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Must have been a female. All females no matter what species love the cameraI wonder why it didn’t fly away?
One in my garden today - on a bird feeder! (R7 RF 100-500mm). What a monster!First migrant hawkers (aeshna mixta) appear. It seems autumn is coming... (German name: Herbst-Mosaikjungfer = autumn hawker)
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Because of size?What a monster!
I measured this Migrant Hawker to be 66mm long, nearly twice the length of an average Ruddy Darter, and 12mm shorter than an average Emperor of 78mm. I couldn’t get much closer and have him all in frame as he is 4000px long.Because of size?
Then I understand when you said you never came close to a dragonfly for macro distance
Emperors and other hawkers are about 2 cm longer.
I‘d call migrant h. medium sized.
Darters would be „small“ dragons.
So you've found a record individual, as 64 mm are the max size I could find for those.I measured this Migrant Hawker to be 66mm long, nearly twice the length of an average Ruddy Darter, and 12mm shorter than an average Emperor of 78mm. I couldn’t get much closer and have him all in frame as he is 4000px long.
The Royal Society (the UK National Academy of Sciences, founded in 1660, the world's oldest scientific society) has as its motto: " 'Nullius in verba', which is taken to mean 'take nobody's word for it'. It is an expression of the determination of Fellows to withstand the domination of authority and to verify all statements by an appeal to facts determined by experiment." So, here is a photographic record of the measurement of the grid under the dragonfly using a micrometer to measure the spacing, wich is then used to measure the insect. The spacing of a tad over 57mm corresponds to 3430 px. The Migrant Hawker spans 3962 pixels. That gives 65.8mm for the Dragonfly, rounded to to 66mm. So why did you find only 64mm? Well, that is what we find by googling, and dozens of websites quote 63mm or 64mm, none of them giving any reference. The odds are they all copy each other and none of them actually have the evidence. I also suspect it's because they are mainly British, and the Migrant Hawker was said to be a pre-metrification 2.5 inches, a nice easy number, which is 63.5mm. Nullius in verba.So you've found a record individual, as 64 mm are the max size I could find for those.
Emperors can get up to 84 mm according to the same source (libellen.tv)![]()
That's really good science.The Royal Society (the UK National Academy of Sciences, founded in 1660, the world's oldest scientific society) has as its motto: " 'Nullius in verba', which is taken to mean 'take nobody's word for it'. It is an expression of the determination of Fellows to withstand the domination of authority and to verify all statements by an appeal to facts determined by experiment." So, here is a photographic record of the measurement of the grid under the dragonfly using a micrometer to measure the spacing, wich is then used to measure the insect. The spacing of a tad over 57mm corresponds to 3430 px. The Migrant Hawker spans 3962 pixels. That gives 65.8mm for the Dragonfly, rounded to to 66mm. So why did you find only 64mm? Well, that is what we find by googling, and dozens of websites quote 63mm or 64mm, none of them giving any reference. The odds are they all copy each other and none of them actually have the evidence. I also suspect it's because they are mainly British, and the Migrant Hawker was said to be a pre-metrification 2.5 inches, a nice easy number, which is 63.5mm. Nullius in verba.