This photo is from my experience with captive breeding european species of ,,,snapy detritus ants" Strumigenys argiola from single queen.
More on biology of these interesting ants will be published in entomological publication later this year.
Most probably, observations of european Strumigenys species´s biology was never done by anyone before and in general, it is a pity that majority of myrmecological publications aims rather onto ant taxonomy than biology. If you want to do some public science with cryptic species too, you can stick with infos posted in articles on my page: http://www.polistes.sk/cryptic_ants-biology/