Did I ever get this wrong
I put the apparatus back to how it should be, except that part A is the left side part, there is an identical part on the right.
Rather than being on the inside of the 'sheath' consisting of a left half (L) and a right half (R), the edge labelled A and the edge labelled B fit together in a tongue-and-groove setup.
So, rather than having a single edged saw these wasps have a double-edged saw (one edge pointing back (dorsal) and one edge pointing forward (ventral).
My interpretation is that the stiffer valves (R & L) are pushed into the twig. and then part A slides into the tiny hole formed by the tip of L; A and L then work back and forth to cut a slit in the twig.
NU11057
Sawfly Saws - how they work
Moderators: rjlittlefield, ChrisR, Chris S., Pau
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
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
Another image from a different species of sawfly showing tips of saws as they are found in situ.
20x SPlan Apo +2.5x relay lens, 41 frames @ 4µ ZS PMax
NU11058
20x SPlan Apo +2.5x relay lens, 41 frames @ 4µ ZS PMax
NU11058
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
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
I've no idea Mitch. I just make this stuff up as I go along. That's how I got it wrong the 1st time. I'll take a look at some of my text books later.
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
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
I found this from Google; but have to pay to get full article
Egg deposition behavior in the haplodiploid sawfly Athalia rosae ruficornis Jakovlev (Hymenoptera: Symphyta: Tenthredinidae)
JM Lee, Y Hashino, M Hatakeyama, K Oishi… - Journal of insect …, 1998 - Springer
... the two pairs of saws (ovipositor). The "inner" blade (arrowhead) is loosely connected to the
"outer" blade (arrow) at the rim, and the inner blade slides back and forth while the outer blade
is held still (also see text). Scale indicates 0.5 mm. Egg Deposition Behavior in a Sawfly ...
Cited by 13 - Related articles - Get at CISTI - All 8 versions
Egg deposition behavior in the haplodiploid sawfly Athalia rosae ruficornis Jakovlev (Hymenoptera: Symphyta: Tenthredinidae)
JM Lee, Y Hashino, M Hatakeyama, K Oishi… - Journal of insect …, 1998 - Springer
... the two pairs of saws (ovipositor). The "inner" blade (arrowhead) is loosely connected to the
"outer" blade (arrow) at the rim, and the inner blade slides back and forth while the outer blade
is held still (also see text). Scale indicates 0.5 mm. Egg Deposition Behavior in a Sawfly ...
Cited by 13 - Related articles - Get at CISTI - All 8 versions
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
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
I did search earlier today, and yesterday, and did find a number of dry text explanations that for all practicle purposes did nothing to enlighten me. Having never seen a sawfly before, text means nothing, but your images make it all instantly clear.
Theres nothing like a picture to clear up a mystery.
Theres nothing like a picture to clear up a mystery.
Did you mean to write "I never saw a saw fly as you saw a saw fly, but if a sawfly saw a saw fly, what would make a sawing saw fly? perhaps a house fly."ChrisR wrote:I never saw a saw fly as you saw you see but if I saw a saw fly, what would a fly saw fly bee seen sawing?
Seed?
Seed? No, wood.
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
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