Talking about flying insects, i also remember going to the backyard and seeing a big ass black wasp, dude, it was pretty big, apparently the wasp saw me and it started to fly around me, then i ran to the house stufftin' bricks thinking "NOPE NOPE". Google "Pepsis Wasp", i'm pretty sure it was one of those (im on 3DS so i cant post images). Btw, according to wikipedia, pepsis wasps hunts tarantulas, what the heck was doing a pepsis wasp in my backyard, i don't want to encounter a tarantula
TL;DR
i have encountered a pepsis wasp, 2 times