Zephronia chantaburiensis sp. nov., ♂ paratype (CUMZ-MYR0014) — SEM A head, collum and antenna, dorsal view B ommatidia, inset: organ of Tömösváry C antenna, anterior view D antennal disc, anterior view E apical cones, lateral view F, I gnathochilarium, posterior and ventral views, respectively G sensory cones on central pad, ventral view H sensory cones on inner palpi, black and white arrows point to different types of cones, ventral view J epipharynx, ventral view K mandible, mesal view. Abbreviations: 3it = 3-combed inner tooth, co = condylus, Cp = central pad, ct = central tooth, et = external tooth, Et = external tooth, Ia = inner area, il = incisura lateralis, ip = inner palpi, ll = lamellae linguales, me = mentum, mp = molar plate, pl = pectinate lamellae, rsp = row of spines, sc = sensory cone, st = stipite. Scale bars in millimeters.