{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,20]],"date-time":"2026-06-20T00:28:06Z","timestamp":1781915286342,"version":"3.54.5"},"reference-count":14,"publisher":"Pensoft Publishers","license":[{"start":{"date-parts":[[2023,6,8]],"date-time":"2023-06-08T00:00:00Z","timestamp":1686182400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["ZK"],"abstract":"<jats:p><jats:italic>Siphlonurus dongxi<\/jats:italic> Li &amp; Tong, <jats:bold>sp. nov.<\/jats:bold> from Shangri-La City, Yunnan Province, China, is described based on egg, nymph, and winged stages. The new species is closely related to <jats:italic>S. davidi<\/jats:italic> (Nav\u00e1s, 1932), and can be distinguished by the colour of the imago, the forking point of MP, the penis, posterolateral spines of tergum IX of imagoes, and first abdominal terga nymph, as well as the structure of the egg. The new species and <jats:italic>S. davidi<\/jats:italic> have the same morphological and structural characteristics, such as the long cubital area with many intercalaries, cross veins between C, Sc, RA, and RSa<jats:sub>1<\/jats:sub> surrounded with distinct pigments, the strong curvature of vein CuP in the forewing, the broad expansion of the hindwing, the membranous penis lobes fused without teeth, supporting the proposition of a new species complex, the <jats:italic>Siphlonurus davidi<\/jats:italic> group. The structures of the penis and the egg of the new species could help understand the origin and evolution of the genus <jats:italic>Siphlonurus<\/jats:italic>.<\/jats:p>","DOI":"10.3897\/zookeys.1166.102847","type":"journal-article","created":{"date-parts":[[2023,6,8]],"date-time":"2023-06-08T14:52:56Z","timestamp":1686235976000},"page":"121-139","source":"Crossref","is-referenced-by-count":3,"title":["\ufeffA new species of Siphlonurus Eaton, 1868 (Ephemeroptera, Siphlonuridae) from Yunnan, China"],"prefix":"10.3897","volume":"1166","author":[{"given":"Kun","family":"Yang","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1258-1573","authenticated-orcid":true,"given":"Xian-Fu","family":"Li","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiao-Li","family":"Tong","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qing-Hua","family":"Cai","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2258","published-online":{"date-parts":[[2023,6,8]]},"reference":[{"key":"102847_B1","first-page":"82","article-title":"An outline of a re-arrangement of the genera of Ephemeridae.","volume":"5","author":"Eaton","year":"1868","journal-title":"Entomologist\u2019s Monthly Magazine"},{"key":"102847_B2","author":"Eaton","year":"1892"},{"issue":"3","key":"102847_B3","first-page":"58","article-title":"The mayfies of Japanese. 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