Reclassification of Teloganodes Eaton 1882 (including subgenera Dudgeodes Sartori 2008 and Derlethina Sartori 2008) with a new species from Sulawesi (Ephemeroptera, Teloganodidae) Author Kluge, Nikita text Zootaxa 2023 2023-02-23 5244 6 527 552 http://dx.doi.org/10.11646/zootaxa.5244.6.2 journal article 10.11646/zootaxa.5244.6.2 1175-5326 7673035 8182831B-25FC-4B92-B319-281659660565 Autapomorphies of Teloganodes (1) On tergalii beginning from the pair III (either pairs III–V, or pairs III–IV, or pair III only), dorsal lobe is deeply cleft ( Figs 1 , 51–53, 55–56 ) (unique autapomorphy). Other, non-unique features of tergalii structure are: tergalius I is absent; tergalius II is operculate, i.e. with dorsal lobe convex, larger than others and never cleft; tergalii II and next ones (either II–V, or II–IV, or II–III) retain the two-branched ventral lobe bearing processes on both its branches (that is initial for Ephemerelloidea ) ( Figs 1 , 50–57 ). (2) Larval, subimaginal and imaginal paracercus is vestigial, 1-segmented. The same in some other mayflies; among Ephemerella/fg1, the same in Dicercomyzon Demoulin 1954 only. (3) In subimago, paired lateral pigmented area of mesonotum (termed here latero-posterior scutal chromozone ) occupies the whole sublateroscutum, the whole submedioscutum and a latero-posterior part of medioscutum, leaving a non-pigmented median area (termed here achromozone ) in a form of unpaired median stripe narrowing posteriorly; the latero-posterior scutal chromozone is separated from the achromozone by a distinct, evenly arched line termed here latero-posterior chromozonal suture ( Figs 27–28 ). The area anteriad of the achromozone is termed here anterior scutal chromozone . Color of the anterior scutal chromozone, the lateroposterior scutal chromozones and the achromozone vary among species, but shape of their borders is constant for Teloganodes . Microtrichia cover most part of scutum, being absent on lateroscutum and posterior scutal protuberances ( Fig. 99 ). In contrast to Ephemerellidae and the most primitive representatives of Pantricorythi, the lateroparapsidal sutures of subimago and imago of Teloganodes are not curved laterally, but converge with the medioparapsidal sutures ( Kluge 2004 : p. 294, character 10 of Ephemerella/fg1) ( Fig. 28 ).