20mm with antenna
Female, ~27mm body length
ID based on BugGuide expert comment: http://bugguide.net/node/view/538583/bgimage
"The fore- and hind wing pterostigmata are different colors, a sure sign it's floridanus or bicolor (the latter only occurs in Arizona in the U.S.)" See 4th photo for close up of this feature.
Location: Europe > Portugal > Algarve
Date Photo Taken: July 15, 2016
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Looks and acts like a small dragonfly.
Owlflies are dragonfly-like insects with large bulging eyes and strongly knobbed antennae. They are neuropterans in the family Ascalaphidae; they are only distantly related to the true flies, and even more distant from the dragonflies and damselflies. They are diurnal or crepuscular predators of other flying insects, and are typically 5 cm (2.0 in) long.