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An Amazing Close Up Of A Blue Dasher, A Species Of Skimmers(Libellulidae) (Pachydiplax Longipennis). Their Eyes Are Large And Prominent, Occupying A Significant Portion Of Their Head. This Is A Characteristic Feature Of Many Dragonflies, Providing Them With A Wide Field Of Vision. Like All Dragonflies, Blue Dashers Have Compound Eyes Made Up Of Thousands Of Tiny Units Called Ommatidia. This Structure Allows Them To Detect Movement And See In Nearly All Directions, Which Is Crucial For Hunting And Avoiding Predators.