Ischnothyreus dactylinus sp. n., male. A, D left palp, prolateral view B distal part of palpal bulb, apical view C, E left palp, retrolateral view F, G left chelicera, posterior and anterior views. Abbreviations: fdp = flake-like dorsal process; mta = membranous, triangle-shaped apophysis; sfa = sclerotized, finger-like apophysis; vp = ventral projection; vpr = ventral protuberance. Scale bars: A–C = 0.1 mm; D–G = 0.05 mm.