"four-spotted chaser" . . . "four-spotted chaser dragonflies" . . . . . . . "Four-spotted chaser dragonfly" . . . . . . . . . "''Libellula quadrimaculata''" . . . . "Four-spotted skimmer dragonfly" . . "Libellula quadrimaculata" . . . "Four-spotted Chaser" . . . "Four-spotted chaser" . . . . "Four-spotted chaser" . . . . . . . "Four-spot skimmer dragonfly" .