...
Were-bee? Werewasp? Werewasp has a better ring to it. Were Yellow Jacket? Where Yellow Jacket?! (ducks).
Right. *cough* Werebee. You're a template, per the Lycanthropy rules. You'll want two forms, both a converted form (a giant wasp, most likely) and a hybrid form (a really creepy looking werecreature thingy). Bees don't bite that I'm aware of, so infection would come from the stinger. You'll have to find a way to make the stinger viable in combat. Hybrid form will probably have Fly ... 30? 40? Average. They're good at straight lines and are kind of weavy, but don't the whole sharp turn thing real well.
If Giant Wasps have a venom, use that. For small form, Storyteller's pretty dead on. Werewasp? How the eff did these people get infected? Anyway. Werewasp. Lycanthrope template. There's a... Spider Eater I believe? That's large enough to ride and is also a flying vermin type. You may want to borrow some of its stats to get an idea of size/stat ratios.
LCpt. Thia Halmades