They're meant to be outlined like this:
But when I crop they end up looking like this (and they do repeat perfectly so at least that's fine):
|So they look more like fireflies than bees (which is cute but I want to know why it's happening!)|
edit: OK! I managed to get around the problem (sort of) my transporting the image from Illustrator to Photoshop (de-vectoring it in the process I guess) and making it a Photoshop pattern. Voila!