LOVEBUGS LOADS OF EM (don't bite)
Mossies, gnats, horseflies in abundance and do bite so you will need mossie cream.
Occasional spider beware the little brown ones apparently.
Cockroaches depending on where you stay.
Various types of snake.
Alligators.
Best till last... Fire Ants millions of the little so and so's and when they bite it HURTS.
I have seen all of these on my visits in March, April, May, September, October and December.