本文描述兩種台灣新紀錄之蟲生真菌，Isaria cateniannulata及I. amoenerosea分別是可產生白色及橘紅色的分生孢梗束，兩者的分生孢子皆會形成不規則傾斜排列的孢子鏈。

Two entomopathogenic fungi, Isaria cateniannulata and I. amoenerosea were newly recorded in Taiwan, possessing white and orange-red synnemata, respectively. Both species shared a kind of distinctive conidiogenesis, of which conidia arrangement was in zipper-like chains. The detailed descriptions and illustrations of these two species are provided in this study.