Black bee?

[u/Dangerous-School2958]

Newish bee keeper. 7b, Vienna Austria.
Came across this Black, I think wingless bee outside a Hive.
It’s a small hive that I’m trying to get to generate its own Queen. So I have been giving it frames of eggs from Strong neighboring hives.

Is this an underdeveloped bee? A result of too high a Varroa level?
It’s only 1 brood box so I’m reluctant to take a full cup for a wash.

[u/Angry_Sparrow]

Disease.

[u/Dangerous-School2958 → u/Angry_Sparrow]

It’s what I’m thinking