Tuesday, July 9, 2013

Stream Bluet

Stream Bluets are abundant damselflies. Pairs and single bluets often hover above creeks, like the small stream that drains Lyman Lakes in the Carleton College Arboretum. Pairs often copulate for and hour or two. Males often remain attached to females as they deposit their eggs, sometimes even ovipositing under water for up to 30 minutes (Paulson).I have previously posted photos of mating Stream Bluets.

This species is identified by its relatively broad, black thorax stripes, mostly black abdomen with thin blue rings, and all blue terminal abdominal segment but black-topped, blue eighth segment. The greenish color on the eyes also serves to identify Stream bluets (see bottom photo). The species is found in eastern North America, the eastern Great Plains, and south into eastern Mexico.

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