Glomeridesmus siamensis sp. nov., head, SEM A, B, D male holotype (ZCSWU Myr D000011) A antennae B apical antennomeres C juvenile paratype (ZFMK MYR10304), head, lateral view D antennal base and Tömösváry organ. Abbreviations: I – VII = antennomeres, ad = apical disc, cl = clypeus, co = collum, epc = epicranium, fr = frons, gn = gnathochilarium, il = incisura lateralis, lab = labrum, mb = mandibular base, sc = sensory cones, to = Tömösváry organ. Scale bars: 100 µm (A, C, D), 50 µm (B).