Detailed comparison of two close Chinese species, Teloganopsis punctisetae (Matsumura, 1931) and T. jinghongensis (Xu, You and Hsu, 1984) (Ephemeroptera: Ephemerellidae)

ABSTRACTHistorically and currently, there have been identification confusions between two closely related species, Teloganopsis punctisetae (= E. changbaishanensis Su and You, 1988, syn. nov.) and T. jinghongensis. This study provides clear digital photographs of numerous external structures of these two species and compares them in detail. Morphologically, the nymphs differ in their colour patterns and leg shapes, while the adults have different hindwings, femora, and penial projections. This comparison not only shows the differences in characteristics between these two similar species but also clarifies the identification of the genus Teloganopsis Ulmer, 1939.KEYWORDS: TaxonomynichemayflyChinamorphology AcknowledgmentsWe would like to thank Dr. Luke M. Jacobus (Indiana University Purdue University Columbus) for his valuable suggestion and improving this manuscript.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was supported by the National Natural Science Foundation of China under Grant numbers [31750002 and 32070475], funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD); and key projects of science-technology basic condition platform from The Ministry of Science and Technology of the People's Republic of China, under Grant number [2005DKA21402].