61 daughter colonies of the 4a were tested:
DE-6-198-58-2017 DE-6-198-59-2017 DE-6-198-60-2017 DE-6-198-60-2018 DE-6-198-61-2017 DE-6-198-61-2018 DE-6-198-62-2017 DE-6-198-62-2018 DE-6-198-63-2017 DE-6-198-63-2018 DE-6-198-64-2017 DE-6-198-64-2018 DE-6-198-65-2017 DE-6-198-65-2018 DE-6-198-66-2017 DE-6-198-66-2018 DE-6-198-67-2017 DE-6-198-67-2018 DE-6-198-68-2017 DE-6-198-68-2018 DE-6-198-69-2017 DE-6-198-69-2018 DE-6-198-70-2017 DE-6-198-70-2018 DE-6-198-71-2017 DE-6-198-71-2018 DE-6-198-72-2017 DE-6-198-72-2018 DE-6-198-73-2017 DE-6-198-73-2018 DE-6-198-74-2017 DE-6-198-74-2018 DE-6-198-75-2017 DE-6-198-75-2018 DE-6-198-76-2017 DE-6-198-76-2018 DE-6-198-77-2017 DE-6-198-78-2017 DE-6-198-79-2017 DE-6-198-80-2017 DE-6-198-81-2017 DE-6-198-82-2017 DE-6-198-101-2017 DE-6-198-102-2017 DE-6-198-103-2017 DE-6-198-104-2017 DE-6-198-105-2017 DE-6-198-106-2017 DE-6-198-107-2017 DE-6-198-108-2017 AT-99-671-701-2017 NL-55-2-35-2017 NL-55-2-37-2017 NL-55-2-45-2017 NL-55-2-54-2017 NL-55-2-82-2017 NL-55-3-47-2017 NL-55-3-54-2017 NL-55-4-29-2017 NL-55-4-30-2017 NL-55-16-42-2017
53 tested queens were mated at the mating station:
NL-55-3-5-2018 NL-55-3-8-2018 NL-55-3-15-2018 NL-55-3-41-2018 NL-55-3-75-2018 NL-55-4-38-2018 NL-55-4-39-2018 NL-55-4-40-2018 NL-55-12-7-2018 NL-55-16-43-2018 NL-55-16-45-2018 NL-55-16-47-2018 NL-55-16-62-2018 NL-55-16-68-2018 NL-55-16-70-2018 NL-55-16-71-2018 NL-55-16-75-2018 NL-55-18-42-2018 NL-55-18-44-2018 NL-55-18-61-2018 NL-55-18-62-2018 NL-55-35-16-2018 NL-55-35-18-2018 NL-55-35-20-2018 NL-55-35-22-2018 NL-55-35-23-2018 NL-55-35-25-2018 NL-55-35-28-2018 NL-55-35-29-2018 NL-55-35-31-2018 NL-55-35-33-2018 NL-55-39-1-2018 NL-55-39-2-2018 NL-55-43-4-2018 NL-55-43-80-2018 NL-55-43-84-2018 NL-55-44-2-2018 NL-55-44-5-2018 NL-55-44-10-2018 NL-55-44-24-2018 NL-55-999-21-2018 NL-55-999-25-2018 NL-55-999-31-2018 NL-55-999-32-2018 NL-55-999-33-2018 NL-55-999-34-2018 NL-55-999-35-2018 NL-55-999-41-2018 NL-55-999-43-2018 NL-55-999-46-2018 NL-55-999-62-2018 NL-55-999-64-2018 NL-55-999-70-2018
19 daughter colonies of queens mated at the mating station were tested:
NL-55-3-86-2020 NL-55-3-87-2020 NL-55-4-21-2020 NL-55-4-31-2020 NL-55-12-10-2020 NL-55-12-72-2020 NL-55-18-5-2020 NL-55-18-6-2020 NL-55-18-20-2020 NL-55-35-21-2020 NL-55-35-23-2020 NL-55-35-28-2020 NL-55-35-33-2020 NL-55-35-34-2020 NL-55-35-35-2020 NL-55-44-22-2019 NL-55-44-49-2019 NL-55-999-32-2020 NL-55-999-37-2020