The oldest fossil of the impression of a flying insect has been found

It's a mayfly. 

Mayfly fossil inclusion in Baltic amber

Yours for only $2,200.

Via: Fly Fishing Forums.

The Giant Mayfly

Via: Saltwater Rusty Memories

Paleozoic Damsel Hatch

Welcome to Jarrasic Park!

During the late Paleozoic era the Earth was, if not exactly ruled or terrorised, at the least very seriously bothered by swarms of gigantic dragonflies with wingspans around 70cm across. The monster insects will have been all the more troublesome as dragonflies "need to hunt live prey", according to experts.

Dr John VandenBrooks, after a lengthy struggle, managed to breed enlarged dragonflies in his Arizona laboratory. The large size was achieved by enhancing atmospheric oxygen levels to 31 per cent, as seen in the Paleozoic (today's air is only about 20 per cent O₂).

The hard bit, according to the prof, was not the creation of this artificially enriched (or "hyperoxic") atmosphere but the actual care and feeding of the monstrous, prehistoric winged flesh-eaters.

LINK (Via: The Register)

Vandenbrooks dragonflies are only 15% larger than our modern day variety but we all know how that Jurrasic Park thing turned out.

It's A Small World

Magnified 30 times, this is image of a Hydropsyche angustipennis (caddisfly) larva head is one of The Nikon International Small World Photomicrography Competition winners being featured on the Big Picture.

LINK

Mayfly Justice

Via: (Way Upstream)