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An interesting paper indeed! However, in the overall description of genus Estheria some characters are given that do not fit your pictured animal, e.g. "mid-dorsal depression on abdominal syntergite 1+2 extending back to hind margin of that segment" and "abdominal tergites 3–5 with discal setae". So I doubt that yours is an Estheria. Dinera grisescens (http://tachinidae...fo/file/65) would be a good match.