Saturday, May 26, 2012
University of Minnesota Landscape Arboretum. We found one new for us, a Chalk-fronted Corporal. (Presumably the name "corporal" comes from the stripes on the thorax.) This species, found across southern Canada, dropping down through California and also the northeastern United States, can be very common. They breed in bogs and woodland ponds--you may note by the leaves in this photo that our corporal was in a forested area. They tend to lay in wait for mosquitos and blackflies. Chalk-fronts tend to be aggressive species. Males will guard their females after copulation. After depositing her eggs in standing water, the females often fly into nearby woods (Dragonflies of the North Woods; Dragonflies and Damselflies of the East).
Posted by Dan Tallman at 8:33 AM