Adult female Aprostocetus luteus, an idiobiont ectoparasitoid of Mikiola fagi galling Fagus sylvatica, reared using method 3. Ornebjerg, Denmark.  
  Part of: Bruun HH, Haarder S, Buhl PN, Askew RR (2024) Hymenopteran parasitoids reared from European gall midges (Diptera, Cecidomyiidae). Biodiversity Data Journal 12: e118487. https://doi.org/10.3897/BDJ.12.e118487