Isaria macroscyticola is a hypocrealean pathogen of Cydnidae first described by Dr. Yosio Kobayasi in 1941. Since then, records of this species have been limited, and therefore no cultures have been established and its phylogenetic position is unknown. Recently, synnemata on Macroscytus japonensis were collected from Kanagawa Prefecture, Japan. These were identified as I. macroscyticola based on the morphologies of the synnemata, conidiophores, and conidia. Since cultures established by conidial isolations exhibited pale purplish colonies and Acremonium-like synanamorph, this species was suggested to belong to Purpureocillium (Ophiocordycipitaceae) rather than Isaria (Cordycipitaceae). The sequence similarities of the internal transcribed spacer region and 28S of nuclear ribosomal DNA and the elongation factor 1-alpha gene sequences of I. macroscyticola and P. lilacinum were 99–100%. Furthermore, I. macroscyticola was phylogenetically nested within the P. lilacinum clade. Accordingly, we conclude that I. macroscyticola is a synnematous form and synonym of P. lilacinum.

大叶鸢尾（Isaria macroscyticola）是小鞭毛虫的一种变菌病原体，最早由Yosio Kobayasi博士于1941年描述。此后，该物种的记录受到限制，因此尚无任何培养物，其系统发生位置也不明。最近，从日本神奈川县收集了日本巨嘴猴（Macroscytus japonensis）上的结膜。这些被确定为我。macroscyticola基础上，synnemata，分生孢子，分生孢子的形态。由于通过分生孢子分离建立的培养物表现出淡紫色的菌落和类似顶孢的Acremonium，因此该物种被认为属于紫癜（Ophiocordycipitaceae），而不是Isaria（Cor科）。核糖体DNA内部转录间隔区和28S的序列相似性与I的延伸因子1-α基因序列相似。macroscyticola和P。紫丁香为99–100％。此外，我。大囊藻系统地嵌套在P内。紫丁香枝。因此，我们的结论是我。macroscyticola是P的同义词。紫丁香。