SEM images, head of P. heisei, (A) frontal view; (B–D) ventral view, flattened hyaline setae removed. Abbreviations: bs, basistipes; ca, cardo; ce, compound eye; ga, galea; gp, glandular pore; gs, gular suture (vestigial); lp, labial palp; lr, labrum; md, mandible; mt, mentum; nr, neck region; ppf, palpifer; ptp, posterior tentorial pit; sc, scapus; smt, submentum.

 
 
  Part of: Beutel RG, Luo X-Z, Yavorskaya MI, Jałoszyński P (2021) Structural megadiversity in leaf litter predators - the head anatomy of Pselaphus heisei (Pselaphinae, Staphylinidae, Coleoptera). Arthropod Systematics & Phylogeny 79: 443-463. https://doi.org/10.3897/asp.79.e68352