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Issue: Vol. 5757 No. 6: 11 Feb. 2026
Type: Article
Published: 2026-02-11
DOI: 10.11646/zootaxa.5757.6.3
Page range: 543-556
Abstract views: 24
PDF downloaded: 4

The newly found imagoes of Ochernova tshernovae (Kazlauskas, 1963) from China validating its position in the family (Ephemeroptera: Neoephemeridae)

School of Life Sciences; Nanjing Normal University; Nanjing 210023; China
School of Life Sciences; Nanjing Normal University; Nanjing 210023; China
School of Life Sciences; Nanjing Normal University; Nanjing 210023; China
Ephemeroptera new record phylogeny morphology biology aquatic insect

Abstract

Previously, the male imago of the mayfly Ochernova tshernovae (Kazlauskas, 1963) was not reported. The nymphs and adults of it found in northwestern China in 2025 not only show that this species has a vaster distribution than previously known but also demonstrate it is close to the European species Leucorhoenanthus maxima (Joly, 1871). Both of them share smaller posterolateral projections of abdominal terga in nymphs and smaller compound eyes in males than other genera. Biogeographically, this new finding illustrates that three neoephemerid genera of China (Ochernova, Potamanthellus, and Pulchephemera) are connected. Therefore, both its nymphs and adults are described in detail herein, and the observed biology of it is also presented.

 

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How to Cite

Li, M.-Y., Deng, M.-H. & Zhou, C.-F. (2026) The newly found imagoes of Ochernova tshernovae (Kazlauskas, 1963) from China validating its position in the family (Ephemeroptera: Neoephemeridae). Zootaxa, 5757 (6), 543–556. https://doi.org/10.11646/zootaxa.5757.6.3