Abstract
In June 2025, a mayfly survey in central China revealed a new Potamanthodes species, which shares relatively big compound eyes with other two congeners (P. macrophthalmus You, 1984 and P. yooni (Bae & McCafferty, 1991)). In contrast, its nymphs have larger mandibular tusks and its male imagos have more wing pigmentation and more strongly curved forceps than those species. Therefore, it is herein named P. curvativus sp. nov. This discovery provides new insights into the evolution of nymphal eyes, mandibular tusks and the venation of imagos within the genus Potamanthodes.
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