They are both insects, but aside from the superficial observation that both are insects that can sting us, they really couldn't be more unalike. Mosquitos sting with mouth parts, and although not all mosquitos consume blood, the ones we swat make a parasitic living from us (human beings) by extracting a small amount of our blood and digesting it. Bees sting with a stinger located on the back of their abdomen, and this stinger has no role in digestion or feeding.