greenhouse
See also here:
https://www.inaturalist.org/observations/195651229
prélevé quelques ouvrières [Rumsaïs Blatrix dét. sous la bino]
I'm not even sure if this is caespitum group (complex on iNaturalist). Here is a video of this colony:
https://imgur.com/a/BO6RmQL
I collected specimens when I was there. I will check them out under my microscope soon.