In my opinion, the most photogenic are the Globular Springtails which are 1-3mm in size and can easily be overlooked with the naked eye. Like all springtails, they contain an anti-freeze agent in their blood which enables them to remain active in even the coldest conditions. When magnified they can be seen to be very colourful, highly patterned and, dare I say it, actually quite cute :) I think the following are all the species Dicyrtomina ornata.
All of the following images were taken using my MPE-65mm macro lens, typically at between 3x and 5x magnification.
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This one was photographed recently on the underside of a red house brick.
On a frosty day this springtail was found on the frozen underside of a rock and soon started wandering about when it was exposed to the daylight.
This one was under a piece of sandstone.
This springtail is grooming itself with a globule of liquid that it secreted.
I'm not quite sure what this one was doing, but I've seen several do this. It stopped and waved its front legs, possibly some sort of defence mechanism?
All in all, they're fascinating little creatures!