Myrmica rubra (Europian fire ant queen) not laying eggs.

[TommySchuurman]

So a few weeks ago I found a Myrmica rubra queen (With wings) walking on the ground, I used test tube setup with small AC test tube portal, because Myrmica rubra queens need to gather food, but after a while I saw two eggs in the test tube and after that I left her alone for few days, also she does eat food, like fruit flies sugar water etc. But I checked today and couldn't find any eggs, maybe she has eaten them? Not sure, or she is hiding the eggs in the cotton balls blocking the water, but i need some help, is she infertile (Because she still has wings, and it can be my bad luck) and if so what should i do? I will wait few days maybe more show up, and leave her alone for a bit maybe she is stressed? Other queens i caught around same time (different species: Lasius niger) have a bunch of eggs even larvae, so i need some help.

Also the temperature is good.

[AM1C39]

She may not be infertile you should maybe feed her more because maybe she got hungry and ate her eggs.