>In late summer or early fall workers are often seen with a yellow marking
>on their thorax that looks as though someone had marked them.
>   What is that marking showing up on workers at the end of the
>season?
>Dick Allen


My bees get a white stripe on the dorsal side of their thorax. I
affectionally call them "stripers." I've always thought they got it from
working chicory. The way the bee gets nectar from the chicory causes the
pollen to be deposited on the thorax. I could be wrong of course.

Mike