What does it mean when a swarm of dragonflies just show up at your house?

You may have a water source nearby or a hatch of mosquitoes, gnats, or mayflies near your home which the dragonflies come to hunt.

Tags: mayflyswarmwater supplyhatchgnats 
Monday, February 06 2012

Source: http://www.eduwebs.org/bugs/dragonfly.htm

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