small blue colorful protected dragonfly style sits on a blade of grass. latin name coenagrion mercuriale

animal biotope blade blue bluetail bog coenagrion coenagrionidae colorful creature dragonflies dragonfly environment europe fauna flora germany grass green greenery grafrac14 habitat helmazurjungfer herb humid insect latin leaf list male marsh meadow mercuriale moor moorland name nature protected rare red rest season sits small southern species stalk strictly style summer threatend wet wetland wild wildlife zygoptera