Found in a container with Lycaenidae pupae (from larvae, not identified yet, some common species I believe). Apparently emerged from yellowish cocoons at the bottom of a lid. Size 2.5-3mm.
Yes I think it is a braconid. It might belong to the Microgastrinae (which are endoparasites of larval Lepidoptera). We'll ask Kees when he is back again!