30 daughter colonies of the 4a were tested:
DE-6-207-4-2020 DE-6-207-5-2020 DE-6-207-10-2020 DE-6-207-12-2020 DE-6-207-13-2020 DE-6-207-14-2020 DE-6-207-15-2020 DE-6-207-17-2020 DE-6-207-20-2020 DE-6-207-22-2020 DE-6-207-40-2020 DE-6-207-42-2020 DE-6-207-44-2020 DE-6-207-45-2020 DE-6-207-47-2020 DE-6-207-49-2020 DE-6-207-50-2020 DE-6-207-51-2020 DE-6-207-52-2020 DE-6-207-53-2020 DE-6-207-140-2020 NL-55-2-142-2020 NL-55-2-157-2020 NL-55-2-195-2020 NL-55-2-197-2020 NL-55-4-40-2020 NL-55-18-73-2020 NL-55-40-14-2020 NL-55-40-98-2020 NL-55-999-48-2020
24 tested queens were mated at the mating station:
NL-55-2-51-2021 NL-55-2-52-2021 NL-55-2-73-2021 NL-55-3-23-2021 NL-55-3-97-2021 NL-55-4-32-2021 NL-55-4-33-2021 NL-55-16-29-2021 NL-55-18-10-2021 NL-55-35-62-2021 NL-55-35-67-2021 NL-55-39-1-2021 NL-55-39-2-2021 NL-55-39-3-2021 NL-55-44-21-2021 NL-55-44-22-2021 NL-55-44-27-2021 NL-55-46-7-2021 NL-55-46-9-2021 NL-55-46-11-2021 NL-55-46-38-2021 NL-55-46-39-2021 NL-55-46-40-2021 NL-55-54-40-2021
12 daughter colonies of queens mated at the mating station were tested:
NL-55-39-1-2022 NL-55-39-2-2022 NL-55-39-3-2022 NL-55-46-3-2022 NL-55-46-4-2022 NL-55-46-8-2022 NL-55-999-25-2022 NL-55-999-32-2022 NL-55-999-33-2022 NL-55-999-34-2022 NL-55-999-37-2022 NL-55-999-38-2022