It's the jersey and the yummy smelling sunscreen I'm sure.
But yes, I do seem to be a magnet for them as well. Of course I'm allergic, so it's kind of scary.
A year or two ago I was riding some fresh pavement in the middle of raw desert (a brand new road to future development) when all of the sudden I noticed there were things flying at my head. I looked up to see a SWARM of bee's coming my way!! I have never peddled so fast in my life. I count myself as very lucky as I somehow didn't get stung.
We have the africanized ones out here, so you really have to be careful.

As far as critters flying into my helemt vents- well I usually have the tarantula hawks do that!