Symphylella longispina sp. nov. A mandible, lateral view (pi – pars incisivus, pm – pars molaris, lm – lacinia mobilis) B first maxilla C left 1–3 antennomeres, dorsal view D terminal three antennomeres, dorsal view (bo – bladder-shaped organ, co – cavity-shaped organ, rso – rudimentary spined sensory organ, so – spined sensory organ) E terminal three antennomeres, ventral view F left cercus, dorsal view (arrows indicate long and erect outer setae) G left cercus, ventral view H frons (L1–L5 – lateral setae, a0 – antero-central seta, arrows indicate macrosetae) I leg 12, dorso-lateral view. Scale bars: 20 μm.