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The wing venation is the key here really. The fly pictured is clearly a calyptrate - wing veins radiate to the edge of the wing with little or no sinuosity and no forks beyond the proximal 1/2. There is a strong bend in vein M and this suggests Tachinidae or Sarcophagidae - my guess, based on the bristles and general 'look' of the fly would be Tachinidae. Bombylidae have many more forked veins on their wings, similar to other larger Brachycera, such as Tabanidae. In general, Brachycera wings seem to have many more veins. :)