Reference
Rolf Georg Beutel, Xiao-Zhu Luo, Margarita I. Yavorskaya, Pawel Jaloszynski (2021): Structural megadiversity in leaf litter predators - the head anatomy of Pselaphus heisei (Pselaphinae, Staphylinidae, Coleoptera) – Arthropod Systematics and Phylogeny – 79: 443 - 463.