Common Darter Dragonfly (Sympetrum striolatum) resting on bullrush, Oxfordshire, UK

sympetrum terrestrial bullrush animals male anisoptera lakes insects odonates darters ectotherms dragonfly bugs arthropoda lake ectothermic aquatic water red dragonfly arthropods dragonflies pond nature vertical zoology water verticals ectotherm dragonflies europe fauna invertebrate wildlife cold darter entomology odonate insect resting pond uk blooded wetland libellulidae striolatum insecta wetlands arthropod odonata oxfordshire insect invertebrates ponds bug animal