Hepialiscus taiwanus Ueda, 1988 臺灣蝠蛾

臺灣蝠蛾(Hepialiscus taiwanus)是蝠蛾科(Hepialidae)的成員，僅知分布於臺灣，目前除了一份來自上巴陵的正模標本紀錄，未有其他正式紀錄。本種頭部與前胸為黑褐色，中胸至腹部為黃褐色，觸角甚短且腹眼比例大(此為蝠蛾辨識時的重要特徵)，前翅狹長，黃褐色底，外中線位置有三枚白斑(紅色箭頭)，推測為本種的辨識特徵，後翅為黑褐色底，與前翅形狀近似，無其他翅紋。根據Hampson(1892)的研究，Hepialiscus的定義特徵在於前後翅的R2、R3與R4翅脈共柄。本屬全世界已知4種(Nielsen et al., 2000)，在臺灣則紀錄其中3種(Ueda, 1988)。根據Ueda(1988)的研究，臺灣的三種Hepialiscus白斑各有不同，是除了生殖器外可做為辨識依據的特徵，惟蝠蛾科翅紋一般來說變亦可能很大，比對生殖器是比較可靠的作法。圖中個體來自拉拉山，2010年11月。

A Brief Introduction

Hepialiscus taiwanus represents one of the three Hepialiscus species in Taiwan and is characteristic by the white spots (as red arrow) from the others. Up to date, only one specimen of this species was known and described as the holotype. The individual in present article may be the second specimen of Hepialiscus taiwanus in Taiwan.

References
Hampson GF, 1892. The fauna of British India, including Ceylon and Burma. Moths-vol. 1. 527pp.
Ueda K, 1988. New species of the genus Hepialiscus Hampson (Lepidoptera, Hepialidae) from Taiwan. Bulletin of the Kitakyushu Museum of Natural History 8, 39-54.
Nielsen ES, Robinson GS and Wagner DL, 2000. Ghost moths of the world: a global inventory and bibliography of the Exoporia (Mnesarchaeoidea and Hepialoidea) (Lepidoptera). Journal of Natural History 34: 823 – 878.