Systematic position of Thraulodes Ulmer 1920 (Ephemeroptera: Leptophlebiidae) and descriptions of new and little-known species Author Kluge, Nikita J. text Zootaxa 2020 2020-03-26 4756 1 1 142 journal article 10.11646/zootaxa.4756.1.1 4d48d52e-6505-4f62-909f-5da5c2cfb489 1175-5334 3736895 urn:lsid:zoobank.org:pub:9FF62616-A7FA-4331-AC51-0F534400631D Group sinuosus Definition. Penis lobes small and extremely simplified, without apical widening; telopenes unusually short, unrolled and bent ventrally-proximally ( Figs 33 , 38, 40 , 54–55 , 60 ). In imago of both sexes, ventral side of pterothorax mostly ocher, with transverse orange band crossing anterior part of mesothoracic episterna and basisternum; abdominal sternum I brown, contrastingly darker than thoracic sterna and remainder abdominal sterna ( Figs 27 , 53, 57 ); femora with one multicolored apical band; in male, abdominal terga II–VI whitish, terga VII–X orange ( Figs 25 , 52 ) (the same coloration of legs and male abdomen in many other species). Composition. Th. ludmilae sp. n. and Th. sinuosus Mariano & Flowers 2011 .