20 daughter colonies of the 4a were tested:
DE-2-294-88-2018 DE-2-294-134-2018 DE-13-90-583-2018 DE-18-43-451-2018 AT-99-364-1-2018 AT-99-364-2-2018 AT-99-364-97-2018 AT-99-364-105-2018 AT-99-364-142-2018 AT-99-364-208-2018 HR-30-1-34-2020 HR-30-1-46-2020 HR-30-1-135-2018 HR-30-1-170-2018 HR-30-1-197-2018 HR-30-1-389-2018 HR-30-1-856-2018 HR-30-1-925-2018 NL-55-46-369-2018 BE-1-584-9540-2020
9 tested queens were mated at the mating station:
HR-30-1-21-2023 HR-30-1-218-2023 HR-30-1-272-2023 HR-30-1-633-2023 HR-30-1-635-2023 HR-30-1-654-2023 HR-30-1-676-2023 HR-30-1-681-2023 HR-30-1-695-2023
No daughter colonies from colonies mated at the station were tested yet.