Drymadusini katydids (Orthoptera: Tettigoniidae; Tettigoniinae): intraspecific variability-morphs or subspecies? Author Korsunovskaya, Olga 0000-0003-3299-6001 Department of Entomology, Faculty of Biology, Lomonosov Moscow State University, Leninskie Gory, 1, Bd 12, 119234, Moscow, Russia korsuno@mail.ru text Zootaxa 2024 2024-01-18 5403 1 42 50 http://dx.doi.org/10.11646/zootaxa.5403.1.2 journal article 286390 10.11646/zootaxa.5403.1.2 b96eba21-af55-43d6-bfba-128fe74a2fcb 1175-5326 10561521 F6EA9A80-45CA-4A27-AFA9-8A0A813907EC E. mongolicus Male calling song was described earlier ( Korsunovskaya et al ., 2002 ). Here we present additional oscillograms ( Fig. 3A, B ), frequency spectrum ( Fig. 3C ) of this sound signal and for the first time microphotographs of the stridulatory file ( Fig. 3G, H ) with 51 ( Fig. 3G ) and 54 ( Fig. 3H ) teeth.