香蕉挵蝶絨繭蜂之記錄

Abstract

本文將在臺灣飼育自香蕉挵蝶（Erionota torus Evans）幼蟲之香蕉挵蝶絨繭蜂（Cotesia erionotae（Wilkinson））分別和飼育自大白紋挵蝶（Udaspes folus Cramer）亦被鑑定為香蕉挵蝶絨繭蜂之本地產寄生蜂與自夏威夷引進之香蕉挵蝶絨繭蜂比較外部形態性狀，結果顯示飼育自香蕉挵蝶者較接近於自夏威夷引進者。因此筆者等推測自夏威夷引進之香蕉挵蝶絨繭蜂已在臺灣立足。 To control the banana skipper, Erionota torus Evans, the braconid parasitoid of E. thrax (Linnaeus), Cotesia erionotae (Wilkinson), was introduced from Hawaii, and released in July, 1987. Meanwhile, a native braconid was found parasitizing in Udaspes folus Cramer (Hesperiidae) on ginger lily. Since this parasitoid was later identified as C. erionotae, a comparision on morphological characters was made. Results revealed that they differ slightly in the punctures and/or hairs of scutellum and first tergum, and the coloration of second tergum. In November, 1988 and March, 1989, larvae of E. torus collected from banana farm at Chiuju, Pingtung, Taiwan were found to be infested by C. erionotae. The morphological characters of this parasitoid were similar to those that introduced from Hawaii. Therefore, we suggest that the C. erionotae introduced from Hawaii has established in Taiwan.