So, if the bee dies within the hive they are removed by undertaker bees, generally so they don’t spread disease. I can imagine that a dead bee probably smells quite different to a live bee so they would detect them this way.
However, when a bee stings a human, they die because their barb gets stuck in us, they do release an alarm pheromone which other bees can smell and that’s why other bees can come along to sting too. But its more than that… the alarm pheromone actually doesn’t recruit bees to come sting per say, its more than the alarm pheromone makes them search for a threat and its actually the moving around / motion that probably recruits more bees to sting than anything else. So, if I was stung, I’d remove it and then move away from wherever the bees are and probably not run or move lots.
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