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Diptera.info :: Miscellaneous :: General queries
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hairy/bare eyes in Diptera
Nikita Vikhrev
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Posted on 22-10-2018 11:25
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Has anybody idea(s) what is advantage or disadvantage of hairy eyes?
Nikita Vikhrev - Zool Museum of Moscow University
 
Iain MacGowan
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Posted on 22-10-2018 12:06
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Hi Nikita
In Lonchaeidae hairy eyes are most commonly found in species which fly early in the spring or are montane or boreal so I guess the advantage is in providing some thermal protection
Iain
Iain MacGowan
 
John Carr
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Posted on 22-10-2018 14:24
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Iain MacGowan wrote:
Hi Nikita
In Lonchaeidae hairy eyes are most commonly found in species which fly early in the spring or are montane or boreal so I guess the advantage is in providing some thermal protection
Iain


In Chironomidae, Drosophilidae, and Tachinidae I have not noticed a correlation between temperature and eye hair.
 
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Nikita Vikhrev
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Posted on 22-10-2018 18:30
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Iain and John, thank you for your reactions.
1. I delaied with reply reading pdf: "Insects have hairy eyes that reduce particle deposition, Amador_et_al, 2015" Alas, not very informative paper.
2. Looking at Muscidae family, thermal protection may has sense: hairy eyes are typical for such a cold-resistan genera as Thricops, Drymea, Phaonia. But there are contrexamples as well^ in Hydrotaea irritans group eyes are hairy only in southern H. penicillata.
Nikita Vikhrev - Zool Museum of Moscow University
 
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