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Hi,

a little while, I collected two galls of Retinia resinella, which by then still both contained a caterpillar. However, a little while ago (25-03-2022) I checked on them and found a Diptera pupa in each gall, with no traces of the caterpillar left. Today, an adult emerged from one of the two pupae.
Does anyone have an idea to what species this might be? If needed, I can keep the adult from the second pupa (if it emerges) for further examination.

See https://waarneming.nl/observation/236784489/
Tachinidae indet. larva, parasitizing, uitgekweekt
date host collection: 2022-02-07
location: Ede - Ginkelsche Zand

photos:


















See https://waarneming.nl/observation/233459438/ for the host.

Thanks in advance!

Kind regards,
Rayan Majoor