Taxonomy of the Proisotoma complex. V. Sexually dimorphic Ephemerotoma gen. nov. (Collembola: Isotomidae) Author Potapov, Mikhail Author Kahrarian, Morteza Author Deharveng, Louis Author Shayanmehr, Masoumeh text Zootaxa 2015 4052 3 345 358 journal article 10.11646/zootaxa.4052.3.4 d4091bed-62c2-44b2-92fa-128702fb8c9e 1175-5326 243233 E746140C-2239-4425-9007-31AC036D852C Key to known species of Ephemerotoma 1 Abd.V with corona-like wart well separated from surrounding cuticle.......................... genus Proctostephanus - If present, humps at posterior edge of Abd.V don't form distinct corona-like wart................ genus Ephemerotoma ... 2 2 Mucro with 3 teeth. Ventral chaetae on Th.III absent. Abd.V unmodified......................... huadongensis ( China ) - Mucro with 2 teeth. Ventral chaetae on Th.III present. Abd.V modified: with wart or wrinkles......................... 3 3 Proximal half of anterior side of dens with a chaeta ( Figs 8, 9 ). Ant. 1 with 3 or more sens........ skarzynskii sp.nov. ( Iran ) - Proximal half of anterior side of dens without chaetae ( Figs 22, 23 , 33 ). Ant. 1 with 2 sens......................... ... 4 4 Abd.V with sens arranged as in Fig. 30 , in two oblique rows, long lateral sens set close to short sens; all chaetae about the same length ( Fig. 29 )................................................................ multituberculata ( Tajikistan ) - Abd.V with sens arranged as in Fig. 34 , in two transverse rows; with very distinct long and short chaetae......................................................................................... porcella (E Mediterranean: Crete)