A new species of a new subgenus and a similar known species referred to the genus Flagellisargus J Zhang, 2012 are described and illustrated based on a male and a female impression fossils of these flies: Flagellisargus (Changbingisargus) parvus subgen. et sp. n. and Flagellisargus (Flagellisargus) cf. sinicus J Zhang, 2012. The latter taxon is the first record of a female Flagellisargus. Recently taken out of Archisargoidea, this study concludes that Flagellisargus should be an archisargid genus based on the known (male) and new (female) impression fossils. The placement of Daohugosargus J Zhang, 2012b is reassessed. It demonstrates close similarities in body structure and wing venation to archisargid flies, and can be retained as an archisargid genus. Archirhagio mostovskii J Zhang, 2015 is separated from Archirhagio zhangi K Zhang et al., 2009. Helempis Ren, 1998 could be, as a separate genus, placed in Archisarginae, Archisargidae.

中文翻译：

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Flagellisargus J Zhang 的新发现，2012（双翅目、短角目、Archisargidae），并讨论了一些有争议的分类群的位置

基于这些果蝇的雄性和雌性印象化石描述和说明了一个新亚属的新物种和一个类似的已知物种，称为 Flagellisargus J Zhang, 2012：Flagellisargus (Changbingisargus) parvus subgen。等 sp. n. 和 Flagellisargus (Flagellisargus) 参见。sinicus J Zhang, 2012。后一种分类单元是雌性鞭毛鱼的第一个记录。最近从 Archisargoidea 中取出的这项研究得出结论，Flagellisargus 应该是基于已知（雄性）和新（雌性）印象化石的 Archisargid 属。Daohugosargus J Zhang, 2012b 的放置被重新评估。它在身体结构和机翼脉络方面与 Archisargid 苍蝇表现出密切的相似性，并且可以作为 Archisargid 属保留下来。Archirhagio mostovskii J Zhang, 2015 与 Archirhagio zhangi K Zhang et al., 2009 分开。