Symphylella macropora sp. n. A mandible B first maxilla C–D 15th–18th segments of left antenna C dorsal view (bo-bladder-shaped organ, co-cavity-shaped organ, rso-rudimentary spined sensory organ, so-spined sensory organ) D ventral view E 4th–5th segments of right antenna, dorsal view F 12th leg G stylus on base of 4th leg H right cercus, dorsal view. Scale bars: 20 μm (A–F, H); 5 μm (G).