Gnats!
The Philadelphia police department and other agencies in the suburbs were kept busy with calls reporting swarms of gnats which, experts say, are actually flying ants.
The reports Monday are a result of the insects mating, a one-day, once-a-year occurrence.
The swarms were reported in Philadelphia and up the Lehigh Valley into Bethlehem, as well as Bucks and Montgomery counties and other areas. Similar clouds of insects were reported in Michigan and Connecticut.
