The classification of the Tabanidae had remained stable over the last 60 years after Mackerras proposed a great revolution in the arrangement of the family. Recently, some new proposals based on molecular data have once again changed the classification of the family, mainly with a focus on the tribe Scionini. The present paper introduces a critical analysis based on the taxonomical view of the recent proposed classification of Scionini. Three genera are discussed: Lepmia Fairchild, Parosca Enderlein, and Pseudoscione Lutz. Lepmia atra (Philippi), L. grisea (Jaennicke), and L. leucothorax (Ricardo) are transferred to a new genus, Sixtomyiagen.n., based on its morphological differences from Lepmia. Other three species receive a new combination: Parosca subulipalpis (Enderlein) n. comb., Pseudoscione albifrons (Macquart) n. comb., Ps. hibernus (Wilkerson & Coscarón) n. comb. A key to species of Sixtomyia is provided and diagnostic characters are illustrated.

中文翻译：

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关于新热带接穗虫（Tabanidae）分类的评论，并附有新属的描述。

在Mackerras提出家庭安排的一次伟大革命之后的60年中，the科的分类一直保持稳定。最近，一些基于分子数据的新提议再次改变了家族的分类，主要侧重于Scionini部落。本文基于最近提出的Scionini分类的分类学观点，介绍了一种批判性分析。讨论了三个属：Lepmia Fairchild，Parosca Enderlein和Pseudoscione Lutz。Lepmia ATRA（腓），L.菌（Jaennicke），和L. leucothorax（里卡多）被转移到一个新属，Sixtomyia gen.n.，基于其与Lepmia的形态差异。其他三个物种获得了新的组合：Parosca subulipalpis（Enderlein）n。梳。，假单胞菌albifrons（Macquart）。梳。，PS。hibernus（威尔克森＆Coscarón）ñ。梳。提供了六胞胎种类的关键，并说明了诊断特征。