We here propose a new monotypic butterfly genus Scriptor Nakahara & Espeland, n. gen. to accommodate a new species, S. sphenophorus Lamas & Nakahara, n. sp., described and named herein. Scriptor sphenophorus n. gen. and n. sp.is a relatively common and widespread butterfly species which is recovered as a member of the so-called “Splendeuptychia clade” in the nymphalid subtribe Euptychiina, based on our molecular phylogenetic analysis using a maximum likelihood approach. Nevertheless, its sister group is not confidently resolved in any analysis, supporting a relatively distant relationship to any described genus as well as our decision to establish a new monotypic genus. We further discuss the proposed taxonomy in the light of frequent criticism of the description of monotypic taxa, as well as emphasize the importance of incorporating multiple evidence when describing new genera, illustrated by reference to several recent generic descriptions in this subtribe.

中文翻译：

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一种常见且分布广泛的亚马逊沙丁蝶（鳞翅目：蛱蝶科：沙蝶亚科：沙蝶）的新属和种的描述

我们在这里提出了一个新的单型蝴蝶属 Scriptor Nakahara & Espeland, n。将军 容纳一个新物种，S. sphenophorus Lamas & Nakahara, n. sp.，在此描述和命名。Scriptor sphenophorus n. 将军 和 n。sp. 是一种相对常见和广泛存在的蝴蝶物种，根据我们使用最大似然方法进行的分子系统发育分析，它作为蛱蝶亚部落 Euptychiina 中所谓的“Splendeuptychia 进化枝”的成员被恢复。然而，它的姐妹群在任何分析中都没有自信地解决，支持与任何描述的属的相对较远的关系以及我们决定建立一个新的单型属。鉴于对单型分类群描述的频繁批评，我们进一步讨论了拟议的分类法，