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I think that the oviprovector is more or less invaginated. White spots between oviscapt and last tergite are likely shines or (in last picture) some dust. Preparation of the abdominal end would decide.
Sometimes it cannot be decided if the number of acrostichals rows is six or eight and this character uses to be omitted from keys.
Conspicuously narrow wings (3rd and 4th picture) with high costal index suggest some Drosophila s.str.