flickr.com/photos/pho-togA bee stinger lodged in human flesh.A happy thought to sustain you during the last few warm days of the year, before winter squeezes us all in its icy fist:When a tiny buzzing member of the insect order Hymenoptera decides to plunge its stinger into your tender flesh, quite often you don't really care which particular species got you. Most people refer to them as "bees" or "that little [expletive of your choice]."But now, thanks to Justin O. Schmidt, an entomologist a