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Is it possible to identify to family al least this immature specimen?

Birch forest in a mountainous area near Madrid. 4th August, 2017.

Regards,

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I would guess Tachinidae, but it would be best to wait for a tachinid expert to confirm that!

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I was thinking Tachinidae or Sarcophagidae. Sarcophagidae because of the weak acrostichal bristles. Usually at least two pairs are strong in Tachinidae.

A few groups of Tachinidae, including many Dexiinae, have three pairs of scutellar bristles with apical pair long and crossed.

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I see it's not easy precisely, but in this case a possible Tachinidae or Sarcophagidae is good enough for me. Thank you to both of you.