Broward County Transit (BCT) of Broward County, FL
Along with many other things in Fort Lauderdale, these buses had a makeover sometime in the late 1990's or early 2000's. So the beehive pattern on the buses are one of the new designs of Fort Lauderdale. The bus stops have also been redone. BCT is actually planning again to change the theme. Some buses are already completely white (except for maybe a couple of ads), ready for the new theme. They are the "albino" buses. The first two numbers on each bus represents the year of the bus. The 2008 NABIs are now in service.
Thanks to David Kingston for the info!