Predatory Wasps Indoors

[thefish1337]

I seem to have a small population of predatory wasps established in my collection. I first noticed them this past summer, thinking they were thrips but I crushed a few (luckily these cant sting or I missed the stinger) and was able to ID them as small wasps. Since then I see the wasps about once every 3-4 weeks but they seem to be naturalized indoors since these sightings should represent a few generations.

Anyone else have these in their collection/ does anyone introduce them?