A new genus and species of mayfly, Kachinophlebia zhouchangfai gen. et sp. nov. (Ephemeroptera: Leptophlebiidae), is described and illustrated based on a larva in the mid-Cretaceous amber from Kachin, northern Myanmar. The new taxa are established primarily based on the morphological characters of the mouthparts, legs, abdominal gills, and caudal filaments. The new amber mayfly is the first report of Leptophlebiidae from mid-Cretaceous Kachin amber.

中文翻译：

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缅甸北部白垩纪中期克钦琥珀中的第一只蜉蝣蜉蝣幼虫（昆虫纲：蜉蝣目）

蜉蝣一新属新种Kachinophlebia zhouchangfai gen. 等人。十一月 （蜉蝣目：Leptophlebiidae），是根据缅甸北部克钦邦白垩纪中期琥珀中的幼虫进行描述和说明的。新分类群的建立主要基于口器、腿、腹鳃和尾丝的形态特征。新的琥珀蜉蝣是白垩纪中期克钦琥珀中的Leptophlebiidae 的第一份报告。