Just discovered this in my brown ale. It has been fermenting for ten days and is down to 1.017 (wyeast London esb). It looks like a bee but that's a total guess. I would imagine it got into the boil somehow but I can't rule out that it made it in during cooling (although the pot was covered most of the time) or even after. Should I be concerned? No off flavors at all in the sample I took
Here's a picture
http://postimg.org/image/qbebg2pt7/
Here's a picture
http://postimg.org/image/qbebg2pt7/