15 daughter colonies of the 4a were tested:
CH-52-21-2-2018 CH-52-21-8-2018 CH-52-21-83-2017 CH-52-21-96-2017 CH-52-21-103-2017 CH-52-21-104-2017 CH-52-21-105-2017 CH-52-21-106-2017 CH-52-21-107-2017 CH-52-21-110-2017 CH-52-21-111-2017 CH-52-21-114-2017 CH-52-21-120-2017 CH-52-21-121-2017 CH-52-21-440-2017
50 tested queens were mated at the mating station:
CH-52-22-1-2020 CH-52-22-14-2020 CH-52-22-18-2020 CH-52-22-19-2020 CH-52-22-20-2020 CH-52-22-24-2020 CH-52-22-26-2020 CH-52-22-28-2020 CH-52-22-29-2020 CH-52-22-30-2020 CH-52-22-33-2020 CH-52-22-37-2020 CH-52-22-38-2020 CH-52-22-39-2020 CH-52-22-40-2020 CH-52-22-41-2020 CH-52-22-43-2020 CH-52-22-44-2020 CH-52-22-46-2020 CH-52-22-47-2020 CH-52-22-79-2020 CH-52-22-81-2020 CH-52-23-107-2020 CH-52-23-110-2020 CH-52-23-114-2020 CH-52-23-115-2020 CH-52-23-117-2020 CH-52-23-118-2020 CH-52-23-119-2020 CH-52-23-120-2020 CH-52-40-73-2020 CH-52-40-75-2020 CH-52-40-76-2020 CH-52-40-77-2020 CH-52-40-78-2020 CH-52-40-80-2020 CH-52-40-81-2020 CH-52-40-110-2020 CH-52-40-112-2020 CH-52-40-122-2020 CH-52-211-11-2020 CH-52-211-21-2020 CH-52-211-22-2020 CH-52-211-23-2020 CH-52-211-24-2020 CH-52-211-25-2020 CH-52-211-26-2020 CH-52-211-50-2020 CH-52-211-61-2020 CH-52-211-73-2020
No daughter colonies from colonies mated at the station were tested yet.