I have had a colony of Tapinoma nigerrium for 12 months and about 3 months ago the queen died!
Since then, the colony still continues to grow with pupae which appears to develop into female workers.
My understanding when this happens, it is not uncommon that pupae are produced, but they are not fertilised and therefore develop as males and the colony eventually dies.
But not in this case. Can anybody shed any light on this situation?
Regards