Sawfly Saws - how they work

Images made through a microscope. All subject types.

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NikonUser
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Sawfly Saws - how they work

Post by NikonUser »

EDIT was "Another "What am I?""

Part of a part that is part of an insect.
40x Splan Apo + 2.5x relay lens

Image
NU11050
Last edited by NikonUser on Tue Apr 19, 2011 1:30 pm, edited 3 times in total.
NU.
student of entomology
Quote – Holmes on ‘Entomology’
” I suppose you are an entomologist ? “
” Not quite so ambitious as that, sir. I should like to put my eyes on the individual entitled to that name.
No man can be truly called an entomologist,
sir; the subject is too vast for any single human intelligence to grasp.”
Oliver Wendell Holmes, Sr
The Poet at the Breakfast Table.

Nikon camera, lenses and objectives
Olympus microscope and objectives

lauriek
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Post by lauriek »

A wasps tongue? (or whatever the proper entomological name for that thing they stick out like a tongue is!)

Mitch640
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Post by Mitch640 »

The trailing edge of a wing?

Cactusdave
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Post by Cactusdave »

Looks more like stretched out skin of something.
Leitz Ortholux 1, Zeiss standard, Nikon Diaphot inverted, Canon photographic gear

NikonUser
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Joined: Thu Sep 04, 2008 2:03 am
Location: southern New Brunswick, Canada

Post by NikonUser »

No, not a tongue, not a wing, not stretched.

With 20x objective:
Image
NU11051
NU.
student of entomology
Quote – Holmes on ‘Entomology’
” I suppose you are an entomologist ? “
” Not quite so ambitious as that, sir. I should like to put my eyes on the individual entitled to that name.
No man can be truly called an entomologist,
sir; the subject is too vast for any single human intelligence to grasp.”
Oliver Wendell Holmes, Sr
The Poet at the Breakfast Table.

Nikon camera, lenses and objectives
Olympus microscope and objectives

lauriek
Posts: 2402
Joined: Sun Nov 25, 2007 6:57 am
Location: South East UK
Contact:

Post by lauriek »

A bee stinger?

NikonUser
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Joined: Thu Sep 04, 2008 2:03 am
Location: southern New Brunswick, Canada

Post by NikonUser »

No, not a bee stinger.
Another image tomorrow.
NU.
student of entomology
Quote – Holmes on ‘Entomology’
” I suppose you are an entomologist ? “
” Not quite so ambitious as that, sir. I should like to put my eyes on the individual entitled to that name.
No man can be truly called an entomologist,
sir; the subject is too vast for any single human intelligence to grasp.”
Oliver Wendell Holmes, Sr
The Poet at the Breakfast Table.

Nikon camera, lenses and objectives
Olympus microscope and objectives

NikonUser
Posts: 2676
Joined: Thu Sep 04, 2008 2:03 am
Location: southern New Brunswick, Canada

Post by NikonUser »

10x and 4x
length A-B = 2.0 mm
Correct orientation, top is dorsal, A is posterior.

Give-away clue: insect is named for this 'apparatus'

Image
Image
NU11052 NU11053
NU.
student of entomology
Quote – Holmes on ‘Entomology’
” I suppose you are an entomologist ? “
” Not quite so ambitious as that, sir. I should like to put my eyes on the individual entitled to that name.
No man can be truly called an entomologist,
sir; the subject is too vast for any single human intelligence to grasp.”
Oliver Wendell Holmes, Sr
The Poet at the Breakfast Table.

Nikon camera, lenses and objectives
Olympus microscope and objectives

Planapo
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Location: Germany, in the United States of Europe

Post by Planapo »

A sawfly's "saw" i. e. ovipositor?

Makes a beautiful 'graphic' image by the way!

--Betty

NikonUser
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Joined: Thu Sep 04, 2008 2:03 am
Location: southern New Brunswick, Canada

Post by NikonUser »

Thanks Betty; correct ID of course.

There is a pair of these saws within the sheath seen below; C-D is only 1.6 mm and the saws extend further back into the body.

Unfortunately I did not pay sufficient attention when I dissected out the 'apparatus'. I may have dorsal and ventral reversed.
:roll:
Image
NU.
student of entomology
Quote – Holmes on ‘Entomology’
” I suppose you are an entomologist ? “
” Not quite so ambitious as that, sir. I should like to put my eyes on the individual entitled to that name.
No man can be truly called an entomologist,
sir; the subject is too vast for any single human intelligence to grasp.”
Oliver Wendell Holmes, Sr
The Poet at the Breakfast Table.

Nikon camera, lenses and objectives
Olympus microscope and objectives

Mitch640
Posts: 2137
Joined: Sun Aug 15, 2010 1:43 pm

Post by Mitch640 »

Never would have guessed, cause I have never heard of a sawfly.

I would be curious though, to test a real steel blade with this exact shape ground into it, to see how efficient it is as a knife. It's already got a hollow ground edge on it. :)

NikonUser
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Joined: Thu Sep 04, 2008 2:03 am
Location: southern New Brunswick, Canada

Post by NikonUser »

Engineers can learn a lot from nature; which I'm sure they realize.
The darker the brown = thicker and stronger tanned cuticle.
Back of the blade is the most rigid, bands of thick cuticle run down from the back to end in the cutting edge which also seems to be supported by long triangular points.
The clear cuticle between the saw-edged teeth would be thin and flexible.

I think it's the top 4 images that do the sawing.
NU.
student of entomology
Quote – Holmes on ‘Entomology’
” I suppose you are an entomologist ? “
” Not quite so ambitious as that, sir. I should like to put my eyes on the individual entitled to that name.
No man can be truly called an entomologist,
sir; the subject is too vast for any single human intelligence to grasp.”
Oliver Wendell Holmes, Sr
The Poet at the Breakfast Table.

Nikon camera, lenses and objectives
Olympus microscope and objectives

lauriek
Posts: 2402
Joined: Sun Nov 25, 2007 6:57 am
Location: South East UK
Contact:

Post by lauriek »

Lovely wider shots NU. (And I wasn't _too_ far off with the bee stinger, right order and area of body anyway!) :)

It looks to me as though someone designed the electric carving knife based on these...

Mitch640
Posts: 2137
Joined: Sun Aug 15, 2010 1:43 pm

Post by Mitch640 »

That's where I've seen this. An electric fish filet knife I once had. :)

NikonUser
Posts: 2676
Joined: Thu Sep 04, 2008 2:03 am
Location: southern New Brunswick, Canada

Post by NikonUser »

lauriek wrote:Lovely wider shots NU. (And I wasn't _too_ far off with the bee stinger, right order and area of body anyway!) :)
Thanks Laurie.
I purposely made no comment, it would have been too much of a clue.
NU.
student of entomology
Quote – Holmes on ‘Entomology’
” I suppose you are an entomologist ? “
” Not quite so ambitious as that, sir. I should like to put my eyes on the individual entitled to that name.
No man can be truly called an entomologist,
sir; the subject is too vast for any single human intelligence to grasp.”
Oliver Wendell Holmes, Sr
The Poet at the Breakfast Table.

Nikon camera, lenses and objectives
Olympus microscope and objectives

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