Dick wrote

> If memory serves me correctly, I've read (but can't remember where) that 
> cerana and mellifera
> bees have been shown to mate, although no offspring was produced.

Yes there is a paper out from Japan, which I cannot put my hands on at the 
moment, which showed that Apis mellifera carnica queens mated with Apis 
cerana drones and there was no viable brood produced.

Trevor Weatherhead
AUSTRALIA 

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