Date: 10/10/2020 16:50:57
From: Tau.Neutrino
ID: 1631159
Subject: Issus coleoptratus

Consider the toothed gears on the joints of Issus coleoptratus

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Date: 10/10/2020 16:55:15
From: roughbarked
ID: 1631161
Subject: re: Issus coleoptratus

Tau.Neutrino said:


Consider the toothed gears on the joints of Issus coleoptratus

Meshing legs?

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Date: 10/10/2020 16:56:25
From: Tau.Neutrino
ID: 1631162
Subject: re: Issus coleoptratus

roughbarked said:


Tau.Neutrino said:

Consider the toothed gears on the joints of Issus coleoptratus

Meshing legs?

Yes

https://www.smithsonianmag.com/science-nature/this-insect-has-the-only-mechanical-gears-ever-found-in-nature-6480908/

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Date: 10/10/2020 17:04:03
From: Rule 303
ID: 1631163
Subject: re: Issus coleoptratus

Interesting. Thank you.

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Date: 10/10/2020 17:04:26
From: buffy
ID: 1631164
Subject: re: Issus coleoptratus

Tau.Neutrino said:


Consider the toothed gears on the joints of Issus coleoptratus

Someone did, in 2013.

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Date: 10/10/2020 17:11:39
From: dv
ID: 1631166
Subject: re: Issus coleoptratus

Huh

Reply Quote
Date: 10/10/2020 17:38:34
From: Tau.Neutrino
ID: 1631175
Subject: re: Issus coleoptratus

buffy said:


Tau.Neutrino said:

Consider the toothed gears on the joints of Issus coleoptratus

Someone did, in 2013.

Yes, I’m happy they did, fascinating little creature.

Reply Quote
Date: 10/10/2020 17:39:08
From: SCIENCE
ID: 1631178
Subject: re: Issus coleoptratus

eh Tau.Neutrino is dv these days curious

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Date: 10/10/2020 18:32:08
From: mollwollfumble
ID: 1631190
Subject: re: Issus coleoptratus

Issus?

Oh, planthopper. These are the ones that tend to look like rose thorns in Sydney.

As opposed to leafhoppers, which tend to look like miniature cicadas in Melbourne.

Reply Quote
Date: 10/10/2020 18:32:51
From: Michael V
ID: 1631193
Subject: re: Issus coleoptratus

Tau.Neutrino said:


roughbarked said:

Tau.Neutrino said:

Consider the toothed gears on the joints of Issus coleoptratus

Meshing legs?

Yes

https://www.smithsonianmag.com/science-nature/this-insect-has-the-only-mechanical-gears-ever-found-in-nature-6480908/

Interesting, thanks.

Reply Quote
Date: 10/10/2020 19:00:47
From: btm
ID: 1631206
Subject: re: Issus coleoptratus

Tau.Neutrino said:


roughbarked said:

Tau.Neutrino said:

Consider the toothed gears on the joints of Issus coleoptratus

Meshing legs?

Yes

https://www.smithsonianmag.com/science-nature/this-insect-has-the-only-mechanical-gears-ever-found-in-nature-6480908/

While it’s true that that insect was the first to have the function of the meshing “gears” identified (they keep the legs synchronised, preventing the insect from spiralling out of control,) it had been known for decades that nymphs of all fulgoroids (order Hemiptera, suborder Auchenorrhyncha, infraorder Fulgoromorpha) have the same structure in their legs. See Malcolm Burrows and Gregory P Sutton (2013.09.13,) “Interacting gears synchronize propulsive leg movements in a jumping insect” Science, 341 (6151): 12541256 (the article is free, but you need to create an account at the science website to read it.) The structure is shed before moulting inito adulthood.

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Date: 11/10/2020 22:38:48
From: mollwollfumble
ID: 1631724
Subject: re: Issus coleoptratus

btm said:

While it’s true that that insect was the first to have the function of the meshing “gears” identified (they keep the legs synchronised, preventing the insect from spiralling out of control,) it had been known for decades that nymphs of all fulgoroids (order Hemiptera, suborder Auchenorrhyncha, infraorder Fulgoromorpha) have the same structure in their legs. See Malcolm Burrows and Gregory P Sutton (2013.09.13,) “Interacting gears synchronize propulsive leg movements in a jumping insect” Science, 341 (6151): 12541256 (the article is free, but you need to create an account at the science website to read it.) The structure is shed before moulting inito adulthood.

Interesting.

I hadn’t heard that. But I have heard that some insects have screws.

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