What are these bugs ?

Here in NJ in the afternoon or early evening, I can go in the backyard and see these small bugs, small like mosquitos or gnats, that fly around each other in a (2-foot diameter?) grouping that hovers about 4-5 feet above the ground. What are these ? Should they be left alone or otherwise ? Thanks.
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:) Here in NJ in the afternoon or early evening, I can go in the backyard :) and see these small bugs, small like mosquitos or gnats, that fly :) around each other in a (2-foot diameter?) grouping that hovers about :) 4-5 feet above the ground. What are these ? Should they be left :) alone or otherwise ? Thanks.
Could be a number of the different "cousins" of the fungus gnats or midges just swarming about to breed. Doubt there is a concern unless where you see them has a moisture issue to correct.
Lar. (to e-mail, get rid of the BUGS!!
Dancing dog is back! http://media.ebaumsworld.com/smartdog.wmv
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http://www.colostate.edu/Depts/CoopExt/4DMG/Pests/midges.htm sed5555
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