some species have cocoons?

Why is the most challenging question..I can only offer observations which confirm with Joachim. The formica in my mediumless nest (meaning no loose stuff, plaster only, before they started dying) had...

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Re: Why do some species have cocoons?

I thought this was interesting:Date: Mon, 12 Aug 2002 09:43:33 -0400 From: "Wheatcroft, Laurence" <laurence.wheatcroft@hp.com> Reply-To: antcolonies@yahoogroups.com ...Read More

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