Pericopina is divided into 36 genera, with the greatest diversity recorded in the Neotropics. Studies on the taxonomy and systematics of pericopines are scarce, and one of the few phylogenetic hypotheses available in the literature places some Afro-Indo-Malayan lineages among the Neotropical representatives. Through a survey of adult morphological characters, we analyzed the phylogenetic relationships in Pericopina including Nyctemera and other Afro-Indo-Malayan genera as putative members of this subtribe. Additionally, we tested the monophyly of Dysschema, a key genus to understanding the evolutionary patterns of the extreme sexual dimorphism and polychromatism in Pericopina. Our cladistic analysis, based on 162 morphological characters, suggests that Pericopina is a polyphyletic group. Xenosoma is the only genus among the Neotropical pericopines related to the Afro-Indo-Malayan species; Scearctia is closely related to Lithosiini, and Pteroodes shows morphological similarities with Phaegopterina. Additionally, Seileria is a new junior subjective synonym of Thyrgis. The monophyly of Dysschema is supported only if the monotypic genera Myserla and Are are included. These are herein designated new synonyms of Dysschema. Our findings suggest that intersexual polychromatism and intersexual polymorphism for wing characters have arisen multiple times in the evolutionary history of Pericopina. Intersexual polychromatism is also widely distributed within Dysschema, perhaps representing a derived feature with multiple origins in the genus.

中文翻译：

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虎蛾（鳞翅目：Erebidae）谱系中性二态性和多色性的进化：推进分类学混沌群的知识

Pericopina 分为 36 属，在新热带地区记录的多样性最大。对 pericopines 的分类学和系统学的研究很少，文献中为数不多的系统发育假设之一将一些非洲-印度-马来亚谱系置于新热带代表中。通过对成虫形态特征的调查，我们分析了 Pericopina 的系统发育关系，包括Nyctemera和其他非洲-印度-马来亚属作为该亚部的推定成员。此外，我们测试了Dysschema的单系，这是了解 Pericopina 极端性二态性和多色性进化模式的关键属。我们基于 162 个形态特征的分支分析表明，Pericopina 是一个多系群。Xenosoma是新热带 pericopines 中唯一与非洲-印度-马来亚种相关的属；Scearctia与 Lithosiini密切相关，而Pteroodes显示出与 Phaegopterina 的形态相似性。此外，Seileria是Thyrgis的新的初级主观同义词。只有当单型属Myserla和Are时，才支持Dysschema的单系被包含在内。这些在本文中被指定为Dysschema的新同义词。我们的研究结果表明，在 Pericopina 的进化史中，翅膀特征的双性多色性和两性多态性已经多次出现。间性多色性在Dysschema中也广泛分布，可能代表了该属中具有多个起源的衍生特征。