Question about a Bee

Hi Everyone,

I had this Bee land on my arm today and thought I'd try to get some pics, it wasn't easy holding, focusing and taking the picture one handed but had ago anyway, when I got home and processed the picture I saw what looks like little ticks behind its neck, do insects get ticks, or are they something else, if so does anybody know what they are, I would love to find out, so any help would be much appreciated.

There is a sufficiency in the world for man's need but not for man's greed.