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Good news, the key in Flies of China says there are only three species of Tachina (Servillia) with dark calypters, and they have a dark body with reddish hair on the abdomen like your fly. Bad news, your fly is not any of those three species, all of which are found far to the west and also differ in some color or structural character.

The illustration of Tachina bombidiforma (Chao, 1987) shows proclinate orbitals, and although the sex is not specified it is paired with an illustration of male genitalia. T. furcipennis (Chao & Zhou, 1987) has light hair and pollen on the head. T. haemorrhoa (Mesnil, 1953) has a broader frons. If general appearance is reliable you have a cousin to these species. General appearance is not always reliable in Tachinidae.