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That is an INCREDIBLE queen!!
The problem with dying could be that they are NOT to be kept in a closed capsule or even a cotton-sealed test-tube, because their strong odour is toxic for themselves in large concentrations, just like with Formica r ufa and some other anthill-making species that live in Finland and Europe. So if you plan on keeping this species Lasius u mbratus, you will need a good ventilation and a big formicarium when the colony grows.
A bunch of queens of this species had been caught by a finnish ant-keeper a few years back and he witnessed only one queen survive after sealing their test-tubes with a cotton ball. After he noticed that the other queens were dead he luckily figured out that the airtightness was the problem there and quickly re-opened her test-tube and the queen continued to live.
I have ten of these social parasitic queens in hibernation right now. They were flying the exact date as their Lasius hosts last year. I have brought the Lasius neonigers and L. alienus queens out of hibernation early so they can start a colony and I will introduce the Lasius umbratus afterwards sometime in a few months when I bring them out of hibernation.
Beautiful species and yes they do emit a lot of highly toxic sprays. Kale's advice is very sound.
EDIT: Went to go check the ant vault, and turns out I have ten, not five like I initially thought.