Being from Mississippi and having the "joy" of experiencing love bugs twice a year, I do have one piece of advice for those driving to WDW during these semi-annual rituals...wash your vehicle!!! These little plecia nearctica have an acidic body chemistry. When they are flying around searching for their soulmates and you seek to make them a modern-day Romeo and Juliet, the inescapable SPLAT will not only obscure your view but, if left unattended, will eat away your paint and chrome on your "cause of death" vehicle. Modern day vehicle paint and protective coating appications have reduced the threat of pits and chips. However, if sufficient sacrifices are made, they can stop the air flow on your radiator. A quick stop upon arrival to WDW and upon returning home at a self-serve car wash will do wonders.
These bugs-de-amour typically appear in late April/early May and late August/early September for about 4 weeks. Do not fear them; they will not bite...at least not humans. I cannot vouch for what they do to each other. With global warming causing an unusual amount of snow and days below freezing in the South this winter, not only have your orange juice prices increased, it will probably reduce the number of "honeymoon flies" this year. Not to worry though, a reduction means only millions instead of billions of the "kissybugs".
The rumor that the "double-headed bug" is the result of an experiment gone wrong in a lab at the University of Florida and are man made is patently false. UF is famous for Gatorade and good football teams but not this. It would be counter productive to create a nuisance that might chase away all the snow-bird vacationers and their tourism dollars.
Enjoy your stay in south Florida and if you are travelling through my home state of Mississippi, stop by for some catfish, hushpuppies and iced tea. We'll have plenty. Y'all come back now, ya heah?!