Who's your daddy?

There was only one thing to do with my suicidal bees - throw them out!
So I did.
Well to be truthful I threw them out of their hive on to the ground in front of another hive. Initially they started walking off in all directions and some got airborne, but after a few minutes half a dozen had found their way into the new hive. I watched with interest to see if the guard bees would attack the intruders, but there was no challenge. Instead the new arrivals sat in the entrance, stuck their tails in the air and started beating their wings, sending a scent from their glands back to the others. Sure enough within a couple of minutes all the other bees had turned around and were walking into 'their' new home. So now I have a colony containing both the suicidal and the non-suicidal bees, and the funny thing is that even though they are all mixed up, I can tell which is which, .... and it's nothing to do with happy faces.
Bees don't all look the same. My suicidal bees have almost black bodies with barely visible black stripes, whereas my happy bees have yellowy-brown bodies. The suicidal bees will die out over the next few weeks but in the meantime they can help with foraging and housekeeping duties. Gradually the colony will revert to just yellow bees again. Or may be not, it depends on who's the daddy.
When a virgin queen goes on her mating flight she is impregnated by several drones and receives millions of sperm cells which are stored in packets inside her body. Those sperm have to last for the rest of the queen's reproductive life, some 3 -4 years, and as the months go by some packets of sperm are used up and new packets are started.
New packets of sperm mean a new daddy, so it is not unusual to see the look and characteristics of a colony change over the months; same mummy - different daddy.
Right now my happy bees are yellow, which suggests daddy may be of Mediterranean extraction, and my suicidal bees are black, suggesting daddy may be of Scottish descent...
'Nuf said.