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Does anyone know the host of the small tachinid Paracraspedothrix montivaga, please? It was only recently discovered in Britain (2002 I think) but its few records are quite widely spread. I have now found it twice on seepages on limestone cliffs in Wales. I watched some for an hour hoping to see some egg-laying, but all they did was walk around on mossy tufa, tasting it. If their host is in the tufa, small cranefly or Oxycera larvae seem most likely. Though I am not certain the ones I was watching were females.

John Bratton