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Diptera.info :: Identification queries :: Diptera (eggs, larvae, pupae)
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Dipteran larva? - on curculionid beetle
Nikolai Morozov
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Posted on 05-03-2020 20:39
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Location: Russia, Moscow region
Posts: 52
Joined: 12.06.09

Hello!

This is Hypera miles weevil sitting on Vicia sp. leaf. As you can see, the beetle has something (marked with white arrow and further magnified) on his pronotum. At first sight, it appears to be a syrphid larva as it is green and translucent. Relying on the weevil species' average body length being equal to 6-7 mm it turns out that the larva's length is 0.5-1 mm. I just don't know if a syrphid larvas may have such a size and parasitize on curculionids. So what could it be?

The photos were taken in Moscow region on 23 May 2015.
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Edited by Nikolai Morozov on 05-03-2020 20:45
 
Nikolai Morozov
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Posted on 05-03-2020 20:47
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Location: Russia, Moscow region
Posts: 52
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next
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Nikolai Morozov
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Posted on 05-03-2020 20:48
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Location: Russia, Moscow region
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Nikolai Morozov
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Posted on 05-03-2020 20:50
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Location: Russia, Moscow region
Posts: 52
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Larva
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Tony Irwin
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Posted on 06-03-2020 23:21
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I doubt that it is a parasite - much more likely to be an accidental passenger!Smile
Tony
----------
Tony Irwin
 
Nikolai Morozov
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Posted on 09-03-2020 18:29
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Location: Russia, Moscow region
Posts: 52
Joined: 12.06.09

Thank you, Tony! I hoped it could be parasitic/phoretic insect larva or nematode and even found some evidence of associations between beetles and flies/nematodes (https://www.mdpi..../4/184/htm figures 18,30,31), although nematodes are whitish usually. So I think there is theoretical possibility of this type of interaction, though. Maybe, poorly known interactionSmile
 
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