Metaeuchromius anacanthus Li & Li, 2009 無刺帶草螟

無刺帶草螟(Metaeuchromius anacanthus)是草螟科(Crambidae)草螟亞科(Crambinae)的成員，過去僅知分布於海南島，台灣則是一未發表的產地。本種的前翅為鮮黃色底，緣毛微黑色雜有白色，近頂角處有一條白色斜帶與黑褐色斜帶，由前緣向外緣斜下，外緣靠臀角1/2有一排(五個)黑色圓點，中央有一大塊白色斑密佈黑點，近基部1/4有一條銀灰色帶，基部有銀灰色斑；後翅為白色底，沿外緣有一條黑色線，近臀角有三塊黑斑。帶草螟(Metaeuchromius)全世界共記錄14種，主要分布於東方區與古北區，但台灣至今仍未正式發表記錄任何種類。無刺帶草螟最大的特色除了前翅翅紋外，就是後翅的近臀角的三塊黑斑。本屬的種類後翅大多沒有其他斑紋，本種則有三塊黑斑。目前為止，筆者僅採獲來自八仙山與蓮華池的數隻個體，但推測其分布應更為廣泛。

A Brief Introduction

Metaeuchromius anacanthus, a species firstly described in 2009, was known to be an endemic spcies to Hainan. Up to date, no Metaeuchromius species had been recorded in Taiwan, including the present species. However, a few specimen of Metaeuchromius was collected in central Taiwan. After dissection and identification, these specimen is M. anacanthus. This species could identified by the wing pattern of forewing and three dark markings near tornus.