Field Notes
U.S. Fish & Wildlife Service
Field Notes Entry   
New Species of Dragonfly Found on Leslie Canyon NWR
Southwest Region, July 1, 2009
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Mayan Setwing.  Photo by Tony Galluci, 2005.  From Bugguide.net.
Mayan Setwing. Photo by Tony Galluci, 2005. From Bugguide.net. - Photo Credit: n/a

Refuge Volunteers and Odonata (dragonfly and damselfly) experts Sandy Upson and Doug Danforth documented a Mayan setwing dragonfly (Dythemis maya) and a black setwing dragonfly (Dythemis nigrescens) during July 2009 at Leslie Canyon National Wildlife Refuge.  This represents a first record in Cochise County, Arizona for the Mayan setwing, and only the second county record for the black setwing (the first record being from San Bernardino NWR in 2007).  Both dragonflies are primarily Mexican species which occasionally show up north of the border in the United States.  Dragonflies and damselflies are sensitive to water quality, and are excellent indicators of contaminants and other hydrological factors which are also important to the four species of federally-listed threatened and endangered fish species for which these two refuges were established.  The riparian wetland protected by Leslie Canyon NWR is already well known to Odonata enthusiasts for its diversity of dragonflies and damselflies, some of which are known from very few locations in the United States.

Contact Info: Christopher Lohrengel, 520-364-2104 x.106, chris_lohrengel@fws.gov
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