文獻來源：Wu, S and Z. B. Xie. 2019. On the clarification of the species identity of Peratophyga Warren, 1894 of Taiwan, with description of a new subspecies (Lepidoptera: Geometridae: Ennominae). Tinea 24 (4): 226-232.
簡介
枝尺蛾亞科晶尺蛾屬（Peratophyga Warren, 1894）為一分布於東南亞與東亞的小類群，近期由Jiang et al. (2012)回顧中國與臺灣分類群並紀錄此屬物種數達17種。臺灣過往僅知一物種，經本研究確認歷來記載此種的四個學名皆為誤鑑定，而應為亦分布於日本與中國的P. grata (Butler, 1879)。又據不同產地個體的比較，台灣個體相較原名亞種與亞種P. g. totifasciata Wehrli, 1923其翅展寬度較長，且據雌生殖器與幼生期形態的差異而描述為臺灣特有亞種P. grata stuningi Wu & Xie, 2019，亞種名獻名給研究東方區尺蛾的知名德國分類學者 Dr. Dieter Stuning，物種建議中文名為寬晶尺蛾。此屬過往寄主紀錄僅有日本產寬晶尺蛾原名亞種於1927年被記錄取食金絲桃科金絲梅（Hypericum patulum），本研究之第二作者確認寬晶尺蛾臺灣亞種取食同屬的雙花金絲桃（H. geminiflorum）。
Abstract
The present study deals with the taxonomic identity of the Peratophyga Warren, 1894 taxon of Taiwan. After type examination and comparative study, the Taiwanese taxon is proved to belong to P. grata (Butler, 1879) but is somewhat different to the nominate subspecies and subspecies totifasciata Wehrli, 1923 in China based on the slight larger wingspan size, the features of female genitalia and known larvae. The new Taiwanese endemic subspecies, P. grata stuningi ssp. nov., is described.
