Hairs on fly wing

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Radazz
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Location: Arnold, Missouri USA

Hairs on fly wing

#1 Post by Radazz » Fri Aug 17, 2018 4:33 pm

These are the hairs on the leading edge of the wing of a common housefly.
Looks like a narwhal horn, or cirri on a stylonchia.
Wild Heerbrugg M20
100x oil immersion

Image

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Radazz
Arnold, Missouri
Olympus IX70
Olympus BX40
Olympus SZ40

GaryB
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Joined: Tue Sep 05, 2017 10:33 am

Re: Hairs on fly wing

#2 Post by GaryB » Mon Aug 20, 2018 11:07 am

That's pretty neat, I didn't have any idea they were spiral! I wonder if it would show well in phase contrast.

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rnabholz
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Re: Hairs on fly wing

#3 Post by rnabholz » Mon Aug 20, 2018 3:21 pm

That spiral form is a surprise, and interesting. Thanks

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Radazz
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Re: Hairs on fly wing

#4 Post by Radazz » Wed Aug 22, 2018 1:07 pm

GaryB wrote:That's pretty neat, I didn't have any idea they were spiral! I wonder if it would show well in phase contrast.
I took the shot above a couple of years ago. I should drag out the Axioskop, it has a 100x infinity oil dipper, but it’s not phase contrast. I find phase contrast just looks like oblique light with thicker specimens.

Here is a hoverfly wing in phase. Interesting, but quite a loss of resolution.
Image
Radazz
Arnold, Missouri
Olympus IX70
Olympus BX40
Olympus SZ40

apochronaut
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Re: Hairs on fly wing

#5 Post by apochronaut » Wed Aug 22, 2018 1:17 pm

I'm sure there are people out there that have devoted their life to insect bristles/hairs but I've never seen much or heard much about that. Any hairs for that matter. For an amateur, with limited lab tools, their opacity presents difficulties. They are more in the province of a stereo microscope object, which in itself presents problems. Has anyone ever heard of them being sectioned? Study with a met microscope might be interesting.

GaryB
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Re: Hairs on fly wing

#6 Post by GaryB » Thu Aug 23, 2018 11:45 pm

Maybe multicolor Pol might show something if there's any birefringence in there.

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