Aeshna juncea    




common name     Rush Darner

habitat
Lakes, ponds, fens, and sedge marshes (Paulson, 2009).

seasonality
June to September in British Columbia (Paulson, 2009).

identification
Blue and yellow stripes on lateral sides thorax are straight and broad (Figure 2). Similar in appearance to Subarctic Darners(A. subarctica) but differnt by having straight thoracic stripes (instead of slightly notched). Also somewhat similar to Variable Darners (A. interrupta) but different by having broader thoracic stripes. They are easily differentiated from other congeneric species by their thoracic stripe pattern (Paulson, 2009).

life history
Females oviposit on floating vegetation. Nymphs are aquatic predators among vegetation and are mainly found in acidic waters. Adults are terrestrial and hunt insects in flight (Cannings, 2002).

conservation
Common (Cannings, 2002).

diet info
Both adults and nymphs are predatory (Cannings, 2002).

range
Circumpolar in boreal regions around the world (Hutchings and Halstead, 2011).

notes
They are the most common species of mosaic darners (Aeshna) of the Yukon (Cannings, 2002).They can also be found at very high altitudes such as a lake situated in a mountain at 3,016 m above sea level (Schroeter, 2012).

people
species page authorChen, R.2013 

quick link
http://entomology.museums.ualberta.ca/searching_species_details.php?s=24208

 

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