文獻來源:Wu, S., R. Sato, M. Wang. 2014. Elucidating the taxonomic problems surrounding Amblychia sauteri (Prout, 1914) with descriptions of two new species from S. China and Taiwan (Lepidoptera, Geometridae, Ennominae). Tinea 23(1): 10-19.
簡介
大褐尺蛾屬(Amblychia)為分佈於東方區的大型枝尺蛾類群,過去已知有21種之紀錄。異大褐尺蛾(A. sauteri)為Prout於1914年描述於台灣,於2011年出版之「南嶺的蛾」一書記錄亦分佈於中國廣東南嶺山區,Sato與Sameshima(2013)描述日本產外觀近似之奄美大島產獨立種湯灣大褐尺蛾(A. yumanina),於文章撰寫期間與筆者討論中國與台灣產族群之分類問題,該問題在此文章中作下述釐清:
- 異大褐尺蛾為台灣特有種,過去記載之中國南嶺族群為一獨立新種南嶺大褐尺蛾(A. nanlingana Sato & Wang sp. n.),異大褐尺蛾之雌蟲首次被描述;
- 台灣產族群除異大褐尺蛾外,另有一新種福山大褐尺蛾(A. fushana Wu & Sato sp. n.),前者分布於低中海拔(600~1000m)闊葉林帶,成蟲發生於2~4月;後者已知分布於北部低海拔(600~750m)林帶,成蟲發生於2~3月,並與異大褐尺蛾同時地發生。辨識上異大褐尺蛾前翅背腹面近頂角1/3段皆有一條斜向暗色帶紋,後者則無;前者前翅長33-36mm,後者體型較小,前翅長29-31mm。
福山大褐尺蛾(A. fushana Wu & Sato, 2014) 雄蟲 |
福山大褐尺蛾(A. fushana Wu & Sato, 2014) 雌蟲 |
The taxonomic problems surrounding Amblychia sauteri (Prout, 1914) are elucidated. A. sauteri previously recorded in Nanling Mts., S. China is here reconfirmed to be restricted in Taiwan and its female is first described. The Nanling’s population is newly described as A. nanlingana Sato & Wang sp. n. An additional new species, A. fushana Wu & Sato sp. n., occurring sympatrically and synchronously with A. sauteri in N. Taiwan is also described.