Caecianiropsis goseongensis sp. n. holotype, male. A Left mandible, ventral, ×600 B right mandible, ventral, ×600 C hypopharynx, ventral, ×600 D maxillula, ventral, ×600 E distal end of maxillula, ventral, ×1000, F distal end of left mandible, ventral, ×1000, G distal end of pars molaris, ventral, ×1000, H pars incisiva, lateral, ×1000. Scale bars: 100 µm (A–D), 50 µm (E–H).