Which bugs (arthropod etc.) is that?

Select size, shape, colour, leg, back, antennae, wing, striking or a combination to find the name of the European bug you have seen. For the English name, more photos and information click a photo from below.
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Sphex funerarius Chasmias lugens Coenagrion pulchellum Coenagrion armatum Ceriagrion tenellum
Sialis lutaria Pyrrhosoma nymphula Platycnemis pennipes Myrmeleon formicarius Ischnura elegans
Erythromma najas Calopteryx virgo Coenagrion puella Ephemera danica Calopteryx splendens