Friday, July 5, 2013

Four-spotted Skimmer

I have seen Four-spotted Skimmers before, but this is the first from Erika’s garden. On Monday, several flew over the garden. They are fierce predators, even taking other dragonflies. In the garden they definitely behaved territorially, with individuals repeatedly landing on the same stretch of clothesline.

Some males of this species become “satellites” to territory holding males. The satellites are subordinate to the territory holder, but don’t breed unless the skimmers are abundant (Paulson). Field marks include the four spots on the wings and the dark “saddles” at the base of the hind wings.

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